Biosynthesis of many molecules in cells, and many modifications of macromolecules like proteins, rna, and dna require addition of single carbons. what is/are the major carrier/s of single carbons in cells?

a) s-adenosylmethionine
b) acetyl coa
c) tetrahydrofolate
d) a and b
e) a and c

The correct answer is option e) "a and c".

Explanation:

Single carbons are atoms needed for the biosynthesis of many molecules in cells, therefore the cells need a pathway to move group of atoms containing single carbons to make them available for the biosynthesis. S-adenosylmethionine and Tetrahydrofolate are two of the major carriers of single carbons in cells. S-adenosylmethionine (SAM) acts as a methyl (-CH3) donor and Tetrahydrofolate (THF) as a cofactor in enzymatic reactions.

children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.