living environment biology regents question?

caseycwrite

New member
Mustard gas removes guanine (G) from DNA.
For developing embryos, exposure to mustard
gas can cause serious deformities because
guanine
(1) stores the building blocks of proteins
(2) supports the structure of ribosomes
(3) produces energy for genetic transfer
(4) is part of the genetic code


ok i have regents tomorrow but idk what guanine is and what it does
 
Back
Top