A few statements describing certain features of reproduction are given below: i. Gametic fusion takes place

Longitudinal waves

(a) Work done = 0,  Reason- As the rock has not moved so displacement is zero.  (b) Work done = Positive  Reason – As the motion is in the direction of force applied.  (c)...

Asexual reproduction is that type of reproduction in which only single parent is involved. Asexual reproduction takes place by different methods like Budding, Binary fission etc.  → Budding: This type of...

Triple fusion is the fusion of the male gamete with two polar nuclei inside the embryo sac of the angiosperm. This process of fusion takes place inside the embryo sac....

(a) Rate = K[H2 O2 ][I] because second step is rate determining step.  (b) Order = 1 + 1 = 2 

(b) i and ii is correct.

(b) i and iii i. The male and female gametes are formed and released simultaneously iii. Water is the medium in a majority of organisms exhibiting external fertilization

The correct answer is (a) i and ii

d. (ii) and (iii) (ii) protoplasts from cells of different species can be fused  (iii) treatment of cells with cellulase and pectinase is mandatory 

(4) Syngamy and triple fusion