If DNA is the ladder, the uprights (sides) are made of?

Question

A. sugar

B. phosphate groups

C. alternating sugar and phosphate groups

D. nitrogenous base pairs

E. none of the above

Answer 1

you really put a lot of efforts in copying the questions from your homework without even reading them.

the answer is C. alternating sugar and phosphate groups

Answer 2

C

Answer 3

DNA is made up of phospate group,the ribose sugure &the nitrogenous base pairs which are adenine,thimine,guanine & cytocine so the answer is c  

Answer 4

The DNA molecule is made up of,what is known as,a sugar-phosphate backbone (i.e) there are alternate sugar and phosphate units joined together to form a backbone.This is the upright of the ladder.

Answer is C.

The bases projecting at right angles to the backbone are the "steps" of the ladder.

Good Luck.