Agriculture Quiz 40

1. The microbes play an important role in the catalytic complicated chemical reactions of

A) Wine production

B) Fermentation

C) Dairy product

D) All of the above

2. Which among the following contain only one type of nucleic acid?

A) Bacteria

B) Virus

C) Dead virus

D) All

3. The plant virus was first isolated in crystalline form

A) TMV

B) Bacteriophages

C) Cyanophages

D) HIV

4. The molecular scissors used to cut DNA into specific genes of interest are called

A) Exonucleases

B) Restriction endonucleases

C) Ligases

D) Polymerases

5. The quickest way to produce homozygous breeding lines from heterozygous parents is through

A) Half-seed technique

B) Doubled haploids

C) Introgression

D) Aneuploidy

6. Which of the following organelle lack membrane?

A) Mitochondria

B) Ribosomes

C) Microtubules

D) Peroxisomes

7. Virions are

A) DNA viruses

B) RNA viruses

C) Naked DNA viruses

D) Naked RNA viruses

8. DNA is present in

A) Nucleus

B) Mitochondria

C) Chloroplast

D) All of the above

9. DNA replication occurs in which stage of cell division?

A) G1 phase

B) G2 phase

C) S phase

D) M phase

10. Bt cotton is resistant to bollworm, it is due to

A) Bt is repellent to bollworm

B) Bt is contact poison for bollworm

C) Bt is stomach poison; it creates pores in alkaline gut

D) Bt causes death due to asphyxiation

11. Bacterial genes lack

A) Exons

B) Introns

C) Promoters

D) Operator

12. The terminal codons are

A) AUG, GUG, GUC

B) UAG, UAA, AGA

C) UAA, UAC, AUG

D) UAA, UAG, UGA

13. Which sequence in case of eukaryotes is important for mRNA tailing?

A) GAGAGA

B) GAATTC

C) UACGAC

D) UACUAAAC

14. Transfer of genes (gene flow) in between different species is known as

A) Vertical gene flow

B) Horizontal gene flow

C) Lateral gene flow

D) Side gene flow

15. Most commonly used organism in SCP is

A) Bacillus

B) E. coli

C) Spirulina

D) Pseudomonas

16. The bond between sugar and nitrogenous base in case of DNA is known as

A) Glycosidic bond

B) Phosphodiester bond

C) H-bond

D) Peptide bond

17. Which of the following amino acid participate in urea cycle?

A) Arginine

B) Lysine

C) Tryptophan

D) Histidine

18. The techniques to clone the first gene were developed in

A) 1972

B) 1987

C) 1976

D) 1977

19. Biosensors are used as

A) Purified enzymes

B) Antibodies

C) Whole microbial cells

D) Any of the above

20. Which enzyme plays important role in reverse transcription?

A) DNA polymerase

B) RNA polymerase

C) Reverse transcriptase

D) Ribonuclease

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