Latest Biology General Knowledge(GK) Questions and answers

1 .

Night blindness is cause by lack of which vitamin?

Vitamin A

Vitamin B

Vitamin C

Vitamin D

Correct Answer : Vitamin A

2 .

Phloem is a tissue found in

reproductive organs of animals

plants

insects

mammals

Correct Answer : plants

3 .

Norepinephrine increases

respiration

urine production

saliva production

blood pressure

Correct Answer : blood pressure

4 .

Neurospora is used as genetic material because

it has short life cycle of 10 days

the product of single meiosis can be easily analysed

meiotic products are linearly arranged in the form of ordered tetrads

is a diploid fungus

Correct Answer : it has short life cycle of 10 days

5 .

Pigmentation of skin is due to

lymphocytes

monocytes

leucocytes

melanocytes

Correct Answer : melanocytes

6 .

Plants hormone that induces cell division is

auxins

gibberellins

kinins

domins

Correct Answer : kinins

7 .

On which of the following plants did Gregor Mendal perform his classical experiment?

Gram

Maize

Pea

Wheat

Correct Answer : Pea

8 .

Placenta is the structure formed

by the union of foetal and uterine tissue

by foetus only

by fusion of germ layers

None of these

Correct Answer : by the union of foetal and uterine tissue

9 .

Photosynthesis is a process

reductive and exergonic

reductive and catabolic

reductive, endergonic and catabolic

reductive, endergonic and anabolic

Correct Answer : reductive, endergonic and anabolic

10 .

O2 released in the process of photosynthesis comes from

CO₂

water

sugar

pyruvic acid

Correct Answer : water

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