<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.
The substance that yields a Cation plus the Hydroxyl ion in water is a Base.
A Cation is a positively charged ion. A Hydroxyl ion is an ion with a negative charge and is made up on one oxygen atom and one hydrogen atom. Bases are substances that promote chemical reactions. Dissociation is a process in which ionic compounds split into smaller particles.
<span>In this case, the base acts by dissociation to yield a Cation plus a Hydroxyl ion in water. </span>
Answer:
based on the passage, the ancient greeks believed that their gods had the power to control over people's lives and were overall very powerful.
Explanation:
Answer:
C3 photosynthesis produces a three-carbon compound via the Calvin cycle while C4 photosynthesis makes an intermediate four-carbon compound that splits into a three-carbon compound for the Calvin cycle. Plants that use CAM photosynthesis gather sunlight during the day and fix carbon dioxide molecules at night.
Explanation:
