Question

How many of the following are incorrect
A. Floral formula shows cohesion and adhesion within parts of whorls and between whorls.
B. In banana, pineapple, pistia and crysanthemum, the lateral branches originate from the basal and underground portion of the main stem, grow horizontally beneath the soil, and then come out obliquely upward given rise to leafy shoots.
C. Photosynthesis is restricted to tendrils in opuntia and peas.

Option (1) 0 (2) 1 (3) 2 (4) 3

Answer 1

Option 3 is correct.

(A) Adhesion and cohesion within and between whorls are represented in floral formula. Adhesion between whorls is shown by curved line which joins fused whorls and adhesion within it is shown by parentheses.

(B) Banana, Pineapple and chrysanthemum are su.ckers(stem type) which give rise to lateral shoot underground and grows wedging upwards. But Pistia is an offset.

(C) Opuntia has Phylloclade for photosynthesis and In pea Plant, only upper leaves are modified in to tendrils so that intact leaves can perform photosynthesis.

Hence, (B) and (C) are in incorrect.