Question

micropropagation is an asexual method of ______.
a. developing herbaceous cuttings in a greenhouse setting
b. planting on a sterile agar gel or other nutrient - growing medium
c. growing tiny plants in flats covered with polyethylene film
d. preventing excessive growth of roots before planting occurs

Explanation:

Micropropagation is a technique in plant tissue culture (a part of Biology, a Natural Science subfield) where plants are grown on a sterile nutrient medium (like agar gel) under controlled conditions. Option a is about herbaceous cuttings (a different propagation method), option c is about growing in flats with film (not micropropagation), and option d is about root growth control (not related). So the correct option is b as it matches the definition of micropropagation.

Answer:

b. planting on a sterile agar gel or other nutrient - growing medium