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Biology - General Knowledge Objective Questions

36

Other than spreading malaria, anopheles mosquitoes are also vectors of

A.

filariasis

B.

yellow fever

C.

dengue fever

D.

encephalitis

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Correct answer is : A
Explanation

No explanation available. Let's Discuss

 
37

The term "Test Tube Baby" refers to

A.

An artificial baby developed in a test tube

B.

A baby developed from ovum without fertilization

C.

A baby developed in a test-tube

D.

in vitro fertilization and embryo replacement

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Correct answer is : D
Explanation

No explanation available. Let's Discuss

 
38

Placenta is the structure formed

A.

by foetus only

B.

by fusion of germ layers

C.

by the union of foetal and uterine tissue

D.

None of these

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Correct answer is : C
Explanation

No explanation available. Let's Discuss

 
39

Hyaluronidase is found in

A.

The centrosome of mammalism ovum

B.

The lysosome ofovum

C.

The lysosome of sperm

D.

The acrosome of mammalism sperm

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Correct answer is : D
Explanation

No explanation available. Let's Discuss

 
40

N2 content is kept constant in the biosphere due to

A.

industrial pollution

B.

nitrogen cycle

C.

absorption of N2

D.

N2 fixation

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Correct answer is : B
Explanation

No explanation available. Let's Discuss

 
 

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