Which of the following nitrogenous base is NOT found in RNA?
a) Adenine (A)
b) Guanine (G)
c) Uracil (U)
d) Thymine (T)
RNA is made up of ……..types of deoxyribonucleotides.
a) two
b) three
c) four
d) five
Explanation: Adenine ribonucleotide, Guanine ribonucleotide, Thymine ribonucleotide and Cytosine ribonucleotide
What is/are the difference/s between DNA and RNA?
a) in DNA the pentose sugar is Deoxyribose while in RNA is ribose
b) DNA is double stranded molecule while RNA is single stranded
c) DNA has Thymine (T) base while RNA has Uracil (U) base
d) all of these
There are ……..types of RNA.
a) two
b) three
c) four
d) five
Explanation: mRNA, tRNA and Rrna
rRNA is synthesized in……..
a) nucleolus
b) nucleus
c) RER and SER
d) cytoplasm
Which of the following is true for nucleic acids………..
a) they are also called nucleotides
b) they do not contain purines
c) they are polymers
d) both DNA & RNA contain uracil
