Online Biotechnology Test - Biotechnology Test - Random

Instruction:

This is a FREE online test. Beware of scammers who ask for money to attend this test.
Total number of questions: 20.
Time allotted: 30 minutes.
Each question carries 1 mark; there are no negative marks.
DO NOT refresh the page.
All the best!

EMBL 3 and EMBL 4 are replacement vectors, which can clone DNA up to

6-7 kb

15-25 kb

40-44 kb

1-2 kb

[#]

Cryptic plasmids

do not exhibit any phenotypic trait

exhibit many phenotypic traits

exhibit one phenotypic traits

exhibit antibiotic resistance

[#]

Select the wrong statement about plasmids?

It is extrachromosomal

It is double stranded

Its replication depends upon host cell

It is closed and circular DNA

[#]

Plants absorb nitrates from soil and convert them into

urea

ammonia

nitrogen

none of these

[#]

Concentration of sucrose generally used in plant cell culture media is

10-15 g/l

20-30 g/l

40-50 g/l

60-70 g/l

[#]

Which of the following is true about T DNA?

Integration of T DNA can occur at many different, apparently random, sites in the plant nuclear DNA

Integration of T DNA occurs only at one specific sites in the plant nuclear DNA

Integration of T DNA occurs at two specific sites in the plant nuclear DNA

Integration of T DNA occurs at one site that may be random in the plant nuclear DNA

[#]

Which of the following is not true for microinjection technique that involves transfer of DNA into protoplast?

It is carried out with the help of micromanipulator

The recipient cells are immobilized on artificial support or artificially bound to substarate

It employs needle with diameter greater than cell diameter

all of the above

[#]

Agrobacterium tumefaciens is a

gram (+) bacteria

gram (-) bacteria

a fungi

a yeast

[#]

Expression of antisense RNA in transgenic plants is a general method used to

activate the expression of all genes in a biochemical pathway

eliminate the expression of all genes in a biochemical pathway

block the expression of virus coat protein genes

reduce or eliminate the expression of individual genes

[#]

10.

For developing herbicide resistance in transgenic plants which of the following approach/(es) is/are used?

Target molecule is made insensitive to herbicide

Target protein is overproduced

A pathway should be introduced that detoxify the herbicide

All of the above

[#]

11.

Antisense transgenic plants produced fruit that softened

more slowly than the normal fruit

more rapidly than the normal fruit

as the normal fruits

none of these

[#]

12.

Which of the following is not true about synthetic seeds?

Can be stored for a year without the loss of valuables

Easy to handle

Can be directly sown in the soil like natural seeds

Need hardening in the green house

[#]

13.

The preserved embryoids are termed as

synthetic seeds

semi-synthetic seeds

natural seeds

fermented seeds

[#]

14.

Which of the following accumulates from factory waste?

Pseudomonas aeruginosa

Thiobacillus

Pseudomonas putida

Zoogloea ramigera

[#]

15.

Excess CO₂ suppress cell growth and productivity by

inhibiting respiration

altering intracellular pH by diffusing across cell membrane

both (a) and (b)

altering pH of the medium

[#]

16.

Maximum amount of foreign DNA introduced into SV 40 viruses is

10 kb

5 kb

2.5 kb

1 kb

[#]

17.

The nucleous of mature unfertilized ovum may be removed by

irradiation

surgery

both (a) and (b)

neutralization and homogenization

[#]

18.

Which of the following is the process of choosing parent organisms for the characteristics that is wanted in their offspring?

Active selection

Reproductive selection

Selective breeding

Breeding selection

[#]

19.

Ethanol is produced by

continuous fermentation

batch fermentation

both (a) and (b)

none of these

[#]

20.

Ales are the beer in which fermentation is carried out using

top yeast

bottom yeast

either of the above

middle yeast

[#]

Quick links

Quantitative Aptitude

Verbal (English)

Reasoning

Programming

Interview

Placement Papers

Online Biotechnology Test - Biotechnology Test - Random

Marks : 2/20

Test Review : View answers and explanation for this test.

Current Affairs

Interview Questions

Group Discussions