Biology Mcqs Test 12 Online Preparation

1.

Production of genetically identical copies of organisms/cells by asexula reproduction is called ?

A. Cloning

B. Mitosis

C. Replication

D. Biological control

2.

Number of chromosomes in E.coli ?

A. 1

B. 6

C. 4

D. 2

3.

Protein factory is___________?

A. centriole

B. nucleus

C. golgi complex

D. ribosome

4.

Astronauts may use which technique to grow fruits and vegetables ?

A. Cloning

B. Pasterisation

C. Hydroponic culture technique

D. Tissue culture techniques

5.

What is the mode of transmission of Hepatitis virus ?

A. Skin penetration

B. Aerosol

C. Parentral (via blood)

D. Unknown

6.

Messenger RNA is formed in_________?

A. chloroplast

B. mitochondria

C. none of these

D. nucleus

7.

Which disease can be controlled by vaccination ?

A. Diabetes

B. Measles

C. Heart attack

D. Cancer

8.

Which statement is incorrect for pasteurization ?

A. It is used to preserve yogurt and milk.

B. It was developed by Louis Pasteur.

C. It involves heating the substance at high temperature for just few sec.

D. It can be used to preserve vegetables and meat.

9.

Co-enzyme is often formed from ?

A. lipid

B. vitamin

C. inorganic ion

D. protein

10.

Smallest disease causing agents in plants are ?

A. viroids

B. virion

C. prions

D. mycoplasma

Biology Mcqs Test 12 Online Preparation

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