Question
Biology Question on Applications of Biotechnology
Which of the following prevents the fall of fruits?
A
(A) GA3
B
(B) NAA
C
(C) Ethylene
D
(D) Zeatin
Answer
(B) NAA
Explanation
Solution
Explanation:
NAA (Naphthalene acetic acid) is a synthetic auxin. It is produced artificially. It inhibits abscission. It prevents the formation of a layer called the abscission layer which is formed between the organs like fruits, flowers, etc. and the stem. It is a layer of dead cells that causes fruit fall. As NAA prevents the formation of this layer, so it prevents the fall of fruits. Hence, the correct option is (B).