Answer:
1. are heterozygous for the disease.
Explanation:
<em>Since the disease causes the death of chicks before hatching, it means that those with the disease cannot be found in the population. In order for the allele of the disease to be passed from generation to generation, there must be parent birds that are carrying the disease in heterozygous state.</em>
Option 1 is the correct option.
A,b I think should be the answer
Answer:
mutation
Explanation:
As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation.
Answer:What evidence supports the hypothesis of interbreeding between Neanderthals and Homo sapiens? DNA analysis shows that about 2% of the genome of most modern humans came from Neanderthals.
Explanation:please give brainliest