Biology Test 69

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Biology Test 69

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Weekly Quiz Competition

Question 1
4 / -1

Which one of the following is a real inducer of lac operon.

A
Lactose

B
IPTG

C
Allolactose

D
β - galactosidase
Question 2
4 / -1

How many seminiferous tubules are present in each testicular lobule ?

A
250

B
750 - 1000

C
1 - 3

D
100
Question 3
4 / -1

Select the option in which the part of brain is not correctly matched with its function ?

A
Association area - Responsible for complex functions like intersensory association, memory and communication.

B
Thalamus - Acts as relay centre of brain and co-ordinates sensory and motor signalling.

C
Hippocampus - Transformation of short term memory into long term memory.

D
Limbic system - Regulates sexual behaviour, emotions and motivation alone, without any help of other part of brain.
Question 4
4 / -1

In meiosis, sister chromatids separate during :-

A
Metaphase-I

B
Anaphase-I

C
Metaphase-II

D
Anaphase-II
Question 5
4 / -1

Which of the following is an epiphyte ?

A
Orchid

B
Lianas

C
Santalum

D
Mango

Question 6

4 / -1

Match the column-I with column-II :-

	Column-I		Column-II
(A)	Alkaloids	(I)	Monoterpenes
(B)	Terpenoides	(II)	Morphine
(C)	Drugs	(III)	Rubber
(D)	Polymeric substances	(IV)	Vinblastin

A-I, B-II, C-III, D-IV

A-II, B-I, C-IV, D-III

A-IV, B-III, C-II, D-I

A-II, B-I, C-III, D-IV

Question 7
4 / -1

If a diploid cell is arrested in Anaphase I and Anaphase II than what is correct for the stages respectively :-

A
2n,4c and 2n,2c

B
2n,4c and n,2c

C
2n,2c and n,2c

D
4n,4c and 2n,2c
Question 8
4 / -1

The entire collection of plants / seeds having all the diverse alleles for all gene in a given crop is called :-

A
Hybrid vigour

B
Germplasm conservation

C
Somaclonal variation

D
Germplasm collection
Question 9
4 / -1

According to Hugo de varies, mutations are :-

A
Continuous

B
Directional

C
Selective

D
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Re-Attempt Weekly Quiz Competition

Biology Test 69

Result

Biology Test 69

Score

-

Rank

-

SHARING IS CARING

Question 1

Lactose

IPTG

Allolactose

β - galactosidase

Question 2

250

750 - 1000

1 - 3

100

Question 3

Association area - Responsible for complex functions like intersensory association, memory and communication.

Thalamus - Acts as relay centre of brain and co-ordinates sensory and motor signalling.

Hippocampus - Transformation of short term memory into long term memory.

Limbic system - Regulates sexual behaviour, emotions and motivation alone, without any help of other part of brain.

Question 4

Metaphase-I

Anaphase-I

Metaphase-II

Anaphase-II

Question 5

Orchid

Lianas

Santalum

Mango

Question 6

A-I, B-II, C-III, D-IV

A-II, B-I, C-IV, D-III

A-IV, B-III, C-II, D-I

A-II, B-I, C-III, D-IV

Question 7

2n,4c and 2n,2c

2n,4c and n,2c

2n,2c and n,2c

4n,4c and 2n,2c

Question 8

Hybrid vigour

Germplasm conservation

Somaclonal variation

Germplasm collection

Question 9

Continuous

Directional

Selective

Random

User

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Rank

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