A) A - Uracil; B - Cytosine
B) A - Cytosine; B ? Uracil
C) A - Thymine; B - Cytosine
D) A - Thymine; B ? Uracil
Correct Answer: B
Solution :
Cytosine is a pyrimidine derivative discovered by Albert Kossel in 1894 when it was hydrolysed from calf thymus tissue.You need to login to perform this action.
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