Okazaki fragments are proportions of DNA

(1) synthesized on the leading strand of DNA replication fork

(2) synthesized on the lagging strand of DNA replication fork

(3) produced during the digestion of DNA by restriction endonucleases

(4) none of the above

Transcription in case of eukaryotes takes place in

(1) nucleus

(2) nucleolus

(3) cytoplasm

(4) ribosome

Which of the following banding group is used in staining both plant and animal chromosome?

(1) C-group

(2) G-group

(3) R-group

(4) N-group

Which of the following is nonsense codon?

(1) UAG

(2) UAA

(3) UGA

(4) all the above

Frameshift mutation occurs when

(1) base is substituted

(2) base is deleted or added

(3) anticodons are absent

(4) none of these

Wobble hypothesis was given by

(1) R.W. Holley

(2) M. Nirenberg

(3) H.G. Khorana

(4) F.H.C. Crick

Which one of the following pairs of terms / names mean one and the same thing?

(1) Gene pool - genome

(2) Codon – gene

(3) Cistron – triplet

(4) DNA fingerprinting - DNA profiling

What is true about tRNA?

(1) It binds with an amino acid at it 3’ end

(2) It has five double stranded regions

(3) It has a codon at one end which recognizes the anticodon on messenger RNA

(4) It looks like clover leaf in the three dimensional structure.

Which one of the following correctly represents the manner of replication of DNA?

(1)

(2)

(3)

(4)

Which one of the following codons codes for the same information as UGC?

(1) UGU

(2) UGA

(3) UAG

(4) UGG