Why can't guanine and thymine bond in dna.?
2015-06-04 1:21 am
I had this question on a test. I said because then the width of the DNa would be larger or smaller than 2nm and it has to be exactly 2nm. Is this right?
回答 (2)
2015-06-04 5:17 am
The usual conformations of those two nucleobases don't have atoms lining up to make good hydrogen bonds.
Your answer is wrong, since guanine is a purine and thymine is a pyrimidine.
Your answer is wrong, since guanine is a purine and thymine is a pyrimidine.
2015-06-04 1:33 am
I think the answer is that the molecules are like jigsaw puzzle pieces and only certain combinations can fit together.
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