The genetic code is a set of rules used by the cells of living organisms to turn the information stored in DNA into proteins.
What is genetic code?Genetic code is a set of instruction used by living organisms to produce proteins. It is composed of a specific sequence of nucleotides, which are the building blocks of DNA and RNA. Genetic code is responsible for the expression of genetic information in living organisms by providing a blueprint for the synthesis of proteins. The four nucleotides (A, G, C, and T) make up the genetic code and form a triplet of three bases, known as codons, to represent specific amino acids. Each codon is used to build proteins, which are essential for the functioning of cells and organisms.
It involves translating the sequence of nucleotides in DNA into a sequence of amino acids in proteins. The code is composed of three-letter “codons” that correspond to a particular amino acid.
For example, the codon “ATG” represents the amino acid methionine, which is the starting point for every protein in the cell. The sequence UUUUUUUUUUUUUUU would be translated into three possible sets of amino acids: phenylalanine-phenylalanine-phenylalanine, leucine-leucine-leucine and isoleucine-isoleucine-isoleucine.
The genetic code is made up of 64 codons, each of which corresponds to a specific amino acid. The codons are arranged in three sets of triplets, each representing a different amino acid. For example, the codons UUU, UUC and UUA all represent the amino acid phenylalanine, while the codons CUC, CUC and CUA represent the amino acid leucine.
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Which term describes foreign molecules that activate the immune system? antigens phagocytes lymphocytes antibodies
Antigens are the foreign molecules that cause the immune system to become active.
What kind of foreign molecules cause the immune system to respond?Antigens are any substances that the immune system can recognise and that can afterwards cause an immunological reaction. When considered dangerous, antigens can cause the body to respond with an immune response (for instance, if they potentially spread disease).
What do you call the chemicals that activate the immune system?antigen, a substance that can cause lymphocytes, the body's white blood cells that combat infections, to get activated by the immune system. An antigen is something that causes your immune system to produce antibodies in response to it. This suggests that because your immune system does not recognise the chemical, it is making an effort to fight it.
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What weather system supplies fresh water to a fifth of the world's population?
The Asian monsoon weather system supplies fresh water to a fifth of world's population. Regions of South Asia experience heavy rainfall during monsoon season, which usually lasts from June to September.
What is freshwater water?Freshwater is defined as water with a maximum of 1,000 milligrams of dissolved particles per liter, most frequently salt. Earth's surface water bodies are usually regarded as renewable resources because they are a part of the water cycle, despite the fact that they rely heavily on other water cycle components.
What are the two primary kinds of fresh water?The lentic ecosystem and the lotic ecosystem are the two main subtypes of freshwater habitats. Ponds, marshes, ditches, and other still-water features make up lentic environments.
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How can a mutation be neutral?
A mutation can be neutral such that it has no change to the outcome of the individual which is therefore denoted as option B.
What is Mutation?This is referred to as an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA which could contain either DNA or RNA.
Neutral mutation involves the changes in DNA sequence that are neither beneficial nor detrimental to the ability of an organism to survive and reproduce which when observed there is usually no change to the outcome of the individual and is therefore the reason why option B was chosen as the correct choice.
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SOMEONE PLEASE HELP 20 POINTS BIOLOGY QUESTIONS DUE 3/2/23
Please answer question 25 and 26!! :)
The complementary strand would be TCGATAT and the area in the diagram on the right shows a genetic mutation where a C has replaced the original T at the third position of the 3rd codon.
What is mutation?Mutation is a process that results in a permanent change in the DNA sequence of an organism. Mutations can be caused by various factors, including errors during DNA replication, exposure to radiation or chemicals, and viral infections.
Mutations can occur in any part of the DNA sequence, including coding and non-coding regions, and can affect the structure and function of proteins. Some mutations can be neutral or even beneficial to an organism, while others can be harmful or cause genetic disorders. Mutations are a driving force of evolution, as they introduce new genetic variation into populations, which can be acted upon by natural selection.
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The diagram shown here represents a portion of a nucleic acid molecule. The part indicated by the arrow could be 1) phosphate 2) adenine 3) deoxyriibose 4) uracil
The part indicated is the phosphate molecule as has been shown.
What is the nucleic acid ?Nucleic acids are biological macromolecules that store and transmit genetic information in living organisms. They are composed of nucleotide building blocks, which consist of a sugar molecule (either ribose or deoxyribose), a phosphate group, and a nitrogenous base.
There are two types of nucleic acids: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is found primarily in the nucleus of cells and serves as the genetic material that stores the instructions for the development and function of all living organisms. RNA is involved in the synthesis of proteins and other cellular functions.
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8. A NONSENSE MUTATION occurs when a codon is changed to a STOP codon. Many proteins are thousands of amino acids in length. At the end of the gene, the cell reaches the stop codon. If a codon is changed to STOP, the building of the amino acid terminates and the protein is incomplete.
Why would a Nonsense mutation be less damaging if it occurred at the end of the gene rather than the beginning?
Nonsense mutations are point mutations that cause an mRNA codon to turn into a stop codon. If the mutation is at the beginning of the gene, it is more damaging because most of the protein is affected. The new molecule is shorter, quite different from the original one, and would not accomplish all its functions.
What is a nonsense mutation?
When a change occurs in a single base pair, it is known as a point mutation. Points mutations might be either silent, missense, or nonsense.
Nonsense mutations turn the mRNA codon into a stop codon, making the mutated protein reach its end before the original protein.
The length of the new molecule depends on where the mutation occurred.
If the mutation occurs at the beginning it is more damaging than if it occurs at the end.
If the mutation occurs at the end, most of the original protein can be synthesized before reaching the mutation point, getting to be highly similar to the original protein, and getting to accomplish most of its functions. If the mutation occurs at the beginning of the gene, the new protein is almost entirely different from the original one, very short, and with highly altered functions.You can learn more about nonsense mutations at
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What is the world's most venomous fish?
NOT STONEFISH !!!
the most poisonous fish in the world is the lionfish
Greetings from Turkey
Science test on cellular respiration
The correct answer is 2. Our bodies produce a lot of CO₂ and water as waste and that it needs to get rid of through breathing.
Why is breathing necessary?Breathing is necessary to bring oxygen into our bodies and remove carbon dioxide, which is a waste product of cellular respiration. When we eat food, it undergoes a process called cellular respiration, which releases energy in the form of ATP. This process requires oxygen and produces carbon dioxide as a waste product.
While we can store energy from food for later use, we cannot store oxygen or remove carbon dioxide from our bodies without breathing. Therefore, we need to breathe constantly to maintain the supply of oxygen and remove the waste carbon dioxide. In contrast, we can eat a few times a day because our bodies can store excess food energy as fat for later use.
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What are the results of natural selection? Select all that apply.
explain how the behaviour of centriole and spindle during mitosis is associated with the behaviour of chromosomes
Answer: Chromosomal behavior refers to the routine movement of chromosomes during cell division. During mitosis, chromosomes that are replicated align themselves along the equator of the cell to create a metaphase plate. After that, sister chromatids are pulled apart towards the opposite poles of the cells.
And when the chromosomes are condensing to undergo mitosis, the centrioles form the areas that the mitotic spindle forms. And those mitotic spindles go and attach to each of the chromosomes and pull the chromosomes to opposite ends of the cell to allow cytokinesis, then, to occur.
When you are swimming underwater, you often are able to hear sounds from the surface, even if they seem muffled. Make a diagram showing the path that a sound wave from above the surface would have to take to reach your ear if you are underwater. Label the media that the sound wave passes through.
Answer:
Certainly! Here is a diagram showing the path that a sound wave from above the surface would have to take to reach your ear if you are underwater:
Air → Water → Ear
Explanation:
As the sound wave travels from above the surface, it first passes through the air and then enters the water. When the sound wave enters the water, its speed changes because the density of water is greater than the density of air. This causes the sound wave to refract or bend as it enters the water. The sound wave then travels through the water until it reaches your ear.
The muffled quality of the sound is due to the fact that water absorbs sound more effectively than air does. This means that some of the energy of the sound wave is lost as it travels through the water, making the sound quieter and less clear when it reaches your ear.
I hope this diagram and explanation helps you understand how sound waves travel from above the surface to your ear when you are swimming underwater!
Can someone please help me!
33. A
34. C
35. B
What is an anabolic reaction?Anabolic reaction is a constructive metabolic reaction that involves the synthesis of larger molecules from smaller constituent parts, using ATP as the energy source for these reactions.
Autotroph is any organism that can synthesize its food from inorganic substances, using heat or light as a source of energy.
Acetyl-CoA represents a key node in metabolism due to its intersection with many metabolic pathways and transformations. Acetyl coA shuttles a 2C molecule from glucose into the citric acid cycle.
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As a plant stem grows longer, what happens to the cells located in the tip of the stem?
A. Unspecialized cells continue to divide as older cells grow larger and differentiate.
B. The cells fight off any bacteria and viruses that the plant stem encounters.
C. The old cells die off to make room for new cells
D. The cells harden to extend the stem and increase its strength
The right response is that unspecialized cells keep dividing as specialised cells get bigger and differentiate.
What use do stem cells serve in plants?Plant Stem Cells. Stem cells serve as a source of fresh cells for the development or replacement of specialised tissues. These cells must divide to replenish themselves in order to carry out their role, and some of their offspring will eventually differentiate to form new tissues.
What transpires to the cells near the stem's tip?The apical meristem at the apex of the stem produces new cells, and those new cells subsequently enlarge in length and volume in the area, which is how roots and herbaceous plant shoots grow in diameter and length.
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unlike estrogen, progestron inhibit FSH andLH. a)true b)false
Answer:
The answer is TRUE. :)
Explanation:
These studies showed that the effect of progesterone administered for periods of 1 to 6 h enhanced the secretion of LH and FSH whereas progesterone administered for periods beyond 12 h inhibited FSH and LH release by dispersed pituitary cells in culture.
100 points to whoever can solve the rest and marked as brainliest
Phenotype refers to the physical appearance or trait, while genotype refers to the genetic makeup or alleles of an individual.
What is a phenotype and genotype?Phenotype refers to the physical or observable characteristics of an organism, while genotype refers to the genetic makeup of an organism, which determines its inherited traits and potential characteristics.
Section A:
GPPGPGPPGPSection B:
11. Homozygous dominant
12. Homozygous recessive
13. Heterozygous
14. Homozygous dominant
15. Heterozygous
16. Not a genotype (number)
17. Homozygous dominant
18. Heterozygous
19. Not specified (incomplete)
Section C:
21. B (black fur dominant)
22. T (tall dominant)
23. Y (yellow dominant), G (green recessive)
24. P (purple dominant), W (white recessive)
25. L (long tail dominant), S (short tail recessive)
Section D:
26. BB
27. Pp
28. tt
29. Bb
30. WW
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How does the number of times the nostrils open and close in one minute compare with the number of times the frog’s throat moves up and down in one minute?
The number of times is the same when referring to frogs. The throat therefore travels up and down whatever many times the nostrils open and close in a minute.
In a frog, the neck moves up and down between 80 and 120 times per minute; these motions are referred to as oscillatory. The floor of the buccal cavity exhibits oscillatory motions (floor alternately lowered and elevated) when breathing through the buccopharyngeal cavity, maintaining the mouth, gullet, and glottis closed. The frog lowers the floor of its mouth, which causes the neck to widen and pull air into its mouth. Air then enters the larger mouth as the nostrils expand.
The air in the mouth is then driven into the lungs by contraction of the mouth floor as the nostrils close. The floor of the mouth glides downward, sucking air from the lungs and into the mouth to expel the carbon dioxide in the lungs. Eventually, the mouth floor is raised, forcing the air out of the nostrils, and the nostrils are opened.
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A fan pushes hot air out of a vent and into a room. The hot air displaces cold air in the room, causing the cold air to move closer to the floor. The hot air displacing the cold air is an example of ____ transfer by _____
The hot air displacing the cold air is an example of heat transfer by convection.
What is Convection?
Convection is a mode of heat transfer that involves the movement of fluid (such as a gas or a liquid) due to differences in density and temperature within the fluid. It occurs when warmer regions of a fluid move to cooler regions, carrying their thermal energy with them. This results in a transfer of heat from the warmer region to the cooler region of the fluid. Examples of convection include the movement of air in a room heated by a radiator or the transfer of heat by the circulating currents in a pot of boiling water.
As the hot air moves into the room, it displaces the colder air in the room, which is forced to move closer to the floor. This is because the hot air is less dense than the cold air and rises, while the cold air is more dense and sinks. As the hot air continues to rise and the cold air continues to sink, the process of convection helps to distribute heat throughout the room.
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What behaviours do humans use to find food, parent their offspring, and court each other?
Answer: For food they go to the store or supermarket. Parenting they breast feed and show love. Courting they date or propose marriage
Explanation:
A scientist was observing a specimen under a microscope. He obtained the specimen from pond water. He observed that the specimen was egg shaped, had Harry structures all over his body and was covered by a membrane. He also notice two nuclei in the specimens body to which phylum did the organism belong?
Based on the description provided, the organism belongs to the phylum Ciliophora, which includes a group of unicellular organisms called ciliates.
What are the characteristics of the Ciliates ?
Ciliates are characterized by the presence of hair-like structures called cilia that cover their body, and which are used for locomotion and feeding.
Ciliates also have a specialized organelle called a micronucleus, which is responsible for genetic exchange during sexual reproduction, and a macronucleus, which controls the cell's metabolism and other functions.
The egg-shaped structure and the presence of a membrane suggest that the organism is a single-celled eukaryotic cell, which is typical of ciliates. Ciliates can be found in a variety of aquatic environments, including ponds, lakes, and rivers, and play an important role in the ecosystem as decomposers and as a source of food for other organisms.
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5.3.5 Quiz: Climate How do data collected from ice cores provide evidence for climate change?
Answer:
Data collected from ice cores provide evidence for climate change by allowing scientists to reconstruct past temperature variations, atmospheric gas concentrations, and environmental conditions.
Explanation:
What bones are present? What is the MNI? What is the age of the individual(s) and how did you determine this?
MNI is the Minimum Number of Individuals required to test and validate an experiment or a case. It is used to determine the minimum number of people or individual involved in a case or an experiment.
What is the use of forensic anthropology?In forensic anthropology, MNI is used to determine the least number of people required to account for the bones present. The MNI chosen is not necessarily will be right while solving a case. The investigators might night to consider different set of individuals.
The MNI ought to be changed in light of the revised inventory. Since 4 of the 6 femora are right sided, they would belong to different individuals, so the MNI would now be stated as 4.
Therefore, the sheriff would be told that the forensic anthropology of suspecting 22 individuals is very narrow, though not impossible.
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Photo circulatory respiratory poroject
Answer:
Emotional support
Explanation:
HELP ASAP!!!
Label the illustrations of the four different types of joints. Use these choices:
Elbow has the Hin/ge joints.
Shoulder has the Ba/ll and Socket Joints.
Wrist has the Gli/di/ng Joints.
Neck vertebrate has the P/iv/ot Joints.
What are the different types of joints?Joints are the areas where two or more bones come together. There are four main types of joints in the human body:
Hin/ge Joints: Hin/ge joints are the most common type of joint in the body and are found in the elbow, knee, and fingers. They allow movement in only one direction, like the opening and closing of a door.Ball and Socket Joints: Ball-and-socket joints are found in the hip and shoulder. They allow for a wide range of motion in all directions, including rotation.Pivot Joints: Pivot joints are found in the neck and allow for rotation, such as when you turn your head from side to side.Gli/ding Joints: Gliding joints are found in the wrists, ankles, and spine. They allow for movement in multiple directions, but the range of motion is usually limited.Read more about joints
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who is the first doctor in the world
Answer:
His name was Hippocrates of Kos. Hippocrates is believed to have laid the foundation stone of what is now known as medicine that too at a time when medical treatment was not only an inconceivable thought, but diseases were seen to be superstitious in nature and was believed to be a result of punishment by the gods.
HELPP PLEASEEEEEEEEE
Answer:
Explanation:
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Jessica made a list describe Earth’s hydrosphere.
1. Forms a thin layer
2.Covers majority of lithosphere
3.Composed primarily of rock
4. Interacts with the atmosphere
5. Is brittle and rigid
Which items from Jessica’s list are incorrect?
A. 1 and 5
B. 2 and 3
C. 2 and 4
D. 3 and 5
SCIENCE PLEASE HELPP FASST PLEASE PLEASE
Answer: Im pretty sure the answer is B because fish dont need oxygen and there is no oxygen tank
Hope this helps!
which kingdom Lactobacillus
Answer:
Lactobacillus are in the kingdom bacteria.
Lab: Effects of Human Activity on Freshwater Resources lab report PLEASE!!!!!!!!!!
Answer: Pollutants change the pH of freshwater sources like lakes and groundwater. - When the quality of water changes, water may become unusable. - The appearance of water is not always a sign of its quality.
Explanation: Humans directly change the dynamics of the water cycle through dams constructed for water storage, and through water withdrawals for industrial, agricultural, or domestic purposes. Climate change is expected to additionally affect water supply and demand.
PLEASE ANSWER THIS SUPER FAST
Answer: The answer is B
Hope this helps!
