<h3>Question from alternative source</h3>
Many different types of mutations can occur within the body. Cystic fibrosis is a genetic disorder that is caused by different mutations within the CFTR gene. One mutation in the CFTR gene that leads to cystic fibrosis causes translation to end earlier in the gene sequence. Which type of mutation causes this translation error that leads to cystic fibrosis?
- silent
- missense
- nonsense
- deletion
Answer:
Nonsense
Explanation:
Nonsense mutations describe mutations that produce a premature stop codon. The stop codons are UAG, UAA, and UGA. A way in which this could arise is, for example, if there was a substution of a nucleotide in the mRNA codon UAC (which codes for the amino acid Tyrosine) to the nucleotide UAG (which codes for a stop codon).
The translation machinery would reach this codon, which signals that translation should be terminated. This would mean that the mRNA would be released, and a truncated (shortened) version of the amino acid would be produced. This is likely to be non-functional, and may even be marked for destruction by the cell.
Answer:
See the explanation below, what is the question you intend to ask anyway?
Explanation:
- Meiosis transmit traits from one generation to the next. It the key process that brings genetic variation into the traits that offspring inherit from their parents. In the life cycle of an organism, meiosis is paired with the process of fertilization.
- Meiosis produces two daughter nuclei with the same number of chromosomes as the parent cell as each other.The chromosomes are re-grouped during meiosis to form new combinations of genes. Genetic reunion is very important as a source of genetic variation.
Answer:
C
Explanation: A fish can live in water and get carbon in the air bubbles but it's not enough carbon to thrive off of so the fish may need to eat other fish or plankton in the water. The second example A wolf would get its carbon from both the air and water but would still need extra carbons so that is why it would hunt a deer to consume its carbons. Also, the deer would get its carbons from the air, water, and grass. the grass would get its carbons from water and air. NOW DO YOU GET IT EVERYTHING IS CARBONS AND LIVES OFF OF THEM AND IT WILL ALWAYS BE THAT WAY!
According to the top down control, each trophic level is controlled by the very next trophic level. It says that predators control the population of prey.
Therefor the correct answer is D
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I guess because of concentration.....it stops !
