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Structure Of DNA and RNA- Part 2
See all quizzes of Structure Of DNA and RNA here:
1 Peptide linkages are formed in between
a. Nucleotides
b. Amino acids
c. Glucose molecules
d. Sucrose
2. The nucleic acid of polio viruses is
a. DNA b. RNA – (+) type
c. t-RNA d. m-RNA
3. Rabies virus is
a. Nake RNA virus
b. Naked DNA virus
c. Enveloped RNA virus
d. Enveloped DNA virus
4. Example for DNA virus:
a. Polio virus b. Adeno virus
c. Echo virus d. Poty virus
5. In genetic engineering breaks in DNA are
formed by enzymes known as
a. Restriction enzymes
b. Ligases
c. Nucleases
d. Hydralases
6. DNA transfer from one bacterium to
another through phages is termed as
a. Transduction b. Induction
c. Transfection d. Infection
7. Microorganisms usually make acetyl
CO-A by oxidizing
a. Acetic acid
b. Pyruvic acid
c. α-ketoglutaric acid
d. Fumaric acid
8. The method of DNA replication proposed
by Watson and Crick is
a. Semi conservative
b. Conservative
c. Dispersive
d. Rolling loop
9. The distance between each turn in the
helical strand of DNA is
a. 20 Ao b. 34 Ao
c. 28 Ao d. 42 Ao
10. Self-replicating, small circular DNA
molecules present in bacterial cell are
known
a. Plasmids b. Cosmids
c. Plasmomeros d. plastides
11. Western blotting is the technique used in
the determination of
a. RNA b. DNA
c. Proteins d. All of these
12. m RNA synthesis from DNA is termed
a. Transcription b. Transformation
c. Translation d. Replication
13. Western blotting is a technique used in
the determination of
a. DNA b. RNA
c. Protein d. Polysaccharides
14. Building blocks of Nucleic acids are
a. Amino acids b. Nucleosides
c. Nucleotides d. Nucleo proteins
15. DNA finger printing is based on
a. Repetitive sequences
b. Unique sequences
c. Amplified sequences
d. Non-coding sequences
16. The enzyme required for DNA from RNA
template:
a. RNA polymerase
b. Reverse transcriptase
c. DNA polymerase
d. Terminal transferase
17. Double standard RNA is seen in
a. Reo virus b. Rhabdo virus
c. Parvo virus d. Retro virus
18. Example for DNA viruses:
a. Adeno virus
b. Bacteriophage T1, T2, T3, T4, T5, T6
c. Papova virus
d. Herpes virus and cauliflower moisaic
e. All of the above
19. The following are the RNA viruses, except
a. Reo viruses
b. Retro viruses
c. Bacteriophage Φ C
d. Tmv and Bacteriophages Ms2, F2
e. Dahila mosaic virus and Bacteriophages Φ
× 174, M12, M13
20. The two strands of DNA are joined noncovalently
by
a. Ionic bonds
b. Covalent bonds
c. Hydrogen bonds between bases
d. Polar charges
21. The bases Adenine and Thymine are
paired with
a. Double hydrogen bonds
b. Single hydrogen bonds
c. Triple hydrogen bonds
d. Both b and c
22. The no. of hydrogen bonds existing
between Guanine and Cytosine are
a. 5 b. 2
c. 3 d. None of these
23. The length of each coil in DNA strand is
a. 15 Ao b. 34 Ao
c. 30 Ao d. 5 Ao
24. Nucleic acids are highly charged
polymers due to
a. There is phosphodiester bond between 5’-
hydroxyl of one ribose and 3’–hydroxyl of
next ribose
b. They have positive and negative ends
c. Nucleotides are charged structures
d. Nitrogenous bases are highly ionized
compounds
25. The best studied example for specialized
transduction is
a. P1 phage b. P22 phage
c. ë-phage d. Both a and c
26. The diagrammatic representation of the
total no. of genes in DNA is
a. Genome b. Gene map
c. Gene-structure d. Chromatin
27. During specialized transduction
a. Large amound of DNA is transferred
b. A few no. of genes are transferred
c. Whole DNA is transferred
d. None of these
28. The cell donating DNA during transformation
is
a. Endogenate b. Exogenate
c. Mesozygote d. Merosite
29. Genetic information transfer DNA to RNA
is called –
a. Transcriptase b. Transduction
c. Transformation d. Recombination
30. The gene transfer occurs by –
a. Transformation b. Transduction
c. Conjugation d. Cell fusion
