An intron is a segment of RNA found in pre-messenger
RNA (pre-mRNA) molecules. It must be removed to make
the mRNA molecule functional. Some introns are capable
of catalyzing the reaction that removes them from larger
RNA molecules.
What is the intron acting as in this scenario?
A. A carbohydrate
B. A lipid
C. An enzyme
D. A membrane
Answers
The intron acting in this scenario is A carbohydrate. Option A.
The most important function of introns is to allow alternative splicing, allowing multiple proteins to be made from a single gene. Some introns are spliced and further processed to encode functional RNA molecules. The first stage is the genomic intron, which is the DNA sequence of the introns.
Introns are regions within a gene that do not remain in the final mature mRNA molecule after transcription of the gene and do not code for the amino acids that make up the protein encoded by that gene. Most protein-coding genes in the human genome consist of exons and introns. Introns are nucleotide sequences in DNA and RNA that do not directly code for proteins and are removed during mRNA maturation by RNA splicing during the precursor messenger RNA stage.
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Answer:definitely enzyme!
Explanation:just took the test - verified!
Related Questions
Which of the following is likely to increase in livestock as the ozone layer is increasingly depleted?
A. skin cancer
B. kidney disease
C. brain cancer
D. heart disease
Answers
Fern plants can reproduce asexually using two processes: One way is by growing an offspring from its roots. Another way is by releasing reproductive
cells into the air that will later grow into new plants. Which terms define these two processes? (1 point)
O vegetative reproduction and spores
fragmentation and vegetative reproduction
spores and budding
O budding and agamogenesis
Answers
The process whereby Fern plants reproduce asexually using two by growing an offspring from its roots or by releasing reproductive
cells into the air that will later grow into new plants are vegetative reproduction and spores; option A.
What is asexual reproduction?Asexual reproduction is a form of reproduction in which only one parent is involved in the production of offspring.
Asexual reproduction does not require the fusion of the male and female gametes to form an embryo which then develops into a mature offspring.
Hence, asexual reproduction is the most dominant form of reproduction in living organisms as it requires less energy or time for the production of offspring.
Some forms of asexual reproduction are:
vegetative reproduction - the offspring is produced from a part of the parent as an offshootSpore formation - reproductive cells are produced which are then dispersed and grow during favorable times.Learn more about asexual reproduction at: https://brainly.com/question/12176249
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Answer:
a :)
Explanation:
list 10 plant tissue and their location
Answers
The plant tissues are the parenchyma, collenchyma, pith, protoxylem, meta xylem, xylem, phloem, sclerenchyma, cortex, and epidermis.
What are the uses of plant tissues?
Aid in the mechanical strength of organs. They contribute to the organs' elasticity and flexibility. They divide to create new cells and aid in plant growth. They contribute to cellular metabolisms such as photosynthesis, regeneration, and respiration.
The following are the locations of different plant tissues
Parenchyma - soft plant partssclerenchyma- in the stems around the vascular bundles, leaf veins, and the hard covering of the fruit, seed, and nutscollenchyma - stems and leaves of mature herbaceous plantspith- the center of the stemprotoxylem- It is present on the periphery of the stem and inside of the root.meta xylem- It is present on the inside of the stem and periphery of the roots.xylem - a major part of a mature woody stem or rootphloem- in the center of the vascular bundle.cortex- between the epidermis (surface cells) and the conducting or vascular tissues of stems and roots epidermis- the outer layer of all plant organsTherefore, plant tissues are spread all over the plant and help in various functions.
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PLS Help!!!!! This is not for a test it is for a checkup!!!!
Answers
Answer:
Im not 100% sure but I think its A, B, and C
Explanation:
Have an AWESOME day! :)
How natural selection influences inheritance of traits ?
Answers
Natural selection on a single-gene trait can result in changes in allele frequencies and, as a result, evolution. This type of evolution can also occur in bacteria.
How does natural selection affect traits?These advantageous traits become more common in the population over time. Beneficial traits are passed down through generations through the process of natural selection. Natural selection can result in speciation, which occurs when one species gives rise to a new and distinct species.Natural selection can affect traits determined by alternative alleles of a single gene as well as polygenic traits (traits determined by many genes). Natural selection on multiple-gene traits can take the form of stabilizing selection, directional selection, or disruptive selection.Natural selection on a single-gene trait can result in changes in allele frequencies and, as a result, evolution. This type of evolution can also occur in bacteria.To learn more about : single-gene trait
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Describe the attributes of deep water and discuss the challenges and advances associated with deep water
exploration.
Answers
The biggest barrier to underwater exploration is the rise in pressure with increasing water depth. A person would pass out from increased pressure at such a deep depth of water (lose consciousness).
What does water exploration involve?Drilling-assisted ground water exploration is one of the Central Ground Water Board's (CGWB) main tasks, with the goal of finding aquifers in various hydrogeological settings and establishing hydraulic characteristics.
Why do we use groundwater exploration?In order to comprehend the hydrologic cycle, know the quality of the groundwater, and determine the nature, quantity, and type of aquifers, groundwater exploration is the research of subsurface formations. There are various techniques for discovering groundwater. One technique for investigating groundwater is surface geophysical approach.
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Definicion de ecosistema
Answers
Evaluate the following statements regarding seeds and select which of them are true.
a) They contain an embryo
b) They contain nutritive tissue for the embryo
c) They are also referred to as spores
d) They consist entirely of diploid cells.
Answers
The following statements regarding the seeds are true:
a) They contain an embryo
b) They contain nutritive tissue for the embryo
d) They consist entirely of diploid cells.
Embryo- The embryo would be the fertilized ovule, a young plant that, under ideal conditions, would develop into a new plant. The embryo of a monocotyledon contains a single cotyledon or seed leaf; that of a nearly all dicotyledon possesses two, and that of a gymnosperm contains two or even more.
Tissue- A tissue would be a cluster of cells with comparable structures as well as roles. A nonliving material called the intercellular matrix fills the space between both cells. Some tissues may have a lot of this, while others may not.
Therefore, the correct answer will be option(a), option (b) and option(d).
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When you exhale (breathe out) you expel carbon dioxide. Where does the carbon in carbon dioxide come from?
Answers
Answer: every atom of carbon in the exhaled carbon dioxide comes from food that was recently produced by photosynthesis. is.
Explanation: Everything we eat, save for a few inorganic components like salt, was in some way produced by photosynthesis
Mel started feeling sick at school and the
school nurse called her mom and suggested
that they come by the clinic. Mel tested
positive for the Influenza virus. She will need to
allow her body to fight off the infection. In
order to fight it, she would need to make
antibodies.
Which macromolecule are antibodies?
List (IN ORDER) at least 4
organelles that this
macromolecule will pass
through before being
released from the cell.
Answers
Antibodies are made up of protein macromolecules composing of 4 glycoproteins. Proteins are moved in vesicles from the endoplasmic reticulum to the Golgi apparatus, where they undergo additional processing and sorting before being sent to lysosomes, the plasma membrane, or secretion from the cell.
Protein sorting and targeting to the correct locations are significant undertakings because of the intricate internal structure of eukaryotic cells. While translation is still active, the first stage of protein sorting takes place. On ribosomes that are attached to the endoplasmic reticulum membrane, numerous proteins that are destined for the endoplasmic reticulum, the Golgi apparatus, lysosomes, the plasma membrane, and secretion from the cell are created. The endoplasmic reticulum, where protein folding and processing occur, receives the polypeptide chains as translation continues.
So, the antibodies have to go through endoplasmic reticulum, Golgi apparatus , lysosomes and then through plasma membrane before being released from the cell.
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What is one very significantdisadvantage of biomass energy?A. It is a renewable energy source.B. It is relatively inexpensive.C. It can cause over-farming of land.D. It can reduce trash and waste in landfills.
Answers
As we know, biomass energy is the energy that is generated by a living organism or by the processing of them. In the present case, it is referring t the second case (processing of living organisms) mostly focused on plant-based energy. Therefore having this in mind we can proceed to analyze the following sentences
A.- Organisms can regenerate and renovate so this doesn't suppose a disadvantage.
B.- This must be approached carefully, it depends on the source, but in crop farming, we could say that it is correct, so it wouldn't imply a disadvantage.
C.- This is a highlight that crops have, as well as cattle, often require large amounts of terrain and overexploit soil to cover demand, so this is a disadvantage.
D.- This is mostly true, as is organic matter it will wilt and disintegrate leaving few residues.
1. In humans, normal pigmentation is due to a dominant gene (A), albinism to its recessive
allele (a). A normally pigmented man marries an albino woman and their first child is an
albino. What are the genotypes of these three persons? If they have several other children,
what are the probabilities that they will be: albino, normal pigmentation, carriers for
albinism?
Answers
Answer:
The mother has a genotype of aa, the father has a genotype of Aa and the child has a genotype of aa.
Explanation: If the couple decides to have more children the children would have a 50% 50% chance of being albino. Every child they have will be a carrier of the recessive gene gained from their mother. The children would either have a genotype of Aa or aa. Also, the father has a heterozygous genotype. He also is a carrier of the recessive gene since their first child was albino. You cannot be made albino unless both alleles from your parents are recessive and even though the father is not albino (because he had the dominant allele A), he had an albino child therefore making him a carrier of the allele a. Please let me know if you require further explanation!
Create a food web using organisms found in the Tampa Bay area. The food web can be terrestrial (land), aquatic or a combination of the two. It should include a minimum of 10 organisms and show multiple food chains.
Answers
Write down the principal producers, herbivores, omnivores, and carnivores for the selected ecosystem in order to develop a food web.Arrows that depict a predator and a prey are used to connect them.The finished product can resemble a real web or map.
What is food web?
A hawk consumes a snake after it has consumed a frog, a frog after it has consumed a grasshopper, and so on.A food web demonstrates the numerous ways in which plants and animals are interconnected.Different species of organisms can interact in a variety of ways.They can be rivals or symbionts—long-term allies with a strong relationship.Or, of course, they may do what we frequently see in nature documentaries: one of them could chomp down on the other!In other words, they could be a link in a food chain.A food chain in ecology is a group of creatures that consume one another to transfer nutrients and energy from one to the next.If you ate a hamburger for lunch, for instance, you might be associated with the food chain grass right arrow cow right arrow human. But what if your hamburger also had lettuce on it?In that instance, you are also a link in the lettuce-to-human-right-arrow food chain.We can't always properly represent what an organism—such as a human—eats with one straight pathway, as this example demonstrates.A food web that consists of numerous intersecting food chains and reflects the various items an organism can eat and be eaten by may be useful in scenarios like the one described above .We may now examine the flow of energy and nutrients within an ecological community.Let's start by looking at a food chain and a few who-eats-who interactions.A food chain is a group of organisms that are consumed in a linear order, passing nutrients and energy along the way.Let's examine the components of a typical food chain, working our way up from the producers at the bottom.The main producers are found at the bottom of the food chain.Autotrophs, or primary producers, are often photosynthetic organisms like plants, algae, or cyanobacteria.Primary consumers are the organisms that devour primary producers.The majority of consumers are typically plant-eating herbivores, though they can also be algae or bacterium eaters.Secondary consumers are the creatures that consume the primary consumers.Secondary consumers are typically carnivores who devour meat. Tertiary consumers are the organisms that consume secondary consumers.These are carnivores that consume other carnivores, like large fish or eagles.There are additional layers in some food chains, such as quaternary consumers, which are carnivores that eat tertiary consumers.Apex consumers are the organisms at the very top of a food chain.The graphic below shows instances of various levels.Mollusks, who are the principal consumers, devour the green algae, which are the primary producers.The slimy sculpin fish, a secondary consumer, then eats the mollusks for lunch. The sculpin fish is subsequently devoured by a larger fish, the Chinook salmon, a third consumer.Decomposers are occasionally regarded as a separate trophic level.Collectively, they consume decomposing plant materials, a squirrel's half-eaten corpse, or the remains of an eagle that has died. They also consume waste products from organisms at many lower trophic levels.The decomposer level resembles the traditional hierarchy of primary, secondary, and tertiary consumers in certain ways.To learn more about food web refer
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Which of the following is NOT an essential part of turning nitrogen into a form usable by animals?A. Nitrogen fixing bacteriaB. Denitrifying bacteriaC. Nitrifying bacteria
Answers
The correct answer is B. Denitrifying bacteria. This bacteria convert nitrous compounds to molecular nitrogen, which is not usable for animals, it is only usable for certain type of bacteria.
Many animals travel in groups, while some live and travel alone. Scientists are interested in whether traveling in groups or individually makes a difference in the time it takes animals torecognize and escape a predator. Scientists observed three different populations of animals and recorded the response time to predators for animals traveling individually and in groups.The average response time to predators for these different animals are presented below.Which conclusion is best supported by the data shown in the graph?A.Animals traveling in groups respond faster to predators, allowing them to outcompete others for food more successfully.B.Animals traveling individually respond faster to predators, allowing them to outcompete others for food more successfully.C.Animals traveling in groups respond faster to predators, allowing them to escape more successfully.D.Animals traveling individually respond faster to predators, allowing them to escape more successfully.
Answers
Consider the following diagram:
Defense mechanisms against predation are evolutionary adaptations that serve animals, potential prey, in their fight against predators. One of the defense mechanisms is to travel in groups. For example, sometimes fish travel together to avoid predators such as sharks, killer whales, or dolphins. In fact, the graph shows that groups respond faster to predators.
According to this information and the given diagram of the problem, we can conclude that the correct answer is:
AnswerC. Animals traveling in groups respond faster to predators, allowing them to escape more successfully.why do trees growing in a forest not grow to close together
Answers
When trees are close together, a canopy of leaves forms overhead that filters sunlight, making it difficult for both trees and the plant life below to get the sunshine they require.
Describe forest:A big region with trees is generally referred to as a forest. Boreal, tropical, and temperate forests are the three main types that exist. According to experts, these woods make up around one-third of the surface of the planet. Eastern North America and Eurasia are covered with temperate forests.
What grows in a forest?The forest floor can be farmed for culinary and medicinal herbs, roots, mushrooms, landscaping or florist items like flowers and ferns. The canopy trees produce lumber, nuts and fruits like pecans or persimmons; the middle layer may be filled of may haw, vines, berries, or ornamentals.
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A plant undergoes high rates of photosynthesis under red light (620-750nm wavelengths) and blue light (450-495nm wavelength). However under green light (550 nm wavelength) rates of growth are very low. Explain.
→
Answers
A plant undergoes high rates of photosynthesis under red light (620-750nm wavelengths) and blue light (450-495nm wavelength). However, under green light (550 nm wavelength) rates of growth are very low. This is because they are themselves green due to the presence of the pigment Chlorophyll.
Green light is reflected back as compared to other colors. this is due to the presence of the green pigment chlorophyll. Since most of the light is reflected back, green light isn't proper for the growth of plants.
In which color range, Photosynthesis takes place at the maximum amount?
The wavelength range of photosynthetically active light is 400–700 nm (PAR). Chlorophyll absorbs light most efficiently in the red and blue portions of the spectrum. So the red and blue light of the visible spectrum has the highest rate of photosynthesis.
Therefore, the rate of growth is lowest in green light.
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If sally has earlobes that are attached to the side of ger head Sally has two____ that causr her to have attached earlobe. Sally inherited these from_____
Answers
If sally has earlobes that are attached to the side of her head Sally has two alleles that cause her to have an attached earlobe. Sally inherited these from genes.
Attached earlobes are not uncommon but are uncommon. This type of earlobe is small and attached directly to the side of the head. This type of leaf structure formation is due to the absence of a dominant allele on the chromosome. Parents with earlobes can have children without earlobes. and vice versa.
Cases like yours may arise because whether or not you have earlobes isn't a simple genetic trait. This child may have sticky earlobes. Of course, given all this, two parents with a recessive trait cannot have a child with a dominant trait. is. The free earlobe is dominant and the attached earlobe is recessive. Homozygous recessive means that the organism has two copies of the recessive allele.
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With which of the following is MALT least associated?
a. Mucosa.
b. Erythropoiesis.
c. Phagocytosis.
d. Immune Function.
e. Erythropoiesis.
Answers
Mucosa-associated lymphoid tissue (MALT) is least associated with (b) Erythropoiesis.
A network of lymphoid cells aggregates, and the tissue known as mucosa-associated lymphoid tissue (MALT) is found in the submucosal layers of the gastrointestinal, vaginal, respiratory, and urinary tracts, as well as the skin, tonsils, eyes, thyroid, breasts, and salivary glands. MALT (mucosa-associated lymphoid tissue) stimulates immunological responses to antigens encountered throughout all mucosal surfaces. Secondary immune tissues called MALT inductive sites serve as locations for antigen collection and the onset of immunological reactions.
Erythropoiesis is the production of red blood cells. It is the development of erythropoietic stem cells into mature RBCs stimulated by a decrease in the oxygen level in circulation detected by the kidneys, which then secretes the erythropoietin hormone. Thus, MALT is least associated with erythropoiesis.
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who invented the punnet square
Answers
Answer:
Reginald Punnett was one of the first English geneticists. Punnett devised the "Punnett Square" to depict the number and variety of genetic combinations.
Explanation:
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What are the functions of the different body systems and how do they interact
with each other?
Nervous System-
Digestive System-
Circulatory System-
Respiratory System-
Answers
Digestive- gets you the nutrients needed to survive
Circulatory- pumps blood to and from your heart to keep all of your organs alive via oxygen transfer.
Respiratory system- turn’s carbon dioxide into oxygen
They all interact by working with each other to achieve homeostasis and keeping your body alive! I hope this helped <3
Autoimmune diseases are (select all that apply)Select one or more:a.can only affect one organb.often difficult to diagnosec.often difficult to treatd.can have widespread effects on the the whole body
Answers
Autoimmune diseases are:
• Often difficult to diagnose
,• Often difficult to treat
,• Can have widespread effects on the whole body
Scenario: In a population of hawks living in a forest, there are three genetic types: long wings, medium wings, and short-winged.Initial population makeup: 25% long wings, 50% medium wings, 25% short wings.Over time the forest environment changes. New species of shrubs and trees with dense branches show up and become abundant. Hawks with shorter wings can fly more safely in the tight spaces; those with longer wings are more likely to be injured and have a harder time catching birds and mice when they scramble under bushes.1. Is this an example of mutation, selection, genetic drift, or gene flow?
Answers
In this case, we can see that the environment is exerting a selective pressure over a certain phenotype, that is short wings, it does not say if medium wings are thriving in this environment or not, however, we know that those with long wings are having difficulties meanwhile short wings are successful, therefore we can see that this is selection.
44. Which of the following organisms would be considered an autotroph?A. mouseB. oak treeC. human
Answers
As we know an autotroph is an organism that is capable to elaborate its own food, like is the case of plants, from light and carbon dioxide they generate glucose, therefore humans and mouses are discarded as both organisms are heterotrophs, therefore the correct answer is option B.
What level or levels of protein organization are associated with: order aminoacids are attached to each other() A. secondaryB. primaryC. secondary and tertiaryD. quartinaryE. tertiary
Answers
The level of organization associated with amino acid order is primary (option B).
The secondary level of organization describes how this amino acid chain is folded, the most common organization srtuctures are alpha helix or betta sheet.
Tertiary level of organization is the result of interaction between secondary structures.
Lastly, quartinary level of organization is about interactions between peptides (other amino acid chain).
What’s the correct answer answer asap for brainlist
Answers
Answer:
it's phosphorus and nitrogen so answer should be (B)
A student produces a labeled drawing of a virus for a presentation. The student states that the capsid has a function similar to the nuclear membrane found in animal cells.
Which of these describes the similar functions of capsids and nuclear membranes?
Answers
The similar functions of capsids and nuclear membranes Both protect genetic information for the structures.
The main similarity and function of capsid membranes and nuclear membranes is to provide protection. Most viruses use the canonical nuclear pore complex NPC to import their genome into the nucleus. The viral capsid which is larger than the nuclear pore is degraded before or during passage through the NPC allowing entry into the core of the genome.
Virus structure. In simpler viruses, the virion consists of a single nucleic acid molecule surrounded by a protein shell the capsid. Together the capsid and its encapsulated nucleic acid form a nucleocapsid. These barriers include the plasma membrane and underlying cell cortex a very dense cytoplasm with severely restricted molecular transport reviewed and access to sites of viral replication or assembly. Includes other membranes that must be passed through to obtain or obtain.
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what percent of the acacia trees energy will be transferred to the giraffe?
Answers
The giraffe only receives 10% of the energy from the acacia tree because the other 90% was used in cellular respiration.
Each level only retains 10% of the original 100% of energy because no matter what animal species it is, it will use up 90% of the energy for cellular respiration.
Both aerobic and anaerobic respiration yield a net gain of ATP molecules to be used as energy for living things. The processes of _________ would yield the highest number of ATP.
Responses
A. Glycolysis
B. fermentation
C. oxidative phosphorylation (electron transport chain)
D. the Krebs Cycle
Answers
Answer: C. oxidative phosphorylation (electron transport chain)
Explanation:
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Why it is incorrect to say that humans evolved from chimpazees? What would be a more accurate description?
Answers
To say that humans evolved from chimpanzees is a common misconception of evolution caused by the confusion between Lamarckism and Darwinism.
Lamarck stated that evolution followed the chain of being and eventually the organisms would evolve into more "complex" beings. We know now that evolution doesn't work that way.
It would be more accurate to say that humans and chimpanzees come from a common ancestor because the species we can actually find are not transforming into others that also exist. If we map the species, they would be at the points of tree branches and the common ancestor between them would be in the nodes.
