Top 1000+ Solved Biology (GK) MCQ Questions Answer

From 1576 to 1590 of 1657

Q. An antibiotic is -

a. achemical synthesized by a human cell against a microorganism

b. a chemical synthesised by amicro-organism against another micro-organisms

c. a substance produced by blood cells against bacteria

d. a substance produced by blood cells against infection.

  • b. a chemical synthesised by amicro-organism against another micro-organisms

Q. Camel is a desert animal, that can live without water for many days, because -

a. it does not need water

b. water is formed in the body due to oxidation of fat

c. it has the water sac in the walls of the lumen of stomach

d. All of the above

  • d. All of the above

Q. A clone is a colony of :

a. cells having different shapes

b. cells having similar shape

c. cells having similar genetic constitution

d. cells having different genetic constitutions

  • c. cells having similar genetic constitution

Q. The age of a tree can be determined more or less accurately by -

a. counting the number of branches

b. measuring the height of the tree

c. measuring the diameter of the trunk

d. counting the number of rings in the trunk

  • d. counting the number of rings in the trunk

Q. Which one of the following is true regarding plant cells and animal cells‘?

a. Plant cells contain chloroplast while animal cells do not

b. Plant cells are small while animal cells are large in size

c. Plant cells contain nucleus while animal cells do not

d. Plant cells and animal cells are similar in all respects

  • a. Plant cells contain chloroplast while animal cells do not

Q. Which of the following is a perfect match?

a. Coronary attack - vascular dilation

b. Atherosclerosis - blockage of arteries

c. Hypertension - low blood pressure

d. Hypotension - heart attack

  • d. Hypotension - heart attack

Q. In the case of test tube babies

a. egg is fertilized in the uterus.

b. embryo completes its development in a test tube.

c. embryo is placed in uterus after 2 months.

d. egg is fertilized outside mother's body.

  • c. embryo is placed in uterus after 2 months.

Q. Which of the following is correct about cold blooded animals?

a. Their blood remains cold all the time

b. Their body temperature changes in accordance with the atmosphere

c. Their body temperature remains constant all the time

d. They kill all the animals they come across (SSC Combined Graduate Level Prelim Exam.

  • b. Their body temperature changes in accordance with the atmosphere

Q. Which organ of the body never rests?

a. Muscles

b. Nerves

c. Tongue

d. Heart

  • d. Heart

Q. The presence of what distinguishes a plant cell from an animal cell’?

a. Chloroplasts

b. Cell wall

c. Cell membrane

d. Nucleus

  • a. Chloroplasts

Q. Xerophthalmia is a deficiency disease caused by lack of -

a. Vitamin A

b. Vitamin B

c. Vitamin C

d. Vitamin D

  • a. Vitamin A

Q. An ant can see the objects all around it due to the presence of –

a. Simple Eyes

b. Eyes over the head

c. Well-developed eyes

d. Compound eyes

  • d. Compound eyes

Q. Which among the following does not have a cell wall?

a. Euglena

b. Paramecium

c. Gonyaulax

d. Mycoplasma

  • d. Mycoplasma

Q. Hemophilia is –

a. caused by bacteria

b. caused by virus

c. caused by pollutants

d. a hereditary defect

  • d. a hereditary defect
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