The question is incomplete. The complete question is as follows:
Which of the following mutations is most likely to cause a phenotypic change?
A) a duplication of all or most introns
B) a large inversion whose ends are each in intergenic regions
C) a nucleotide substitution in an exon coding for a transmembrane domain
D) a single nucleotide deletion in an exon coding for an active site
E) a frameshift mutation one codon away from the 3' end of the nontemplate strand
Answer: D) a single nucleotide deletion in an exon coding for an active site
Explanation:
Deletion or insertion of a single nucleotide in an axon coding for an active site is called frameshift mutation.
The sequence of codons is read during translation, in order to synthesize a amino acids chain and form a protein from the nucleotide sequence. Frameshift mutations occur when the usual codon sequence is broken by the deletion or addition of one or more nucleotides. For example, if only one nucleotide is removed from the axon sequence during the RNA splicing process, then there will be a disrupted reading frame for all codons before and after the mutation. This may result in several incorrect amino acids being introduced into the protein. Disruption in protein sequence will cause phenotypic change.
Hence, the correct option is D) a single nucleotide deletion in an exon coding for an active site
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The answer is b because water has a PH of 1 and lemon juice is very acidic
Answer:
Variables that can cause the ocean water salinity to decrease include the melting of glaciers, the inflow of river water, and rainfall.
Explanation:
ATP is broken down to ADP and Pi when energy is required to carry out the metabolic process. ATP is also released during the metabolic process.
<u>Explanation:</u>
The pumping of hydrogen ions across the inner membrane creates concentration gradient where there is higher concentration of the ions in the intermembrane space than in the matrix. This chemiosmotic gradient causes the ions to flow back across the membrane into the matrix, where their concentration is lower.
ATP synthase behaves as a channel protein thereby helping the hydrogen ions cross the membrane. It also has the ability to act as an enzyme, forming ATP from ADP and inorganic phosphate.
After passing through the electron transport chain, the used electrons joins with oxygen to form water. That is why oxygen is required. In the absence of oxygen, this process will not occur.
Answer:
option A
Explanation:
Energy gotten from the prey will be transferred up to the food chain.
so directly or indirect, all other members of the food depend on this energy
