(a) Cytosine and uracil
(b) Guanine and Cytosine
(c) Adenine and Thymine
(d) Adenine and uracil
Answer- (a) Cytosine and Uracil
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(a) Cytosine and uracil
(b) Guanine and Cytosine
(c) Adenine and Thymine
(d) Adenine and uracil
Answer- (a) Cytosine and Uracil