Explore topic-wise MCQs in Biology.

This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

4251.

What are the plants that never produce flowers called?

A. cryptogames
B. Angiosperm
C. Gymnosperm
D. none of these
Answer» B. Angiosperm
4252.

What is the photosynthetic function in hawthorn?

A. by foliage column
B. by shalkand
C. by Dhankand
D. none of these
Answer» B. by shalkand
4253.

Potato is an underground modified stem, which is called?

A. Shalakanda
B. sweet potato
C. Dhankand
D. tubers
Answer» E.
4254.

Which is generally not required for germination?

A. air
B. heat
C. water
D. Light
Answer» E.
4255.

Onion is a modified form of?

A. root
B. flower
C. stem
D. fruit
Answer» D. fruit
4256.

What is the edible part of potato?

A. root
B. fruit
C. stem
D. bud
Answer» D. bud
4257.

What is Ginger?

A. rhizome
B. bulb
C. root
D. none of these
Answer» B. bulb
4258.

What is the edible part of turmeric plant?

A. fruit
B. Rhizome
C. tubers
D. root
Answer» C. tubers
4259.

Which of the following virus was first discovered?

A. polio
B. htlv
C. TMV
D. HIV.
Answer» D. HIV.
4260.

Which of the following is always present in the tree?

A. leaf
B. root
C. bud
D. twigs
Answer» C. bud
4261.

The thick roots hanging from the trunk of a banyan tree are called?

A. pneumatic core
B. ascending origin
C. column root
D. annular origin
Answer» D. annular origin
4262.

he potential difference between the ends of a conductor is proportional to the current flowing in it.This is the law?

A. Coulomb's law
B. Faraday's law
C. joule's law
D. rules of OM
Answer» E.
4263.

The principle of atomic bomb is based on?

A. on nuclear fusion
B. on nuclear fission
C. on both of the above
D. none of the above
Answer» C. on both of the above
4264.

What is 'Ebola'?

A. fungus
B. protozoa
C. bacteria
D. virus
Answer» E.
4265.

What is a common Mushroom?

A. structure used to produce asexual spores
B. Tightly Chocked Fungus Trap
C. Type of fungal fiber
D. fungal spores
Answer» C. Type of fungal fiber
4266.

What causes the dough to rise when yeast is added?

A. increase in the number of yeast cells
B. release of carbon dioxide gas
C. rise in temperature
D. increase in volume
Answer» C. rise in temperature
4267.

Yeast used in making bread?

A. Acts as a catalyst for fermentation
B. Does not help in the process of fermentation
C. patron (projective)
D. makes it tastier
Answer» B. Does not help in the process of fermentation
4268.

What is the bacterial decomposition of organic matter in anaerobic condition called?

A. Fertilization
B. Composting
C. fermentation
D. contamination
Answer» D. contamination
4269.

Does refrigeration help in food preservation?

A. by killing bacteria
B. reducing the rate of biochemical reactions
C. destroy enzyme action
D. covering food with a layer of ice
Answer» C. destroy enzyme action
4270.

Which of the following is prepared through budding?

A. plasmodium
B. Paramecium
C. amoeba
D. Yeast
Answer» E.
4271.

With which of the following types of organisms is the beehive associated?

A. algae
B. Lichen
C. fungus
D. fern
Answer» D. fern
4272.

Which bacterial strain of bacteria grown from natural isolates, by genetic manipulation, can be used to treat spilled oil in the ocean?

A. Clostridium
B. agrobacterium
C. nitrosomonas
D. pseudomonas
Answer» E.
4273.

Which one of the following is not a characteristic of a virus?

A. presence of DNA or RNA
B. reproduction within the host cell
C. completely parasitic in nature
D. presence of cell wall
Answer» E.
4274.

Who introduced the 'Like Cures Like' homeopathic principle?

A. hippocrates
B. Samuel Heinemann
C. Samuel Cockburn
D. georges vitoulcus
Answer» C. Samuel Cockburn
4275.

The nitrogen fixing bacteria found in the nodules present in the roots of leguminous plants are?

A. Parasite
B. symbiotic
C. protophagy
D. none of these
Answer» C. protophagy
4276.

Which type of cell division is used to repair injury in the body?

A. mitosis only
B. meiosis only
C. both mitosis and meiosis
D. neither mitosis nor meiosis
Answer» B. meiosis only
4277.

Which of the following is a nitrogen fixing bacteria?

A. salmonella
B. E.coli
C. Rhizobium
D. pseudomonas
Answer» D. pseudomonas
4278.

Have a carrot?

A. flower
B. stem
C. root
D. none of these
Answer» D. none of these
4279.

The roots that develop from the radicle are called?

A. tap roots
B. respiratory origin
C. fibrous root
D. ectopic origin
Answer» B. respiratory origin
4280.

What is the origin of respiration?

A. in jusia
B. in Mecca
C. in paan
D. none of these
Answer» B. in Mecca
4281.

Which one of the following is not a root?

A. sweet potato
B. Radish
C. potato
D. carrot
Answer» D. carrot
4282.

Who is the founder of Homeopathy?

A. lanec
B. domac
C. voxman
D. heinemann
Answer» E.
4283.

Do roots develop?

A. from the stem
B. from leaf
C. from the trunk
D. from Mulankur
Answer» E.
4284.

Silviculture is that branch of botany which deals with?

A. of forest development
B. of silicified plants
C. culture of fungi
D. culture of algae
Answer» E.
4285.

Is the column found to be original?

A. in sugarcane
B. in gram
C. in rice
D. in peanuts
Answer» B. in gram
4286.

In which class of plants seeds are formed, but the seeds remain naked on the plant?

A. Gymnosperm
B. Angiosperm
C. Pteridophytes
D. bryophytes
Answer» B. Angiosperm
4287.

Proteins that are used within the cell are synthesized by?

A. endoplasmic reticulum
B. by golgikay
C. by free ribosomes
D. by bound ribosomes
Answer» D. by bound ribosomes
4288.

Where are most chromosomes found?

A. in pteridophytes
B. in bryophytes
C. in man
D. in elephants
Answer» B. in bryophytes
4289.

The roots that develop from any part of the plant other than the radicle are called?

A. pillar root
B. fibrous root
C. ectopic origin
D. none of these
Answer» D. none of these
4290.

Who did the first heart replacement?

A. Dr. William Harvey
B. Sir F. G. hoffkins
C. Dr. Louis Pasteur
D. Dr. Christian Bernard
Answer» E.
4291.

Azolla, one?

A. aquatic fern
B. fungus
C. algae
D. Lichen
Answer» B. fungus
4292.

Where did the nature of seeds originate?

A. fungus
B. algae
C. Pteridophytes
D. bryophytes
Answer» D. bryophytes
4293.

Who discovered the first antibiotic?

A. W. Fleming
B. C. Waxman
C. Louis Pasteur
D. a. Fleming
Answer» E.
4294.

Which of the following animals can live for the longest period without drinking water?

A. giraffe
B. kangaroo rat
C. Kangaroo
D. camel
Answer» C. Kangaroo
4295.

For whose discovery Waxman was awarded the Nobel Prize?

A. chloromycetin
B. streptomycin
C. Neomycin
D. penicillin
Answer» C. Neomycin
4296.

Rhinoscope is a test instrument?

A. Nose
B. Brain
C. ear
D. eye
Answer» B. Brain
4297.

What do doctors use to examine patients?

A. Hygroscope
B. spectroscope
C. stethoscope
D. stroboscope
Answer» D. stroboscope
4298.

In which year was the first human heart transplant done?

A. 1967 AD.
B. 1959 AD.
C. 1972 AD
D. 1955 AD.
Answer» B. 1959 AD.
4299.

What is the written document that an anthropologist produces from research depicting culture?

A. ethnography
B. cultural relativism
C. ethnocentrism
D. ethnobotany
Answer» B. cultural relativism
4300.

Application of genetic laws for the betterment of mankind is related to

A. euphenics
B. Sujanniki
C. life science
D. all these
Answer» C. life science