Reproductive capacity of a flowering plant can be appreciated by finding out the:
(A) Size of the embryo sac in the ovule
(B) Number of eggs in the embryo sac
(C) Size of eggs in the embryo sac
(D) Number of ovules in the ovary
Choose the most appropriate answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (B) and (D) only
The reproductive capacity of a flowering plant is the number of seeds it can form. Each egg, once fertilised, gives one embryo and so one seed; each ovule holds one embryo sac with one egg. So capacity depends on how many eggs and ovules there are.
(A) Size of the embryo sac in the ovule — Not a measure. A bigger embryo sac still holds only one egg.
(B) Number of eggs in the embryo sac — A measure. Each egg can become one embryo.
(C) Size of eggs in the embryo sac — Not a measure. Size does not change the count of seeds.
(D) Number of ovules in the ovary — A measure. Each ovule can become one seed; an ovary may have one ovule (wheat, mango) or many (papaya, orchids).