BOTANY : Cell & Molecular Biology 3

🟥 BOTANY : Cell & Molecular Biology 3

🟥 QUESTIONS :20

🟥 TIME : 20 MINS

1 / 20

1) The first automated DNA sequencer, invented by

A) Lloyd M. Smith

B) Alec Jeffery

C) Charggaff

D) Francis Ckrick

2 / 20

2)

What are the methodology adopted in HGP
-

A) Expressed sequence tags -

B) Sequence annotation

C) - Sequence delivery -

D) A& B -

E) A & C

3 / 20

3)

Which was the first multicellular organisms genome sequenced
-

A) Saccharomyces cerevasiae -

B) Haemophilia inflluenzae

C) - Caenorhabditis elegans

4 / 20

4) Automated sequencing is defined as _____

A) Chain termination sequencing R

B) adio labeled sequencing

C) Real time fluorescence sequencing

D) Pyrosequencing

5 / 20

5)

The largest gene in humans is
-

A) Titin -

B) Dystrophin -

C) Insulin -

D) Phosphofructokinase

6 / 20

6)

Holiday junction is observed during
-

A) Mitosis -

B) Interphase -

C) Recombination

D) - DNA Repair

7 / 20

7) : Nucleus is absent in

A) - Sieve tube

B) - Cambium -

C) Phloem parenchyma

D) - None of these

8 / 20

8)

The acrosome of the sperm is formed from the
-

A) Mitochondria

B) - Centrosome

C) - Lysosome

D) - Golgi bodies

9 / 20

9) Which of the following contains the three posttranscriptional modifications often seen in the maturation of mRNA in eukaryotes?

A) - 5′-capping, 3′-poly(A) tail addition, splicing -

B) 3′-capping, 5′-poly(A) tail addition, splicing -

C) heteroduplex formation, base modification, capping

D) removal of exons, insertion of introns, capping -

10 / 20

10)

What is the initiator triplet in both prokaryotes and eukaryotes? What amino acid is recruited by
this triplet?

A) - UAA, methionine -

B) AUG; arginine -

C) AUG; methionine -

D) UAA; no amino acid called in

11 / 20

11)

: DNA polymerase synthesize
-

A) DNA in 5' - 3' direction

B) - DNA in 3'- 5' direction

C) - mRNA in 3' - 5' direction -

D) mRNA in 5' - 3' direction

12 / 20

12) During DNA replication, events at the replication fork require different types of enzymes having specialized function except

A) - DNA polymerase -

B) DNA gyrase

C) - DNA Ligase -

D) DNA glycosylase

13 / 20

13)

Replication in prokaryotes is known as:
-

A) D loop replication -

B) Theta replication

C) - Reverse transcription

D) - Hoogsteen replication

14 / 20

14)

Which cell organelle assist oxidation of fatty acid along with peroxysomes
-

A) Ribosome -

B) Nucleus -

C) Endoplasmic reticulum

D) - Mitochondria

15 / 20

15)

Which of the following enzyme produced by peroxysomes are present in plant cell but absent in animal cell
-

A) Catalase -

B) Peroxidase -

C) D-amino oxidase

D) Uricacid oxidase -

16 / 20

16)

The DNA found in all living beings is
-

A) Right handed DNA -

B) Left handed DNA -

C) Z DNA

D) - All of these

17 / 20

17)

Heteroduplex DNA is also known as
-

A) B DNA

B) - Z DNA

C) - A DNA -

D) Heterozygous DNA

18 / 20

Neils Jerne, Georges Koehler and Cesar Milstein were awarded the Nobel Prize in
Physiology or Medicine in 1984 for the discovery of

18)

A) RNA interference

B) Principle for the production of monoclonal antibodies ✔️

C) Genetic control of early embryonic development

D) Eukaryotic transcription factors

19 / 20

19) Which of the following is true about RNA polymerases in eukaryotes?

A) RNA polymerase I produces rRNA, RNA polymerase II produces hnRNA and RNA polymerase III produces tRNA and other small RNAs✔️

B) RNA polymerase I produces rRNA, RNA polymerase II produces and processes mRNA and RNA polymerase III produces tRNA

C) RNA polymerase I produces rRNA, RNA polymerase II produces hnRNA and RNA polymerase III produces only tRNA.

D) RNA polymerase I produces mRNA, RNA polymerase II produces tRNA and RNA polymerase III produces rRNA

20 / 20

20) Which of the following is not a process in the processing of hnRNA?

✔️

A) Addition of methylated cap at the 5’ end

B) Polyadenylation of 3’ end

C) Hammerhead formation

D) RNA splicing

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BOTANY : Cell & Molecular Biology 3

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