CBSE Class 12 Biology Molecular Basis of Inheritance Quiz 3

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CBSE › Class 12 › Biology › Molecular Basis of Inheritance

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1. Transposons occur in:

A In Eukaryotes B In Prokaryotes C In both (a) and (b) D None of these

2. One of these is not prepared directly from DNA

A m-RNA B f-RNA C r-RNA D Protein

3. Coiling of DNA duplex is:

A Left-handed B Right-handed C Parallel D All of these

4. DNA double helix model was given by:

A Knoll and Ruska B Khorana C Watson and Crick D Priestley

5. Inprokaryotic translation, GTP molecule required in at:

A Formation of formyl-met-f-RNA B Joining of 30S sub-unit of ribosome with n-RNA C Joining of 30S m-RNA on Formyl-met-f-RNA D Joining of 50S subunit of ribosome with initiation complex

6. DNA transcription, if nucleotide sequence of DNA strand, that is being coded in ATACG, then the nucleotide sequence in m-RNA would be:

A UATGC B TATGC C TCTGG D UAUGC

7. In a m-RNA, how many nucleotide sequence code for amino acid:

A One B Two C Three D Four

8. RNA from which has clover leaf model:

A f-RNA B r-RNA C hn-RNA D m-RNA

9. Nitrogenous bases present in DNA:

A Adenine, guanine, cytosine, thymine B Adenine, guanine, cytosine, uracil C Adenine, thymine, uracil D Guanine, uracil

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