Explore topic-wise MCQs in Biology.

This section includes 256 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

101.

Where the High Security Animal Disease Laboratory is located in India ?

A. Hyderabad
B. Bangalore
C. Bhopal
D. Mumbai
Answer» D. Mumbai
102.

Night blindness is caused by the deficiency of

A. Vitamin A
B. Vitamin B-
C. Vitamin C
D. Vitamin E
Answer» B. Vitamin B-
103.

Iodine is administered to patients suffering from

A. Rheumatism
B. Night blindness
C. Rickets
D. Goitre
Answer» E.
104.

Sleeping sickness happens due to

A. Deficiency of vitamin A
B. Deficiency of calcium in body
C. Rising of Blood pressure
D. Trypanosoma
Answer» E.
105.

The liver disease Hepatitis-B is caused by

A. DNA virus
B. RNA virus
C. Bacterium
D. Platyhelminth
Answer» B. RNA virus
106.

The radio isotope used to detect tumours is

A. Iodine-131
B. Cobalt-60
C. Arsenic-74
D. Sodium-24
Answer» D. Sodium-24
107.

The radio isotope used to control blood cancer (leukaemia) is

A. Iodine-131
B. Sodium-24
C. Phosphorus-32
D. Cobalt-60
Answer» E.
108.

The blue baby pollution disease is due to the excessive presence of which of the following in drinking water ?

A. Fluoride
B. Chloride
C. Nitrate
D. Arsenic
Answer» D. Arsenic
109.

Which of the following is not included in AYUSH Department under the Ministry of Health and Family Welfare of the Govt. of India ?

A. Allopathy
B. Ayurveda
C. Unani
D. Sidhi
Answer» B. Ayurveda
110.

The disease in which high levels of uric acid in the blood is detected

A. Meningitis
B. Gout
C. Rheumatism
D. Rheumatic heart
Answer» C. Rheumatism
111.

During dehydration, the substance that is usually lost by the body is

A. Sugar
B. Calcium phosphate
C. Sodium chloride
D. Potassium chloride
Answer» D. Potassium chloride
112.

Which of the following disease is caused by bacteria ?

A. Athlete's foot
B. Tuberculosis
C. Ringworm
D. Thrush
Answer» C. Ringworm
113.

According to the World Health Organisation, the disease which caused the death of the largest number of people in 2011, was

A. AIDS
B. Tuberculosis
C. Malaria
D. Ischaenic heart diseases
Answer» E.
114.

Which on of the following antimicrobial drugs is suitable for treatment of both tuberculosis and leprosy ?

A. Isoniazid
B. P-amino salicylic acid
C. Streptomycin
D. Rifampicin
Answer» E.
115.

Which of the following vitamin is effective in blood clotting ?

A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin K
Answer» E.
116.

Which of the following disease is caused by Protozoa ?

A. Malaria
B. Cholera
C. Jaundice
D. None of these
Answer» B. Cholera
117.

Itai-Itai disease is caused by chronic poisoning of

A. Mercury
B. Nickel
C. Cadmium
D. Lead
Answer» D. Lead
118.

Foot and Mouth disease in animals, a current epidemic in some parts of the world, is caused by

A. Bacterium
B. Fungus
C. Protozoan
D. Virus
Answer» E.
119.

"Athelete's Foot" is a disease caused by

A. Bacteria
B. Fungus
C. Protozoan
D. Nematode
Answer» C. Protozoan
120.

Which one of the following genetic disease is sex linked ?

A. Haemophilia
B. Tay-sachs disease
C. Cystic fibrosis
D. Hypertension
Answer» B. Tay-sachs disease
121.

BMD testing is done to diagnose

A. Dengue
B. Malaria
C. Osteoporosis
D. AIDS
Answer» D. AIDS
122.

Haemophilia is a genetic disorder which leads to

A. Decrease in haemoglobin level
B. Rheumatic heart disease
C. Decrease in WBC
D. Non-clotting of blood
Answer» E.
123.

Of the four land marks in medical history given below, which one was the first to take place ?

A. Organ transplant
B. Bypass surgery
C. Test tube baby
D. Plastic surgery
Answer» E.
124.

Anosmia is

A. Loss of the sense of taste
B. Loss of the sense of smell
C. Loss of the sense of touch
D. Loss of the sense of heat
Answer» C. Loss of the sense of touch
125.

AIDS is caused by

A. bacteria
B. fungus
C. helminth
D. virus
Answer» E.
126.

Which of the following disease is caused by Vitamin B-3 ?

A. Berry-berry
B. Night blindness
C. Rickets
D. Pellagra
Answer» E.
127.

Salk's vaccine is connected with which one of the following diseases ?

A. Small pox
B. Tetanus
C. T.B.
D. Polio
Answer» E.
128.

Which of the following is a substance available in small quantity in the sea and administered in a certain deficiency disease ?

A. Iron
B. Vitamin A
C. Fluorine
D. Iodine
Answer» E.
129.

In countries where polished rice is the main cereal in their diet, people suffer from

A. Pellagra
B. Beri-beri
C. Scurvy
D. Osteomalacia
Answer» C. Scurvy
130.

Accumulation of which one of the following in the muscles leads to fatigue ?

A. Lactic acid
B. Benzoic acid
C. Pyruvic acid
D. Uric acid
Answer» B. Benzoic acid
131.

The mad cow disease is caused by

A. Bacteria
B. Viruses
C. Fungus
D. Prions
Answer» E.
132.

The National institute for the visually handicapped is situated at

A. Kolkata
B. Dehradun
C. Mumbai
D. Hyderabad
Answer» C. Mumbai
133.

The year 2011 has been marked for the livestock disease named

A. Foot mouth disease
B. Rinderpest
C. Rabies
D. Cowpox
Answer» C. Rabies
134.

Which oh the following decrease in number in the human body due to Dengue fever ?

A. Platelets
B. Haemoglobin
C. Sugar
D. Water
Answer» B. Haemoglobin
135.

What is MRI ?

A. Magnetic Record of Intestines
B. Magnetic Recording of Investigations
C. Magnetic Resonance Imaging
D. Magnetic Resonance in Intestines
Answer» D. Magnetic Resonance in Intestines
136.

Which one of the following human organs is less susceptible to harmful radiations ?

A. Eyes
B. Heart
C. Brain
D. Lungs
Answer» E.
137.

Artemisinin, a drug to cure malaria is obtained from a

A. Seed plant
B. Fungus
C. Bacterium
D. Moss
Answer» B. Fungus
138.

The Minamata disease of Japan 1953 was caused by eating fish contaminated with

A. Nickel
B. Lead
C. Mercury
D. Cadmium
Answer» D. Cadmium
139.

The disease caused by swelling of the membrane over spinal cord a brain is

A. Leukaemia
B. Paralysis
C. Sclerosis
D. Meningitis
Answer» E.
140.

The mirror used by a dentist to examine the teeth of patients is

A. Concave
B. Convex
C. Plane
D. Cylindrical
Answer» B. Convex
141.

Pneumoconiosis afficts the workers who work mainly in

A. Tanneries
B. Coal mines
C. Distilleries
D. Glass Industory
Answer» C. Distilleries
142.

Emphysema is a disease caused by environmental pollution in which the affected organ of the body is

A. Liver
B. Kidney
C. Lungs
D. Brain
Answer» D. Brain
143.

Death by diarrhoea in children is caused mainly by

A. bacteria
B. protozoa
C. amoeba
D. fungus
Answer» B. protozoa
144.

Diseases of which of the following pairs are caused by virus ?

A. Malaria and Polio
B. Polio and Bird Flu
C. Polio and Tuberculosis
D. Tuberculosis and Influenza
Answer» C. Polio and Tuberculosis
145.

Which of the following disease is caused by the excessive consumption of alcoholic beverage ?

A. Appendicitis
B. Viral hepatitis
C. Gall stones
D. Liver cirrhosis
Answer» E.
146.

Which of the following parasites is responsible for 65% of the cases of Malaria in India ?

A. P. malariae
B. P. vivax
C. P. falciparum
D. P. ovale
Answer» C. P. falciparum
147.

Rabies is caused by

A. Bacteria
B. Fungus
C. Virus
D. Protozoan
Answer» D. Protozoan
148.

Which of the following is a bird flu virus ?

A. N5H1
B. NH5
C. HN5
D. H5N1
Answer» E.
149.

Electron beam therapy is a kind of radiation therapy to treat

A. enlarged prostate gland
B. gall bladder stones
C. certain type of cancer
D. kidney stones
Answer» D. kidney stones
150.

AIDS is the short form of which of the following diseases ?

A. Acquired Immune Deformity Syndrome
B. Anticipated Immune Deficiency Syndrome
C. Acquired Immune Deficiency Syndrome
D. Abnormal Immune Deficiency Syndrome
Answer» D. Abnormal Immune Deficiency Syndrome