Explore topic-wise MCQs in Biotechnology.

This section includes 22 Mcqs, each offering curated multiple-choice questions to sharpen your Biotechnology knowledge and support exam preparation. Choose a topic below to get started.

1.

The proteins that forms the walls of the microtubules are
A. actin
B. tubulin
C. pectin
D. hydroxyproline
Answer» C. pectin
Discussion
2.

What are the names of the two genders of haploid yeast cells?
A. A and Alpha
B. M and F
C. Y(a)and Y(b)
D. None of these
Answer» B. M and F
Discussion
3.

The volume of O2 liberated in photosynthesis has which of the following ratio to CO2?
A. 1:1
B. 2:1
C. 1:2
D. 3:1
Answer» B. 2:1
Discussion
4.

The colour of flower is due to the presence of
A. chlorophyll
B. xanthophylls
C. florigen
D. chromoplast or anthocyanin
Answer» E.
Discussion
5.

Neurospora is used as an experimental tool in
A. ecology
B. cytology
C. genetics
D. physiology
Answer» D. physiology
Discussion
6.

In the bundle sheath of C4 plant __________ is/ are less than mesophyll.
A. PSI
B. PSII
C. PSI or PSII
D. PSI and PSII
Answer» C. PSI or PSII
Discussion
7.

The major source of sugar in the world is
A. watermelon
B. beetroot
C. sugarcane
D. dates
Answer» D. dates
Discussion
8.

Mycorrhizae are symbiotic associations between
A. algae and fungi
B. root and fungi
C. bacteria and root
D. bacteria and fungi
Answer» C. bacteria and root
Discussion
9.

Gypsum is beneficial for
A. phosphorus enriched soil
B. water logged soil
C. alkaline soil
D. saline soil
Answer» D. saline soil
Discussion
10.

The study of interaction between living organism and environment is called
A. ecosystem
B. phytogeography
C. ecology
D. photosociology
Answer» D. photosociology
Discussion
11.

Lichen involves two organisms as
A. virus and bacteria
B. algae and bacteria
C. algae and fungi
D. fungi and mosses
Answer» D. fungi and mosses
Discussion
12.

Archaeabacteria differ from the true bacteria as they have
A. different cell membrane lipids
B. cell wall composition
C. ribosomal RNA structure
D. growth not inhibited by antibiotics
Answer» C. ribosomal RNA structure
Discussion
13.

Which group of plants has the greatest diversity (i.e. the most species) living today?
A. Bryophyta
B. Lycophyta
C. Gymnosperms
D. Angiosperms
Answer» E.
Discussion
14.

Which group of land plants is most restricted to moist environments?
A. Lycophyta
B. Sphenophyta
C. Bryophyta
D. Angiosperms
Answer» D. Angiosperms
Discussion
15.

Rice can grow in water submerged soil because the plants
A. have spongy roots
B. can oxidize the micro-environment around their roots and thus able to absorb oxygen
C. are adapted to enable roots to ward off toxic products
D. all of the above
Answer» E.
Discussion
16.

Who among the following coined the term Biotechnology?
A. Karl Ereky
B. James Clarke
C. Paul Terasaky
D. Clarke and Sommer
Answer» B. James Clarke
Discussion
17.

Auxanometer is used for measuring
A. respiratory activity
B. photosynthetic activity
C. growth activity
D. osmotic pressure
Answer» D. osmotic pressure
Discussion
18.

In angiosperm, the endosperm is
A. haploid
B. diploid
C. triploid
D. none of these
Answer» D. none of these
Discussion
19.

Triticale, the first man made cereal is an example of
A. artificial allopolyploidy
B. artificial autopolyploidy
C. man made crossing
D. artificial evolution
Answer» B. artificial autopolyploidy
Discussion
20.

Triticale is derived by crossing
A. wheat and rice
B. wheat and tapioca
C. rye (secale) and wheat
D. rye and rice
Answer» D. rye and rice
Discussion
21.

A very common mutualistic, symbiotic relationship between a fungus and the roots of a plant is
A. lichen
B. mycorrhizal
C. ascomycete
D. basidiomycete
Answer» C. ascomycete
Discussion
22.

What single feature is probably most responsible for the success of angiosperms?
A. Seeds
B. Fruit
C. Broad leaves
D. Flowers
Answer» E.
Discussion