R.Q. is always less than one in

• wheat

• millets

• bean

• castor

Pencils are prepared from the wood of

• Pinus vinaster

• Juniperus virginiana

• Chamaecyparis piscifera

• Abies pindrow

53.

Ageing is retarded by

• ABA

• CKN

• GA

• C₂H₄

The form of pigment which inhibits germination is

• P₇₆₀

• P₇₃₀

• P₆₅₀

• All of these

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

The dormancy of seed is regulated by

• ABA

• Ethylene

• GA- 3

• Dihydrozeatin

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

• Anaphase

• Metaphase

• Prophase

• Interphase

Which one is not correct?

• Human - Ureotelic

• Birds - Uricotelic

• Lizards - Uricotelic

• Whale - Ammonotelic

Which one is not produced by aquaculture?

• oyster

• silkworm

• singhara

• frog

Progesterone is secreted by

• Corpus luteum

• Utreus

• Placenta

• Graafian follicle