If the nucleotide variability of a locus equals 0%, what is the g...

Question

If the nucleotide variability of a locus equals 0%, what is the gene variability and number of alleles at that locus?
a. gene variability=0%; number of alleles=0
b. gene variability=0%; number of alleles=1
c. gene variability=0%; number of alleles=2
d. gene variability>0%; number of alleles=2

Accepted Answer

Welcome back everyone. Our next question asks, what is the nucleotide variability in a gene that has 0% gene variability for a certain trait? So looking at this problem, let's think about what is gene variability? Well, that's when you have different alleles of a given gene in a population and these different alleles are a result of differences in the D. N. A sequence of that gene. So if we have 0% gene variability, that means we have only a single yeah, well of our given gene, and if we have a single alil, that means all individuals in the population have the identical D. N. A sequence. And if that's the case then there is no variability in the nucleotides making up this gene. So that means we have zero variability in our nucleotides, just like zero variability in our gene. So we're going to go look over at our answers And we see that we have choice a is 0%. So that is going to be our correct answer. 0% nucleotide variability. We'll see you in the next video

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