Tail length in mice varies within a population. Scientists observed change in the distribution of tail lengths in a mouse population over time. At the genetic level, what has most likely happened to the allele for the shortest tail lengths? Question 1 options:

The allele changed form being autosomal to being sex-linked.

The allele began to code for long tails lengths instead of short ones.

The allele changed from being dominant to being recessive

The allele became less frequent than the alleles for longer tail lengths.