Answer:
chromosome
Explanation:
A chromosome consists of entire set of genes with in an organism’s total population.
DNA with is a chromosome is arranged in a discrete short and wide units. A chromosome consists of millions of DNA base pairs which consists of large number of genes. The chromosome structure comprises of double helix DNA wrapped around proteins. DNA with in chromosome provide basis for chromosome synthesis.
Answer:
3 yes because the nucleotides/nitrogen bases moved
I don't even know the answer sorry
Random changes in allele frequency in a population are usually called genetic drift. The reason why this is the answer is because it is a very specific word which is used to describe exactly that - random changes in allele frequency.
All the other cases; answers, here aren't correct and don't apply.