Determine the correctness or otherwise of the following Assertion (a) and the Reason (r): Assertion: Somatic embryogenesis in plants is a two-step process comprising of embryo initiation followed by embryo production. Reason: Embryo initiation is independent of the presence of 2,4-dichlorophenoxyacetic acid whereas embryo production requires a high concentration of 2,4-dichlorophenoxyacetic acid. (A) both (a) and (r) are true and (r) is the correct reason for (a) (B) both (a) and (r) are true and (r) is not the correct reason for (a) (C) (a) is true but (r) is false (D) (a) is false but (r) is true
Determine the correctness or otherwise of the following Assertion (a) and the Reason (r):
Assertion: Somatic embryogenesis in plants is a two-step process comprising of embryo initiation followed by embryo production.
Reason: Embryo initiation is independent of the presence of 2,4-dichlorophenoxyacetic acid whereas embryo production requires a high concentration of 2,4-dichlorophenoxyacetic acid.
(A) both (a) and (r) are true and (r) is the correct reason for (a)
(B) both (a) and (r) are true and (r) is not the correct reason for (a)
(C) (a) is true but (r) is false
(D) (a) is false but (r) is true
Answer
Answer: (C) (a) is true but (r) is false
Somatic embryogenesis in plants does involve a two-step process of embryo initiation and production. However, embryo initiation typically requires 2,4-dichlorophenoxyacetic acid (a synthetic auxin) to induce the formation of embryos. The reason provided is incorrect as both stages usually involve the hormone.
Sourav
