In: Biology
A DNA strand reads 5'AATCGTAGTC3'. The adjacent strand should read:
3'AATCGTAGTC5'
3'TTAGCATCAG5'
5'TTAGCATCAG3'
None of the above
All of the above
Here. the correct option is 3'TTAGCATCAG5'
Explanation -
According to the Watson and crick double-stranded of the DNA, DNA is made up of two strands, the two strands are antiparallel to each other that means that the polarity of one strand of the DNA is from 5' to 3' direction and the polarity of the other strand is from 3' to 5' direction. Also, the nucleotides are incorporated between the two strands. There are two nucleotides which form a base pair. The base pairing is done the basis of the base-pairing rules: the pyrimidines always binds to purines. So following are the possible base pairs:
Adenine and thymine
thymine and adenine
cytosine and guanine
guanine and cytosine
Thus, the given strand is in 5' to 3' direction, it's adjacent strand would be in 3' to 5' direction.
Please hit on the like button if you are satisfied with the answer. Give comments for further clarification/assistance. Thanks! Have a good day.