The genetic code is based on an alphabet consisting of only four types of……..
a) amin1o acids
b) nucleosides
c) nucleotides
d) fatty acids
Explanation: these are Adenine (A), Guanine (G), Thymine (T) and Cytosine (C)
Which of the following contains double ringed structure?
a) adenine
b) thymine
c) cytosine
d) uracil
Which molecule contains the genetic code?
a) DNA
b) rRNA
c) mRNA
d) tRNA
