Biology

41. End of menstrual cycle in old age is called:

1. Andropause

2. Menopause

3. Gametopause

4. All of the above

42. Genotype ratio of Mendel’s Law of independent assortment is:

1. 3 : 1

2. 1 : 2 : 1

3. 9 : 3 : 3 : 1

4. None of the above

43. Proteins are made up of:

1. Proteases

2. Peptides

3. Carboxylic acid

4. Amino acid

44. Which of the following is a characteristic of land plants?

1. Multicellular plant body

2. Heterogamy

3. Alternation of generations

4. All of the above

45. Blood from head, neck and arms enters the heart by way of the:

1. Superior vena cava

2. Inferior vena cava

3. Pulmonary artery

4. Pulmonary vein

46. A woman receives her X chromosomes from:

1. Her mother only

2. Her father only

3. Both her mother and her father

4. Extranuclear DNA in her mother’s egg

47. Sea horse is:

1. a fish

2. a reptile

3. a mammal

4. an invertebrate

48. Euglena:

1. is capable of functioning as a heterotroph

2. is capable of functioning as a autotroph

3. is capable of functioning both as heterotroph and autotroph

4. is a parasite

49. In Earthworm, the gaseous exchange takes place:

1. Through moist skin rich in blood capillaries

2. By coelomic fluid

3. Through mouth

4. By nephridia

50. Animal behavior is identified as:

1. Instinctive

2. Learned

3. Both A & B

4. None of the above

Answer Keys

Q #.	Right Choice
1	C
2	D
3	B
4	A
5	A
6	A
7	C
8	D
9	A
10	B
11	A
12	D
13	C
14	B
15	A
16	D
17	D
18	E
19	B
20	C
21	D
22	C
23	D
24	A
25	A
26	A
27	C
28	B
29	B
30	D
31	B
32	D
33	D
34	D
35	D
36	E
37	A
38	C
39	E
40	B
41	B
42	C
43	D
44	D
45	A
46	C
47	A
48	C
49	A
50	C

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Sample Paper NAT IM