Answer:
Answer B
Explanation:
The traits have to have variation and get passed on to children other wise it cant happen
The answer to your question is answer choice .1 Independent variable.
Globin 1 and globin 2 genes of insects are understood to have diverged approximately 170 million years ago, through duplication, from a common globin gene ancestor. The two genes that code for haemoglobin have conserved regions; oxygen-binding and heme- regions. Globin 2 gene has lost the intron region that is still present in the globin 1 gene. The percentage divergence is 7.2% with 20 varying nucleotides.
i have the answer and it says C
