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Posted Date: 15 Jan 2011 Posted By:: Russell vyas Member Level: Silver Points: 5 (₹ 1)
2009 Maharashtra Animal & Fishery Sciences University B.Sc. Biochemistry C.s.e. zoology sample question paper for preliminary examination Question paper
Q1. Which of the following are the characteristics of prokaryotes ?
(a) Single chromosome made upofnucleic acid complexed with histone and 70 S ribosome comprisedof30 S and 50 S.(b) Single chromosome made upofnaked nucleic acid and 70 S ribosome comprisedof30 Sand 50 S.(c) Single chromosome made upofnucleic acid complexed with histone and 80 S ribosome comprisedof40 S and 50 S.(d) Single chromosome made upofnaked nucleic acid and 80 S ribosome comprised 30 Sand 50 S.
Q2. The amountofDNA in G1 phaseofcell cycle is ?
(a) Same as found in G2 phase
(b) Half the amount found in G2 phase
(c) Double the amount found in G2 phase
(d) Four times the amount found in G2 phase
Q3. Consider the following statements: ?
I. Friedrich Miescher first isolated nucleic acids from pus cells.
2. Hershey and Chase showed through experiment that genetic material was DNA and not protein.
3. Meselson and Stahl proved the semi-conservative replication of DNA.
Which of the statements given above are correct?(
a) 1 and 2 (b) 2 and 3(c) 1 and 3 (d) 1,2 and 3
Q4. The nucleolar organiser is located on the chromosome in the region of ?
(a) Primary constriction
(b) Secondary constriction(c) Kinetochore
5. During cell-cycle, the duration of which ofthe following phases is the shortest?
(b) G. phase
Q6. Prions are disease causing agents composed of(a) DNA and protein.
Q7. Consider the following statements:
I. In the lampbrush chromosomes of am phibian oocytes, the loops are engaged in the transcription.2. In polytene chromosomes, the puffs are the sites of m RNA formation.
Which of the statements given above is/are correct?(a) I only (b) 2 only(c) Both I and 2 (d) Neither I nor 2
Q8. Which one among the following has the largest number of chromosomes?
Q9. Consider the following statements regarding a DNA segment 1000 base pair long:
1. It measures 3400 A.
2. It has 10 complete turns. .3. It has 100 nucleotides.
4. The RNA synthesized from it carries 1000 nucleotides.
Which of the statements given above are correct?
(a) I and 2 (b) 3 and 4(c) I and 4 (d) 1, 3 and 4
Q10. Which types of specialized sequences are carried at both ends of line archromosomes for faithful DNA replication, aging and maintaining polarity?
(d) Repetitive sequences
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