61 The discrimination in the sound of varying intensities is done by which part of human
(A) Sacculus
(B) Utriculus
(C) Basilar membrane
(D) Ressiner’s membrane
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62 Which of the following statements is not correct for a striated muscle when it contra
(A) No change in the length of I band.
(B) No change in the length of myosin band.
(C) A band retains its length.
(D) Sarcomere becomes shorter.
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63 Androgens are secreted by –
(A) Sertoli cells
(B) Leydig cells
(D) Spermatogonial cells
(C) Tunica propria
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64 Bacterial diseases in man are –
(A) Typhoid, plague, malaria
(B) Typhoid, plague, typhu
(C) Diphtheria, pneumonia, influenza
(D) Plague, malaria, typhoid
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65 Select the correct set of homologous organs –
(A) Forelimb of man, wings of birds and flippers of whale
(B) Forelimb of man, wings of insects and wings of birds
(C) Forelimb of man, hind legs of horse, wings of birds
(D) Forelimb of man, tail of horse, wings of bat
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66 Connecting link between phylum Annelida and Mollusca is –
(A) Peripatus
(B) Neopilina
(C) Chiton
(D) Nautilus
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67 Munga silk is obtained from which insect ?
(A) Philosamia ricini
(B) Antheraea assama
(C) Antheraea paphia
(D) Bombyx mori
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68 Who coined the term totipotency ?
(A) Morgan
(B) Schwann
(C) Darwin
(D) Haberlandt
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69 Tap roots are commonly found in –
(A) Angiosperm
(B) Gymnosperm
(C) Monocots
(D) Dicots
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70 Storage product of Rhodophyceae is –
(A) Starch
(B) Glycogen
(C) Floridean starch
(D) Cellulose
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71 Palmella stage is present in –
(A) Chlamydomonas .
(B) Spirogyra
(C) Aspergillus
(D) Riccia
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72 Edible part of apple and pear is –
(A) Thalamus
(B) Epicarp
(C) Mesocarp
(D) Endocarp
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73 First “Earth Summit” for “Convention on Biological Diversity” was held at –
(A) Johannesburg (2002), S. Africa
(B) Rio de Janeiro (1992), Brazil
(C) Dehradun (1992), India
(D) New York (2000), USA
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74 Alcohol is produced during the process of –
(A) Ascent of sap
(B) Photosynthesis
(C) Aerobic respiration
(D) Anaerobic respiration
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75 Canada Balsam, a mounting agent used to make permanent slides is obtained from the species of –
(A) Abies
(B) Cedrus
(C) Pinus
(D) Juniperus
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76 Stolon is a –
(A) Stem
(B) Root
(C) Underground stem
(D) Sub aerial modified stem
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77 What is a Rosie ?
(A) A transgenic goat
(B) A transgenic cow
(C) A transgenic sheep .
(D) A transgenic flower
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78 The edible part of litchi is –
(A) Mesocarp
(B) Thalamus
(C) Seed coat
(D) Aril
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79 Minimum number of meiotic divisions required to obtain 100 pollen grains of wheat-
(A) 25
(B) 50
(C) 100
(D) 150
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80 Red rust of tea is caused by –
(A) Green Algae
(B) Red Algae
(C) Fungi
(D) Brown Algae
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