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.

4601.

Which fungus is used in the manufacture of double bread?

A. acetobacter
B. aspergillus
C. saccharomyces
D. Penicillium
Answer» D. Penicillium
4602.

Which symbiotic algae is found in the secretory cells of Hydra?

A. Euclorella
B. Spiragira
C. ulothrix
D. Nostock
Answer» B. Spiragira
4603.

Lichens are made up of two classes of plants.

A. Algae and Bryophyta
B. fungi and ferns
C. fungus and algae
D. bacteria and virus
Answer» D. bacteria and virus
4604.

Are lichens indicative?

A. of water pollution
B. of air pollution
C. of soil pollution
D. of radiation pollution
Answer» C. of soil pollution
4605.

The disease of death caused by the bite of a dog by Vishnu is called?

A. mums
B. chicken pox
C. Jaundice
D. hydrophobia
Answer» E.
4606.

Which one of the following represents a useful functional relationship between a fungus and the roots of a higher plant?

A. Correloid
B. organic fertilizers
C. Mycorrhiza
D. root lichen
Answer» D. root lichen
4607.

What happens in a virus?

A. proteins and lipids
B. nucleic acids and proteins
C. lipids and carbohydrates
D. Carbohydrates and Nucleic Acids
Answer» C. lipids and carbohydrates
4608.

Cause of AIDS?

A. bacteria
B. amoeba
C. virus
D. mildew
Answer» D. mildew
4609.

Which of the following color is caused by virus?

A. chicken pox
B. cholera
C. Malaria
D. tuberculosis
Answer» B. cholera
4610.

There is a hole in a copper disc, if the disc is heated, the size of the hole?

A. grows
B. decreases
C. stays the same
D. first increases and then decreases
Answer» C. stays the same
4611.

What color is imparted to Bunsen flame by strontium salt?

A. apple green
B. blue green
C. none of these
D. Crimson red
Answer» E.
4612.

Which one of the following diseases is caused by bacteria and spread through the droppings of flies?

A. Typhoid
B. whooping cough
C. chicken pox
D. diphtheria
Answer» B. whooping cough
4613.

Which heavy metal is found in modern tanning industries, which is toxic?

A. Such as
B. Nickel
C. lead
D. Chromium
Answer» E.
4614.

Cancer related?

A. from rotting wounds
B. uncontrolled growth of tissues
C. with large tumors
D. controlled division of tissues
Answer» C. with large tumors
4615.

Which of the following diseases is not an insect borne disease?

A. Kala-azar
B. Malaria
C. plague
D. beri-beri
Answer» E.
4616.

The patient dies due to the consumption of which type of alcohol?

A. methyl alcohol
B. ethyl alcohol
C. ethyl and methyl alcohol
D. none of these
Answer» B. ethyl alcohol
4617.

Who invented the Jaipuri foot?

A. Dr. Sethi
B. Dr. Chugh
C. Dr. Swami
D. Dr. Khurana
Answer» B. Dr. Chugh
4618.

Children who do not get sunlight are sick.

A. of rickets
B. of myxedema
C. of night blindness
D. none of these
Answer» B. of myxedema
4619.

Itai-Itai disease is caused due to excess of which element of the body?

A. cadmium
B. nitrate
C. Mercury
D. arsenic
Answer» B. nitrate
4620.

Which psychiatry is called insane?

A. psychosis
B. Psychoneurosis
C. podophilia
D. delicious mania
Answer» B. Psychoneurosis
4621.

Have false beliefs about your greatness?

A. Depressive Stooper
B. Schizophrenia
C. paranoyya
D. pedophilia
Answer» D. pedophilia
4622.

Who was the exponent of psychoanalysis method?

A. Freud
B. Pinel
C. yung
D. Adler
Answer» B. Pinel
4623.

Which of the following diseases is not transmitted by tiger mosquitoes?

A. Dengue
B. yellow fever
C. Japanese encephalitis
D. Chikungunya
Answer» D. Chikungunya
4624.

Who propounded Ashtanga Yoga?

A. Maharishi Jaimini
B. gautam muni
C. Maharishi Patanjali
D. Maharishi Kapil
Answer» D. Maharishi Kapil
4625.

Who propounded Ashtanga Yoga

A. Maharishi Jaimini
B. Maharishi Kapil
C. Maharishi Patanjali
D. gautam muni
Answer» D. gautam muni
4626.

Who is the father of 'Immunology'?

A. Louis Pasteur
B. Robert Koch
C. landsteiner
D. edward jenner
Answer» E.
4627.

Who was the inventor of artificial insulin?

A. Pasteur u0026 Koch
B. batting and best
C. Crabs and Crabs
D. Jenner and Cook
Answer» C. Crabs and Crabs
4628.

Minimata disease is caused by harmful amounts of which of the following metals?

A. Out
B. boron
C. Mercury
D. arsenic
Answer» D. arsenic
4629.

Oncogene is related to?

A. from jaundice
B. from tuberculosis
C. enteric
D. from cancer
Answer» E.
4630.

Is Ebola a?

A. Deadly virus
B. terrorist organization
C. AIDS test
D. none of these
Answer» B. terrorist organization
4631.

On the basis of intensity and application, which of the following can cause cancer and also treat it?

A. alcohol
B. tobacco
C. ultraviolet rays
D. ionizing radiation
Answer» E.
4632.

Who gave the theory of germ-plasm?

A. leaven hawk
B. Darwin
C. seedman
D. splanjani
Answer» D. splanjani
4633.

Which of the following is used in the treatment of blood cancer?

A. sodium- 24
B. Iodine- 131
C. Phosphorus- 32
D. Cobalt- 60
Answer» D. Cobalt- 60
4634.

If a human disease spreads over a large area of ​​the world, what is it called?

A. Epidemic
B. Pandemic
C. epizootic
D. endemic
Answer» C. epizootic
4635.

Have a swarm crop?

A. Grain
B. maize
C. ready
D. barseem
Answer» B. maize
4636.

In a particular region, the genes of all the members of a species make up the population?

A. genotype
B. gene pool
C. gene flow
D. phenotype
Answer» D. phenotype
4637.

In which Mahakalpa did life originate?

A. proterozoic
B. Precambrian
C. Mesozoic
D. Cambrian
Answer» C. Mesozoic
4638.

Who propounded 'mutationism'?

A. by Lamarck
B. by Darwin
C. by debris
D. Wallace
Answer» D. Wallace
4639.

Which organism was used by Mendel to formulate his iconic 'laws of inheritance'?

A. Garden P
B. sweet drink
C. dosophila
D. snap dragons
Answer» B. sweet drink
4640.

Who was the first to do mutation induction by X-rays?

A. Margen
B. muller
C. okawa
D. beedil
Answer» C. okawa
4641.

What could be the possible closest direct prehistoric ancestor of present-day humans?

A. Java
B. Cro-Magnon
C. Neanderthals
D. peking
Answer» C. Neanderthals
4642.

Who gave the operon concept of gene function regulation?

A. jacqua and mono
B. beadil and tatum
C. NS. M. Ingram
D. R. D. Karnberg
Answer» B. beadil and tatum
4643.

Each amino acid has a specific sequence of three bases called?

A. metagenia
B. genia
C. genome
D. coding
Answer» E.
4644.

Which fungus was used for gene expression and regulation?

A. albugo
B. rhizopus
C. cystopus
D. Newspora
Answer» E.
4645.

Genes are found in a linear sequence?

A. at the nucleus
B. on central art
C. on chromosomes
D. on the plasma membrane
Answer» D. on the plasma membrane
4646.

d of genetic information

A. Translation
B. transcription
C. genetic code
D. none of these
Answer» C. genetic code
4647.

Which enzyme is not synthesized in lethal mutation?

A. DNA polymerase
B. RNA polymerase
C. Tyrosinease
D. none of these
Answer» C. Tyrosinease
4648.

What is an example of missing mutation?

A. astigmatism
B. Skeletal hemorrhagic anemia
C. color blindness
D. hemophilia
Answer» C. color blindness
4649.

Plasmids are?

A. the genetic material of a bacterium that is outside the chromosome
B. genetic unit of bacteria
C. a bacterial disease
D. Antibiotics obtained from bacteria
Answer» B. genetic unit of bacteria
4650.

participate in the structure of chromosomes?

A. carbohydrates and fats
B. DNA and protein
C. Proteins and Carbohydrates
D. Protein and RNA
Answer» C. Proteins and Carbohydrates