|
Which nitrogen base is absent in DNA? |
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|
(a) |
Adenine |
(b) |
Guanine |
(c) |
Uracil |
(d) |
Cytosine |
|
Which nitrogen base is absent in DNA? |
|||||||
|
(a) |
Adenine |
(b) |
Guanine |
(c) |
Uracil |
(d) |
Cytosine |