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NEET Biology Solved Question Paper 2005

Multiple Choice Questions

51.

R.Q. is always less than one in

wheat
millets
bean
castor

52.

Pencils are prepared from the wood of

Pinus vinaster
Juniperus virginiana
Chamaecyparis piscifera
Abies pindrow

53.

Ageing is retarded by

ABA
CKN
GA
C₂H₄

54.

The form of pigment which inhibits germination is

P₇₆₀
P₇₃₀
P₆₅₀
All of these

55.

In Hatch and Slack pathway

chloroplast are of same type
occurs in Kranz anatomy where mesophyll have small chloroplast whereas bundle sheath have granal chloroplast
occurs in Kranz anatomy when mesophyll have small chloroplast where as bundle sheath have larger, agranal chloroplast
Kranz anatomy where mesophyll cells are diffused

56.

The dormancy of seed is regulated by

ABA
Ethylene
GA- 3
Dihydrozeatin

57.

Colchicine prevents the mitosis of the cells at which of the following stage?

Anaphase
Metaphase
Prophase
Interphase

58.

Which one is not correct?

Human - Ureotelic
Birds - Uricotelic
Lizards - Uricotelic
Whale - Ammonotelic

59.

Which one is not produced by aquaculture?

oyster
silkworm
singhara
frog

60.
Progesterone is secreted by

Corpus luteum

Utreus

Placenta

Graafian follicle

Corpus luteum

Progesterone is a steroid hormone and main female sex hormone. It is secreted during the later half of the menstrual cycle in human females by temporary endocrine tissue, the corpus luteum. The luteinizing hormone (LH) of anterior pituitary brings about a rupture of the Graafian folllicle to release the ovum and changes the ruptured follicle into a yellow structure called corpus luteum, which secrets progesterone.