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Question : Short strands of ——- primer are used in DNA replication.
A. DNA
B. RNA
C. Histone
D. Protein
Question : During DNA replication the synthesis of the leading strand of DNA results in fragments known as
A. Okazaki fragments
B. Satellite segments
C. Kornberg segment
D. Double-helix segment
Question : How many RNA polymerases are present in a bacterial system?
A. 4
B. 2
C. 1
D. 3
Question : DNA synthesis can be measured by estimating the incorporation of radiolabelled
A. Thymine
B. Guanine
C. Cytosine
D. Adenine
Question : Which of the following base-pairing rule is correct?
A. Adenine with guanine and thymine with cytosine
B. DNA base pairing is non-specific
C. Adenine with cytosine and guanine with thymine
D. Adenine with thymine and guanine with cytosine
Question : cDNA is synthesised from RNA by the enzyme
A. DNA polymerase
B. DNA synthetase
C. DNA convertase
D. Reverse transcriptase
Question : Which of the following processes does not occur in prokaryotes?
A. Transcription
B. Splicing
C. Translation
D. Replication
Question : Which enzyme is used in the unwinding of DNA?
A. Ligase
B. Topoisomerase
C. Helicase
D. Exonuclease
Question : Which enzyme is used to join nicks in the DNA strand?
A. Primase
B. DNA polymerase
C. DNA ligase
D. Endonuclease
Question : Mode of DNA replication is
A. Conservative and bidirectional
B. Semiconservative and unidirectional
C. Semiconservative and bidirectional
D. Conservative and unidirectional
Question : Which of the following statements is not applicable to viruses?
A. The virus replicates in a bacterial host
B. The protein coat of a virus does not enter the host cell
C. The genetic material is DNA or RNA
D. Virus replicate autonomously in the absence of host
Question : True replication of DNA is due to
A. Phosphate backbone
B. Hydrogen bonding
C. Complementary base pairing rule
D. None
Question : The mRNA codon of valine is
A. GUC
B. UGG
C. CCA
D. TTG
Question : The function of β subunit of polymerase is
A. Template binding
B. Catalytic binding
C. Promoter binding
D. Cation binding