the evolution of c4 plants is probably one of the strategies to a minimise water loss b maximise co2 availability c both a and b d maximise o2 availability

The evolution of the C_(4) photosynthetic system is probably one of the strategies for maximising the availability of (A)____ while minimising (B)____ loss

Which of the following has popularised the PCR (polymerase chain reaction)? (a) Easy availability of DNA template (b) Availability of synthetic primers (c) Availability of cheap deoxyribonucleotides (d) Availability of ‘Thermostable’ DNA polymerase

Bending of stem/coleoptile towards light or shoot of potted plant placed near a window is due to (a) Greater oxygen availability to the tip (b) More auxin content on the shaded side (c) Greater light availability to tip (d) Availability of necessary warmth to the tip

In C_4 plants , CO_2 is first fixed in

the condition(s) under which cyclic photophosphorylation occurs is/are a. light of wavelength beyond 680 nm b. anaerobic conditions c. poor CO_2 availability

In a competition A, B and C are participating. The probability that A wins is twice that of B, the probability that B wins is twice that of C. find the probability that A losses.

In a plant Mangifera indica, gamete is transferred through (a) Water (b) Pollen (c) Chemicals (d) Both a & b

If one of the angles A,B,C of a triangle is not acute, show that cos^2A+cos^2B+cos^2C=1

Special feature of C_(4) plants is (A) Thin cuticle (B) Multilayered epidermis (C) Kranz anatomy (D) Both A and B

DCMU, (3,4-dichlorophenyl , 1-dimethyl urea, also called diuron) a potent herbicide , inhibits (a) O_(2) evolution (b) Photophosphorylation (c) Both a and b (d) oxidative phosphorylation