Question 1

The linking of antibiotic resistance gene with the plasmid vector became possible with :

Accepted Answer

Correct answer is C

Question 2

Main objective of production./use of herbicide resistant GM crops is to :

Accepted Answer

Correct answer is B

Question 3

Which of these is used as vector in gene therapy for SCID?

Accepted Answer

Correct answer is D

Question 4

Which one among the following is just a cloning plasmid not an expression plasmid?

Accepted Answer

Correct answer is C

Question 5

Branch dealing with genetic engineering is :

Accepted Answer

Correct answer is C

Question 6

Genetic engineering means :

Accepted Answer

Genetic engineering is DNA manipulation technology that produces and modifies DNA sequences for creating cells, tissues organs and individuals to suit human requirements.

Question 7

Who among the following scientists is associated with the discoveries in genetic engineering?

Accepted Answer

Hargouind Khorana is associated with genetic engineering. He synthesized 'gene' artificially' in a test tube (1969).

Question 8

It is now possible to breed plants and animals with desired characters through :

Accepted Answer

Correct answer is A

Question 9

Which of the following organelles is related with genetic engineering/gene doning?

Accepted Answer

Plasmids are extrachromosomal covalently closed circular double stranded molecules of DNA present in most prokaryotes. Therefore they are used as a vector in genetic engineering.

Question 10

In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (A-D) in this regard and select the correct option about which one or more of these can be used as a vector/vectors :Statements(A) A bacterium(B) Plasmid(C) Plasmodium(D) Bacteriophage

Accepted Answer

Plasmids and bacteriophages are used as vectors in genetic engineering.

Question 11

Recombinant DNA (rDNA) technology is related with :

Accepted Answer

The first recombinant DNA was constructed by Stanley cohen and Herbert in 1972. They cut the piece of DNA from a plasmid carrying antibloticresistance gene in the bacterium Salmonella typhimurium and linked it to the plasmid of Escherichia coli.

Question 12

A desirable change in genotype of an organism is obtained by :

Accepted Answer

Fruit fly also known as drosophila is widely used in genetic engineering.

Question 13

Which of these is widely used in genetic engineering?

Accepted Answer

Fruit fly also known as drosophila is widely used in genetic engineering.

Question 14

Identify the plasmid :

Accepted Answer

Plasmid pBr 322 was one of the first widely used cloning vectors, it contains both ampicillin and tetracycline resistance genes.

Question 15

In recombination vector used is :

Accepted Answer

Correct answer is B

Question 16

First biochemical to be produced commercially by microbial cloning and genetic engineering is :

Accepted Answer

Commercially production of Ecoli genetically engineered human insulin.

Question 17

Which of the following option is correct for recombinant DNA technology?

Accepted Answer

Correct answer is D

Question 18

Restriction endonucleases are most widely used in recombinant DNA technology. They are obtained from :

Accepted Answer

Correct answer is B

Question 19

In recombinant DNA technique the term vector refers to :

Accepted Answer

Correct answer is A

Question 20

An analysis of chromosomal DNA using the southern hybridization technique does not use :

Accepted Answer

Correct answer is A

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Solution for Class 12, Biology, Biotechnology: Principles and Processes

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