Question

Which of the following statements about hydrogen bonding between nucleotides on opposite strands is correct (choose all that apply). A always pairs with T G always pairs with T. C always pairs with G. A always pairs with C.

Answer 1

Solution:
(1),(3)
A base pairs with T C base pairs with G.DNA have double helix structure.In double helix structure,each chain contain many repeating unit.These repeating unit are known as nucleotides.Nucleotide consist of phosphate group,sugar and bases.These bases in include adenine, guanine, cytosine and
thymine.Among these bases,A base pairs with T and C base pairs with G.