MCQs on Cytokinins
Q. This is capable of delaying yellowing of leaves
(a) auxins
(b) ABA
(c) cytokinins
(d) gibberellins
Answer: : (c)
Q. In a culture medium, the use of an old sample of DNA is associated with the discovery of which of these?
(a) ABA
(b) Cytokinins
(c) Pantothanic acid
(d) Vitamin K
Answer: : (b)
Q. The hormone Cytokinin has the main function of
(a) causing dormancy
(b) cell movement
(c) participating in cell division
(d) induction of cell division and delay in senescence
Answer: : (d)
Q. This plant hormone is responsible for the ripening of fruits
(a) Cytokinins
(b) Auxin
(c) Ethylene
(d) None of the above
Answer: : (c)
Q. This causes delay in senescence
(a) ascorbic acid
(b) gibberellins
(c) auxins
(d) cytokinins
Answer: : (d)
Q. ___________ is a coconut milk factor
(a) cytokinin
(b) morphactin
(c) auxin
(d) none of these
Answer: : (a)
Q. Which of these can prevent the falling of leaves
(a) abscisic acid
(b) cytokinins
(c) auxin
(d) florigen
Answer: : (b)
Q. The first one to synthesize cytokinin was
(a) Thimman and Went
(b) Calvin and Bensan
(c) Letham
(d) Skoog and Miller
Answer: : (d)
Q. This hormone prevents the crop from falling
(a) ethylene
(b) auxin
(c) gibberellin
(d) cytokinin
Answer: : (b)
Q. The cambial tissue of Pinus radiata has
(a) cytokinin
(b) gibberellins
(c) auxins
(d) none of these
Answer: : (a)
