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7 questions · 1995 · answers as per the UPSC key

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All years of Biology · Full UPSC 1995 paper

The Nobel Prize for deciphering the language of bees was awarded to

(a) H. G. Khurana
(b) K. V. Frisch
(c) Julian Huxley
(d) Dorothy Hodgkins
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Answer: (b) K. V. Frisch

A person with ‘AB’ blood group is sometimes called a universal recipient because of the

(a) lack of antigen in his blood
(b) lack of antibodies in his blood
(c) lack of both antigens and antibodies in his blood
(d) presence of antibodies in his blood
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Answer: (b) lack of antibodies in his blood

Which one of the following is a membrane that protects the developing embryo from desiccation?

(a) Amnion
(b) Allantois
(c) Chorion
(d) Yolk sac
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Answer: (a) Amnion

Most of the desert plants bloom during night time because

(a) their blooming is controlled by low temperature
(b) they are sensitive to the phases of moon
(c) the desert insects eat away flowers during day time
(d) the desert insects are active during night time
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Answer: (d) the desert insects are active during night time

The only snake that builds a nest is

(a) Chain viper
(b) King Cobra
(c) Krait
(d) Saw scaled viper
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Answer: (b) King Cobra

Which of the following elements are present in all proteins? I. Carbon II. Hydrogen III. Oxygen IV. Nitrogen

Select the correct answer from the codes given below:

(a) I and II
(b) I, II and IV
(c) I, III and IV
(d) I, II, III and IV
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Answer: (d) I, II, III and IV

Which one of the following hormones contains iodine?

(a) Thyroxine
(b) Testosterone
(c) Insulin
(d) Adrenaline
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Answer: (a) Thyroxine