Crossing of unrelated pure breeding animals of different traits within the same breed is called

1.  Cross breeding

2.  Out crossing

3.  Close breeding

4.  Species hybridisation

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4
Correct Answer :

Out crossing


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The stand of DNA acting as template foe m-RNA transcription is(1) Coding strand(2) Non-coding strand(3) Sense strand(4) Anti-sense strandThe correct answer is

1.  A and C

2.  A and D

3.  B and D

4.  B and C

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4
Correct Answer :

B and D


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The peculiar primitive animals found in Madagascar but absent in Africa are

1.  Elephants

2.  Penguins

3.  Lemurs

4.  Echidnas

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4
Correct Answer :

Lemurs


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"A brief reduction in size of a population due to natural calamities usually leads to random genetic drift". For this statement identify the correct example form the following

1.  Human population of Pitcairn Island

2.  Polydactylic dwarfs in Amish population

3.  Long necked giraffe

4.  Industrial melanism

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4
Correct Answer :

Polydactylic dwarfs in Amish population


Explanation :
No Explanation available for this question

Study the followingA. The cells of malignant tumors divide erraticallyB. They are malignant tumors of epithelial cellsC. They are malignant tumors of organs that originate from mesodermD. These tumors are found in organs such as spleen and lymph nodesWhich of the above are true for angio-sarcoma

1.  A and B

2.  B and D

3.  A and C

4.  B and C

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4
Correct Answer :

A and C


Explanation :
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Study the following pathogensA. Yersinia pestisB. Borrelia spC. Oidium albicansD. Micobactrium lepraeE. Haemophilus gallinariumWhich of the above cause damage to poultry industry

1.  A and D

2.  C and E

3.  B and D

4.  D and E

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4
Correct Answer :

C and E


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The complexes formed during immune complex indicated hypersensitivity are removed by

1.  Eosinophils and Tc cells

2.  Monocytes and B-lymphocytes

3.  Eosinophils and monocytes

4.  Eosinophils and basophiles

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4
Correct Answer :

Eosinophils and monocytes


Explanation :
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An example for a terrestrial Protozoan is

1.  Vorticella

2.  Giardia

3.  Didynium

4.  Plasmodium

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4
Correct Answer :

Didynium


Explanation :
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The infective form of the malarial parasite is

1.  Multinucleate sporozoite

2.  Cryptomerozoite

3.  Cryptozoite

4.  Uninucleate sporozoite

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4
Correct Answer :

Uninucleate sporozoite


Explanation :
No Explanation available for this question

The band of Cilia present on the dorsal wall of vestibule of Paramecium is known as

1.  Peniculus

2.  Ambulacrum

3.  Kinety

4.  Quadrulus

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4
Correct Answer :

Quadrulus


Explanation :
No Explanation available for this question
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