Biology - Questions and Answers, General Study (GK)

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1291.

DNA double helical structure was described for the first time by

(a)Beadle and Tautum

(b)Mclntosch

(c)Watson and Crick

(d)Hargobind Khorana

Comment

Answer is: C

1292.

Catalytically active enzyme is called

(a)Coenzyme

(b)Holoenzyme

(c)Apoenzyme

(d)Ribozyme

Comment

Answer is: C

1293.

Water droplets at the tip of the leaf are due to

(a)Cuticular transpiration

(b)Guttation

(c)Stomatal transpiration

(d)Lenticular transpiration

Comment

Answer is: B

1294.

The age of a tree can be determined

(a)Measuring the height

(b)Measuring its girth

(c)Measuring its diameter

(d)Counting the annual growth rings

Comment

Answer is: D

1295.

The name "Traveller's palm" refers to

(a)Cocos nucifera

(b)Musa sapientum

(c)Heliconia

(d)Revenala madagas cariensis

Comment

Answer is: D

1296.

Phyllode is seen in the plant

(a)Acacia melanoxylon

(b)Acacia arabica

(c)Acacia sundra

(d)Acacia concinna

Comment

Answer is: A

1297.

Polyploids can be artificially induced by

(a)Colchicine

(b)Cross - pollination

(c)Vegetative propagation

(d)Self - pollination

Comment

Answer is: A

1298.

Parthenocarpy can be induced by

(a)ABA

(b)IAA

(c)GA

(d)C2 H4

Comment

Answer is: B

1299.

Raphanobrassica was discovered by

(a)Karpachanko

(b)Lysanko

(c)Mendel

(d)Brown

Comment

Answer is: C

1300.

When FADH2 is oxidised, the following number of ATP is produced

(a)2

(b)3

(d)1

Comment

Answer is: A

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Biology - Questions and AnswersPage 130

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