Men must inherit colorblindness or hemophilia from their mothers because colorblindness and hemophilia are located on the X chromosome, which are inherited from their mother.
Answer: D. Extinctions occur at higher rates during times of ecological stress when populations and species are poorly adapted.
Answer:
C. keeping the strands separated during replication.
I think
Explanation:
<span>A book contains letters, just like the DNA. It's how the letters are arranged-into words in a book- that makes them mean anything. The same is true of DNA bases. It is how they are arranged that makes them significant.</span>
