Zygotic selection against dominant alleles is more efficient than selection against recessive alleles. It can take fewer than 100 generations to eliminate a dominate delterious allele with an initial frequency of 0.70.
According to hardy- Weinberg equilibrium scientist have observe at-least two generation. Allele frequencies are the same for both generations then the population is in the Hardy- Weinberg equilibrium. The frequency of heterogeneous individuals are equal to 2pq.
In case of 2pq equals 0.32 which means that the frequency of individuals heterozygous for this gene is equal to the 32%. Hardy- Weinberg equation is , p=the frequency of dominant allele in a population.q= frequency of recessive allele in a population.
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Which substance helps the most in the digestion of food? enzymes chyme viruses hormones
Enzymes is the right answer
Substance that helps the most in the digestion of food is enzymes.
What are enzymes?Enzymes are proteins that aid in accelerating our bodies' chemical reactions, or metabolism.Some compounds are created, while others are broken down. Enzymes are a part of all living things. Enzymes are created by our bodies spontaneously.Examples of digestive enzymes:Amylase:generated in the mouth. Smaller sugar molecules are formed from the breakdown of larger starch molecules.Pepsin:Pepsin is produced in the stomach. Pepsin aids in the amino acid breakdown of proteins.Trypsin:The pancreas produces trypsin. Proteins are also broken down by trypsin.Lipase:The pancreas produces pancreatic lipase. It is employed to separate fats.Ribonuclease and deoxyribonuclease:The pancreas makes ribonuclease and deoxyribonuclease. In nucleic acids like DNA and RNA, these enzymes are responsible for rupturing bonds.What are the four roles that enzymes play?Numerous biological processes, including development, blood clotting, disease treatment, respiration, digestion, reproduction, and many more, are aided by enzymes.Enzymes play important roles in a variety of biological processes in living things.To learn more about enzymes visit:
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The diagram below shows an ornithiscian dinosaur, an ancient bird called archaeopteryx, and the modern day bird.
Based on the diagram, which of these statements is most likely correct?
A) Modern day birds have evolved from dinosaurs.
B) Archaeopteryx has evolved from modern day birds.
C) Ornithiscian dinosaurs had evolved from modern day birds.
D) Ornithiscian dinosaurs had evolved from the archaeopteryx.
Answer: option A is the correct answer
Explanation:
Answer:
Option A is the correct answer
Explanation:
Look at the diagram
The absorption of carbon dioxide from plants can be analyzed via satellite as shown in the image below. In the image below, green represents land areas where carbon dioxide is being absorbed, and blue represents sea areas where carbon dioxide is being absorbed. The darker the color, the more carbon that location absorbs each year.
In this world map, land areas are colored green and ocean areas are colored blue. The greener or bluer the location, the more carbon that location absorbs each year. Location A is very green.
Public Domain
What can you conclude about Location A?
The carbon is causing climate change in this zone.
There is little carbon being released by decomposers.
The carbon is sinking into long-term storage as a result of combustion.
There is a large amount of carbon being absorbed through photosynthesis.
The conclusion which is most valid about location A according to the description of the image is that; There is a large amount of carbon being absorbed through photosynthesis.
What is Photosynthesis?The simple definition of photosynthesis indicates that it is a food-production process of green plants in which case, Carbon is absorbed and carbon dioxide is released.
Hence, since the location A is ascertained to be very green, it follows from the description in the task content that location A has a large amount of carbon being absorbed through photosynthesis as most plants are on land.
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Explain the difference between weather and climate. Create a statement that describes weather and one that describes climate. Describe the weather factors that are important in determining where plant and animals can exist in an area. Describe at least three types of weather data that is collected, the instruments used to collect the data, and in what units they are measured. Differentiate between the three major climate zones.
Answer:
Weather refers to short term atmospheric conditions while climate is the weather of a specific region averaged over a long period of time. Climate change refers to long-term changes.
Explanation:
What is a difference between climate and weather?
Image result for explain the difference between weather and climate.
Weather can change from minute-to-minute, hour-to-hour, day-to-day, and season-to-season. Climate, is the average of weather over time and space. We hear about weather and climate all of the time. Most of us check the local weather forecast to plan our days.
What are the 3 differences between weather and climate in points?
Weather is the combination of temperature, humidity, precipitation, cloudiness, visibility, and wind. In popular usage, climate represents the synthesis of weather; more formally, it is the weather of a locality averaged over some period (usually 30 years), plus statistics of weather extremes
Explanation:
Weather is rain, snow, thunderstorms, hail, etc. Climate is a desert, island, rain forest, etc. Animals and plant's all need different weather and climate. For example a cactus's needs a hot climate and doesn't need a lot of wet weather (rain, snow, hail, thunderstorm, etc)
As a result of blockage in the pulmonary artery, blood would first back up into the?
If the pulmonary artery is blocked, blood would go back up to the right ventricle of the heart.
What is pulmonary artery stenosis?The pulmonary artery is responsible for carrying the deoxygenated blood from the right ventricle of the heart to the lungs to get oxygenated.
Pulmonary artery stenosis is a condition in which the pulmonary artery gets narrowed or blocked. Therefore, blood flow from the heart to the lungs is hampered.
This creates pressure on the walls of the heart. Also, if blood flow towards the lungs is hampered, the heart will not receive the required amount of oxygen. All of this will lead to damage to the heart muscles over the course of time.
Therefore, as a result of the pulmonary blockage, blood would first back up into the right ventricle.
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The pulmonary artery is the part of the circulatory system that carries deoxygenated blood. The blockage in the pulmonary artery will back up the blood into the right ventricle. Thus, option d is correct.
What is the right ventricle?The right ventricle is one of the chambers of the heart that is present on the lower side and pumps the blood with low oxygen concentration. It receives the deoxygenated blood from the upper chamber called the right atrium.
The deoxygenated blood from the body is collected by the pulmonary artery that passes it to the right ventricle of the heart. This then passes to the left atrium where the oxygenated blood is circulated to the body.
Therefore, option d. blockage in the pulmonary artery will move the blood into the right ventricle.
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Your question is incomplete, but most probably your full question was, As a result of a blockage in the pulmonary artery, blood would first back up into the:
a. aorta.
b. left ventricle.
c. pulmonary veins.
d. right ventricle.
During a college fraternity party, neil mixes xanax, a central nervous system depressant, with alcohol and loses consciousness. this effect is known as _____.
During a college fraternity party, Neil mixes Xanax, a central nervous system depressant, with alcohol and loses consciousness. this effect is known as a synergistic effect
When two or more processes work together, a synergistic effect is created that is greater than the sum of the effects that each process would have on its own. Skin damage brought on by both tobacco smoke and UV rays is more severe than skin damage brought on by either one on its own. Another illustration is the science class project "baking soda volcano."
When two or more drugs interact synergistically, the combined effect of the drugs is greater than the sum of the individual effects of each drug. Synergistic effects can be advantageous or detrimental.
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The complex of dna and protein that makes up a eukaryotic chromosome is properly called __________.
The complex of DNA and protein that makes up a eukaryotic chromosome is properly called chromatin .
Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells.
What is the chromatin and its function?
To create chromosomes, chromatin fibers are coiling and condensing. Numerous cellular functions, including DNA replication, transcription, DNA repair, genetic recombination, and cell division, are made possible by chromatin.What is chromatin in cell?
Chromosomes in eukaryotic cells are made of chromatin, a compound of DNA and proteins. Nuclear DNA is extremely compressed and wrapped around nuclear proteins in order to fit inside the nucleus; it does not exist as free linear strands.Where is chromatin found?
Chromatin is a genetic material or a macromolecule comprising DNA, RNA, and associated proteins, which constitute chromosomes in the nucleus of a eukaryotic cell. This chromatin is located within the cell nucleus.Learn more about chromatin
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Soil is BIOLOGICALLY weathered with the help of which of these?
A. temperature changes
B. water and wind
C. tree roots, lichens, and other living organisms
Answer:
C
Explanation:
The key word here is "biologically", thus involving living things.
Temperature changes and water/wind are not living organisms that impact the weathering of soil. However, tree roots and lichens are living and break the soil down for nutrients.
What does each star become after the main sequence stage?
PERFECT QUESTION! SPACE IS WHERE ALL MY INTERESTS ARE!
Answer:
Once a star reaches the limit of it's current stage, which in this case, is the main sequence stage, it will expand and cool, resulting a Red Giant.
What are the stages in the life of a star and what happens in each?1. Nebula
A nebula is an out-of-this-world cloud of gas (hydrogen) and dust. The nebulae are where stars are born. Nebulae come in a variety of forms. A brilliant emission nebula, like the one in Orion, shines because the gas there is powered by the stars that have already formed there. Starlight reflects on the dust particles within a nebula to form a reflection nebula. The Pleiades Cluster's nebula is an example of a mirror nebula. There are also Dark Nebula. These are thick, hydrogen-filled clouds that either fully or partially block the light from the stars behind them, such as the Horsehead Nebula in Orion.
2. Star
A star is a glowing ball of gas that generates all of its own heat and light through nuclear processes (nuclear fusion). They are made primarily of hydrogen and helium gas and are created from nebulae. The colors that correlate to the surface temperatures, which vary from red to blue-white, span from 2000 C to above 30,000 C. With masses 100 times greater than the Sun's, the brightest stars produce as much light as millions of Suns. They have a lifespan of just a million years before becoming supernova. Red dwarfs, which are just a thousandth as luminous as the Sun, are the weakest stars. A star can have a minimum mass of around 8% of the mass of the Sun, or 80 times the mass of the planet Jupiter, for nuclear processes to occur. Brown dwarfs or big planets are objects that have less mass than the critical mass and glow very weakly. A star like the Sun swells out into a red giant as it nears death, loses its outer layers as a planetarian nebula, and then contracts to become a white dwarf.
3. Red Giant
The surface of this big, brilliant star is chilly. It develops as a star like the Sun's core runs out of hydrogen fuel in its final phases of growth. The diameter of a red giant ranges from 10 to 100 times that of the sun. Despite having a surface temperature between 2000 and 3000C that is lower than that of the Sun, they are extraordinarily brilliant due to their size. Super Giants are a common name for red giants, very massive stars. These stars frequently exhibit luminosities one million times higher than the Sun and have dimensions up to 1000 times that of the Sun.
4. Red Dwarf
These are extremely tiny, dim, and cold stars that have a mass and diameter that is roughly equal to that of the Sun. They have an estimated lifespan of 100 billion years and burn very slowly. Proxima Centauri and Barnard's Star are red dwarfs.
5. White Dwarf
This tiny, blazing star is at the end of its life cycle as a star like the Sun. White dwarfs are stars that are similar in mass to the Sun but have a diameter that is just 1% as large as the Sun, or around the size of the Earth. Although a white dwarf is smaller than the Sun and has a surface temperature of 8000C or more, it has an overall brightness of little more than 1% of the Sun. The shriveled remnants of typical stars whose nuclear energy reserves have been depleted are known as white dwarfs. Due to gravitational processes, white dwarfs are composed of degenerate matter with an extremely high density; one tablespoon contains many tonnes of mass. Over a few billion years, white dwarfs cool and disappear.
6. Supernova
This is a star's cataclysmic demise, which frequently gives the star for a brief period the brilliance of 100 million suns. Supernovae often fall into two categories: - These are Type I explosions, which take place in binary star systems when gas from one star collides with a white dwarf, triggering an explosion. Type II These occur in stars that are 10 times as massive as the Sun or more, and near the conclusion of their lifetimes, they experience runaway internal nuclear reactions that result in an explosion. Black holes and neutron stars are what they leave behind. The primary source of elements heavier than hydrogen and helium is assumed to be supernovae.
Thank you,
Eddie
What type of microorganism can live and multiply only inside an appropriate host cell?
Answer: Viruses
Explanation:
Viruses are tiny infectious agents that rely on living cells to multiply. They may use an animal, plant, or bacteria host to survive and reproduce.
Which of the options is not a general requirement for complex multicellular life?
a. Cells must retain a full range of functions, including reproduction s not a general requirement for complex multicellular life
Cell motility, cell contact, cell specialization, and cell proliferation are the four fundamental processes that create a multicellular organism. All of these activities take place simultaneously in a developing embryo in a myriad of different ways throughout the body.Complex multicellular organisms exhibit signs of intercellular communication, cell-cell adhesion, and, frequently, tissue development driven by regulatory gene networks. Many of these taxa experience intentional cell death, but unprogrammed cell or tissue loss can be fatal—possibly more so in metazoans than in other species with permanent stem cells.Hence other options except a are required for complex multicellular life.learn more about complex multicellular life here: https://brainly.com/question/11801282
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DISCLAIMER
Which of the following is not a general requirement for complex multicellular life?
a. Cells must retain a full range of functions, including reproduction.
b. Cells must stick together.
c. Cells must communicate with one another.
d. Cells must participate in a network of genetic interactions that regulate cell division.
e. All of these options are requirements for complex, multicellular life.
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Barbara mcclintock examined the mechanism for the appearance of purple spots in the kernels of yellow and white corn. She attributed the spots to?
Barbara Mcclintock examined the mechanism for the appearance of purple spots in the kernels of yellow and white corn. She attributed the spots to transposable elements(TE) or jumping genes.
McClintock studied the so-called Ac/Ds system in maize, which she learned about by carrying out conventional genetic breeding experiments with a peculiar phenotype. Through these tests, McClintock discovered that breakage happened at particular locations on the maize chromosomes.
She did, in fact, find the first transposable element (TE) at the aptly termed "dissociation" location of chromosome breakage (Ds). McClintock initially observed that the movements of Ds are controlled by an autonomous element called "activator" (Ac), which may also promote its own transposition. She later discovered that some TEs could "jump" autonomously.
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Soil is considered to be a living system. As such, it contains both biotic and abiotic factors. Which of the following is a biotic, or living, part of the soil?
A. minerals
B. gases
C. microorganisms
Answer:
C. microorganisms is your answerExplanation:
Minerals and gases are abioticMicroorganisms are biotic or living things.Bacteria, protozoa, algae, and fungi are microorganisms. And there're living organisms.URGENT! What results would you expect to see if exercise does not increase bone mass?
When exercise does not increase bone mass, it has been observed that the risk of bone fractures increases due to osteoporosis.
What are the benefits of exercise to bone mass and density?
Bone mass refers to the mass of the bones in a living organism as a result of the deposition of minerals within the bone.
An increase in bone mass is directly related to the strength of the bone.
Strong bones have high bone masses whereas weak bone have low bone mass.
Physical activity have been shown to improve bone mass by increase the mass of deposited minerals in the bone.
Exercise such as walking, running, jogging, and other forms of exercise have been shown to improve bone mass and hence, the strength of bones.
However, when exercise does not increase bone mass, osteoporosis is observed which results in bone fracture.
In conclusion, the strength of a bone is directly related to the bone mass which is directly related to the mass of minerals deposited within them.
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If transcription occurred from left to right, what is the second amino acid in the growing polypeptide chain?
Glutamine is the second amino acid in the growing polypeptide chain.
What is glutamine?An amino acid used in the production of proteins is glutamine. Its side chain is comparable to glutamic acid's, with the exception that an amide is used in place of the carboxylic acid group. It is categorized as a polar, charge-neutral amino acid.The body uses glutamine as a building block to create proteins. Additionally, it's required to create glucose and other amino acids. Supplemental glutamine may benefit immune system, gastrointestinal, and other systems, particularly during stressful situations when the body consumes more glutamine.According to recent research, glutamine shouldn't cause you to put on weight. Only lean muscle appears to be impacted by this amino acid, not fat stores. Consuming glutamine as a dietary supplement has no impact on your body's caloric requirements or metabolism.Consuming foods high in glutamine can help you stay healthy. The body's glutamine levels can be increased by eating foods like red cabbage, shellfish, grass-fed beef, eggs, legumes, milk, yogurt, almonds, ricotta cheese, beans, parsley, dark leafy greens, and organ meat.Learn more about glutamine here:
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The prostate, seminal glands, and bulbo-urethral glands produce __________, the liquid medium in which sperm leaves the body.
The prostate, seminal glands, and bulbo-urethral glands produce Seminal fluid, the liquid medium in which sperm leaves the body.
What is Seminal fluid?The seminal vesicles and prostate gland make a whitish fluid called seminal fluid, which combines with sperm to form semen when a male is sexually stimulated.Fluid from seminal cysts is thick. It contains fructose, citric acid, proteins, potassium, inorganic phosphorus, and prostaglandins. When the fluid incorporates with sperm in the ejaculatory duct, the fructose evolves the direct source of energy for the sperm outside a man's body.semen, also named seminal fluid, is fluid that is ejected from the male reproductive tract and includes sperm cells, which are competent for fertilizing the female's eggs. Semen also prevents liquids that connect to form seminal plasma, which helps keep the sperm cells possible.To learn more about Seminal fluid, refer to:
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Rogers named his technique "client-centered therapy" to emphasize his belief that O clients should play a major role in determining the pace and direction of their therapy O the client is in a position of natural status and authority over the therapist O therapists should always share all of their thoughts, feelings, and experiences with clients O clients should always be the center of attention
Rogers named his technique "client-centered therapy" to emphasize his belief that clients should always be the center of attention. That is option D.
What is client-centered therapy?Client-centered therapy which is also called person centered therapy is a non-directive approach in psychotherapy used for the client to achieve greater independence.
Using the word client-centered therapy shows that clients should always be the center of attention.
The principles of client-centered therapy include the following:
The therapist is congruent with the client. The therapist provides the client with unconditional positive regard. The therapist shows an empathetic understanding to the client.Learn more about psychotherapy here:
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The graph demonstrates the quantitative variation for skin pigmentation.
A bar graph has skin pigmentation color on the horizontal axis and Proportion of population on the vertical axis. From lightest to darkest skin colors, the proportions are: 1/64, 6/64, 15/64, 20/64, 15/64, 6/64, 1/64.
Which conclusion is supported by the graph?
More than half of the population has the central skin pigmentation.
The lightest and the darkest skin pigmentations are equally common in the population.
The central skin pigmentation makes up more of the population than the rest of the skin pigmentation groups combined.
Fewer people have skin pigmentation lighter than the central peak than people who have pigmentation darker than the central peak.
The graph demonstrates the quantitative variation for skin pigmentation and concludes that the lightest and the darkest skin pigmentations are equally common in the population.
Why are the lightest and darkest skin pigmentations equal ?Human skin can be any shade of brown, from the deepest to the palest. Variation in pigmentation, which is brought on by genetics (inherited from one's biological parents and/or specific gene alleles), exposure to the sun, natural and sexual selection, or any combination of these, is what gives people their different skin tones. Natural or sexual selection, social norms, varying environments, and laws governing the biochemical consequences of ultraviolet radiation penetrating the skin all contributed to population changes over time.Here, the ratios of lightest to darkest pigmentation is gives as 1/64 + 6/64 + 15/64 + 20/64 + 15/64 + 6/64 + 1/64 Therefore, we get 64/64 so hereby we can conclude that the lightest and the darkest skin pigmentations are equally common in the population.What is skin pigmentation?Your skin's color is referred to as skin pigmentation. It is determined by the quantity and kind of melanin, a pigment produced by specialized skin cells called melanocytes. Pigment disorders like hyperpigmentation (dark spots), hypopigmentation (light spots), and depigmentation can be brought on by changes in melanin production.Can learn more about skin pigmentation from https://brainly.com/question/23723742
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Streptomycin is an antibiotic that interferes with the function of the 30s subunit of the prokaryotic ribosome. what is the consequence of treating a bacteria with streptomyci?
Streptomycin is an antibiotic that interferes with the function of the 30s subunit of the prokaryotic ribosome. when it's treated on bacteria it reacts by binding to the site where tRNA typically binds, an anticodon.
Streptomycin, interferes with ribosomal activities and inhibits bacterial protein synthesis in vitro. Streptomycin can fit into the binding site for anticodons and interfere with the binding site for tRNA derivatives due to the structural similarities between it and the anticodon.
For instance, it prevents polypeptide synthesis triggered by either synthesised polynucleotides or natural mRNA3-5, leading to significant genetic code misinterpretation in the latter scenario. The medication also causes polysomes to break down and releases fMet-tRNA from interacting with the 70S ribosome.
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Energy flows through ecosystems by way of trophic levels. where does the original energy come from? a. food b. sunlight c. producers d. decomposers
The correct answer is B) Sunlight.
Sunlight is the main source of energy that flows through the ecosystems via different trophic levels.
How sunlight is converted into transferable energy?A few percentage of sunlight is termed Photosynthetically active radiation (PAR). This light has a wavelength of 400-700 nm. This is the light that plants use for the process of photosynthesis.
Plants use this energy to convert water and carbon dioxide into glucose and oxygen with the help of chlorophyll. The glucose formed is the energy product of the reaction.
So plants are called producers because they can make energy by their own. Consumers consume plants for energy requirements and so on.
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The ____ nucleus of the thalamus is associated with pain perception of the body. group of answer choices
The ventral posterior nucleus of the thalamus is associated with pain perception of the body. group of answer choices.
The ventral posterior nucleus is the somato-sensory relay nucleus in thalamus of the brain. As the name suggests, this nucleus is located in the ventral part of the posterior thalamus. It is lateral to another part of the somatosensory thalamus, the ventral posterior medial (VPM) nucleus. The ventral posterolateral nucleus collect information for pain, temperature and crude touch via the spinothalamic tract. The ventral posteromedial nucleus receives sensory information from the face via the trigeminal nerve.
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Is it possible to distinguish between plants altered by classical genetics and those altered by modern techniques? if it is possible, how is it done?
Is it possible to distinguish between plants altered by classical genetics and those altered by modern techniques by looking under a microscope since DNA is microscopic.
Genetically modified organisms (GMOs):
A genetically modified organism (GMO) is an animal, plant, or microbe whose DNA has been altered using genetic engineering techniques.Using conventional breeding methods, people have been modifying the genomes of plants and animals for a long time.One of the most often used instances of genetically modified organisms is agricultural plants (GMOs). Increased crop yields, lower costs for food or drug production, less need for pesticides, improved nutrient composition and food quality, pest and disease resistance, greater food security, and medical benefits for the world's expanding population are a few advantages of genetic engineering in agriculture.More GMO research has the potential to assist numerous sectors. For instance, a number of microorganisms are being investigated as potential biodegraders and generators of clean fuel in the future.Learn more about the Genetically modified organisms (GMOs) with the help of the given link:
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A new neighborhood is built close to an old abandoned landfill. what impact(s) could this have on the land near the neighborhood
Toxic chemicals in trash can leak into groundwater and residents may be exposed to hazardous materials such as mercury. Unless they are stabilized, landfills may undergo severe shaking or soil liquefaction of the ground during an earthquake.
What is a landfill?
A place to dispose of refuse and other waste material by burying it and covering it over with soil, especially as a method of filling in or extending usable land.Some landfill sites are used for waste management purposes, such as temporary storage, consolidation and transfer, or for various stages of processing waste material, such as sorting, treatment, or recycling.What are the effects of a landfill?
Landfills have the potential to cause a number of issues. Infrastructure disruption, such as damage to access roads by heavy vehicles, may occur. Pollution of local roads and watercourses from wheels on vehicles when they leave the landfill can be significant and can be mitigated by wheel washing systems. Pollution of the local environment, such as contamination of groundwater or aquifers or soil contamination may occur as well.To learn more about landfill: https://brainly.com/question/16924501
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Cohesin is cleaved by the enzyme ___________, which is held in an inactive state by ___________ until it is degraded by the apc/c complex
The enzyme separase, which is kept dormant by securin until the APC/C complex degrades it, cleaves cohesin.
Discussion about the enzymes:
At the metaphase-to-anaphase shift, the cysteine protease separase cleaves the Scc1 component of cohesin, signaling the start of chromosome segregation. Prior to metaphase, securin, a firmly bound protein, inhibits separase by blocking the separase enzymatic activity with a pseudosubstrate motif. Therefore, we create a technique for creating cloned, securin-free human separase in order to study the affinity and specificity, and control of separase. We find that the Scc1 substrate has an LPE motif that is different from the catalytic domain and necessary for quick and precise substrate breakdown that uses this enzyme. Researchers show that the retained LPE motif found in securin prevents the separase from binding to the Scc1 LPE motif.Learn more about separase here:
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If an organism with a particular genotype fails to produce the corresponding phenotype, the organism is said to be ________ for the trait.
If an organism with a particular genotype fails to produce the corresponding phenotype, the organism is said to be non-penetrant for the trait.
Non- penetrance is an instance in which an individual has a trait-associated or disease-causing genetic variant, but the individual does not have the phenotype.
The individual in whom such a nonpenetrant mutant gene exists will be phenotypically normal but still capable of passing the deleterious gene on to offspring, who may exhibit the full-blown disease.
An example of non-penetrance is a woman with a BRCA1 pathogenic variant who lives to be elderly and never develops breast or ovarian cancer.
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During which process does mrna bind to ribosomes, allowing a protein to be made?
Answer:
Translation
Explanation:
During translation, mRNA arrives at a ribosome. Within the ribosome, the mRNA temporarily binds to tRNA's via complementation. The tRNA's are responsible for gathering the relevant amino acids and creating a new protein.
A tentative explanation based on observation is referred to as a hypothesis.
a. true
b. false
Which genetic change causes alterations in only one or a few nucleotide bases?
The genetic change causes alterations in only one or a few nucleotide bases in known as mutation.
A mutation is a change in a brief section of a genome's nucleotide sequence. Another frequently replaces one nucleotide in point mutations; other changes involve the insertion or deletion of one or more nucleotides.
Errors in DNA replication or the harmful effects of mutagens, such as chemicals and radiation, which react with DNA and alter the architecture of individual nucleotides, are the leading causes of mutations.
DNA repair enzymes are present in all cells and work to reduce the frequency of mutations. These enzymes reduce genetic information loss, double-strand break formation, and DNA crosslinking by repairing DNA damage.
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Bacteria that release a toxin that forms a pore in red blood cells leading to hemolysis are using ___ to gain access to the nutrients inside the erythrocyte.
Bacteria that release a toxin that forms a pore in red blood cells leading to hemolysis are using an alpha toxin to gain access to the nutrients inside the erythrocyte.
The best characterized and most potent membrane-damaging toxin of Staphylococcus aureus is α-toxin. It is expressed as a monomer that binds to the membrane of susceptible cells.
In humans, platelets and monocytes are specifically sensitive to α-toxin. They bear high affinity sites which allow the toxin to bind at concentrations that are physiologically relevant. A complex series of secondary reactions follow, leading to the release of eicosanoids and cytokines which in turn trigger the production of inflammatory mediators. These events cause the symptoms of septic shock that occur during severe infections caused by S. aureus.
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The energy content and biomass of ________ is lowest in any terrestrial food web.
The energy content and biomass of the top carnivore is the lowest in any terrestrial food web.
The terrestrial food web connects all land animals, from the smallest soil bacteria to the largest forest beasts. The relationships between herbivores (animals that consume plants), scavengers (animals that consume dead animals or plants), and decomposers are investigated by ecologists at SERC.
Write down the principal producers, herbivores, omnivores, and predators for the selected habitat to establish a terrestrial food web. Arrows that depict a predator and prey are used to connect them. The finished product can resemble a food web or map. The tundra, taigas, temperate deciduous woods, tropical rainforests, grasslands, and deserts are a few examples of the terrestrial food web.
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