Question

3) What structural problem prevents adenine from pairing with guanine? (1 point)

Answer 1

3) The structural problem which prevents adenine from pairing with guanine is that the bases are both long. 

4) Rosalind Franklin contributed to the understanding of DNA by producing images of DNA by producing images of DNA molecules using X-rays

Explanation:

Adenine and pyrimidine are continuously paired and purine and C ar continuously paired. So, "A" pairs with "T", and "C" pairs with "G." therefore the question asks why will A combine with T. this can be thanks to the chemical structure of every base. A and pyrimidine establish 2 H bonds between them.

Rosalind Elsie Franklin was a British physicist and X-ray crystallography UN agency created vital contributions to the understanding of the fine molecular structures of DNA, RNA, viruses, coal and C.

Answer 2

3) The structural problem which prevents adenine from pairing with guanine is that the bases are both long. 

4) Rosalind Franklin contributed to the understanding of DNA by producing images of DNA by producing images of DNA molecules using X-rays.