Question

I think it’s d maybe
Mustard gas removes guanine from DNA. For developing embryos, exposure to mustard gas can cause serious because guanine

a

directhy

Answer 1

Mustard gas removes guanine from DNA. For developing embryos, exposure to mustard gas can cause serious deformities because guanine

a directly causes mutations in DNA.

b stores the building blocks of proteins. produces energy for DNA replication.
C produces energy for DNA replication
d is one of the four nitrogenous basing in DNA.

Answer 2

b stores the building blocks of proteins.