Free Biotechnology Principles And Processes (Weekly Quiz: 4) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

In genetic engineering, the antibiotics are used

(a) to select healthy vectors.

(b) as selectable markers.

(c) to keep the cultures free of infection.

(d) as sequences from where replication starts.

Question-2

Biolistics (gene-gun) is suitable for

(a) Disarming pathogen vectors

(b) DNA fingerprinting

(c) Transformation of plant cells

(d) Constructing recombinant DNA by joining with vectors

Question-3

Introduction of food plants developed by genetic engineering is not desirable because

(a) these products are less tasty as compared to the already existing products

(b) economy of developing countries may suffer

(c) this method is costly

(d) there is danger of entry of viruses and toxins with introduced crop

Question-4

The way to introduce alien DNA into host cell includes

(a) Biolistics or gene gun

(b) Disarmed pathogens

(c) Micro-injection

(d) All of these

Question-5

Match the

Column I	Column II
A. E	1. Ist in order of identification
B. co	2. genus
C. R	(iii) Muscidae
D. I	4. strain

Codes A B C D

(a) 2 3 4 1

(b) 3 4 1 2

(c) 2 1 4 3

(d) 2 3 1 4

Question-6

In genetic engineering, the antibiotics are used

(a) As sequences from where replication starts

(b) To select healthy vectors

(c) To keep the cultures free of infection

(d) As selectable markers

Question-7

Rennin used in cheese industry is

(a) alkaloid

(b) antibiotic

(c) enzyme

(d) inhibitor

Question-8

Match the following columns.

Column I (Vectors)	Column II(Derivative microorganisms)
A. Eco RI	1. E. coli R 245
B. Hind III	2. Bacillus amyloliquefaciens
C. Bam HI	3. Haemophilus influenzae
D. Eco RII	4. Escherichia coli RY13

Codes A B C D

(a) 3 2 1 4

(b) 1 2 3 4

(c) 4 3 2 1

(d) 4 2 3 1

Question-9

Which of the following should be chosen for the best yield if one were to produce a recombinant protein in large amounts?

(a) A stirred-tank bioreactor without inlets and outlets

(b) Laboratory flask of largest capacity

(c) A continuous culture system

(d) Any of the above

Question-10

Broken ends of two DNA strands are joined by

(a) Endonuclease

(b) Exonuclease

(c) DNA ligase

(d) Gyrases