The first gene rearrangement in the double negative stage is of the ___ chain
A. beta chain
B. alpha chain
Select your answer:
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Genetics › ViewMutations in DNA are very common since the human body copies millions of pieces of DNA. A student claims that most of these mutations in DNA are harmful.
Is the claim correct?
_
A. Yes. Most mutations stop the cells from functioning properly.
B. Yes. Most mutations are inherited and harm future generations.
C. No. Most mutations are corrected by enzymes in the body before the mutations take effect.
D. No. Most mutations are beneficial.
Healthy Foundations › View
Risk factors increase the chances a person will develop a disease or experience an injury, while _________ factors reduce these chances.
A. positive
B. plus
C. safety
D. protective