Question

Which of the following is the correct sequence of events of sexual reproduction in a flower?

• A. Pollination, fertilisation, seedling, embryo
• B. Seedling, embryo, fertilisation, pollination
• C. Pollination, fertilisation, embryo, seedling
• D. Embryo, seedling, pollination, fertilisation

Answer 1

The correct option is C Pollination, fertilisation, embryo, seedling

Sequence of events of sexual reproduction in flowers are:
(1) Pollination- transfer of pollen to stigma.
(2) Fertilization- fusion of male gamete and egg cell produce zygote and fusion of polar nuclei with male gamete produce triploid endosperm.
(3) Embryo formation- zygote divides many time by mitosis and produces embryo.
(4) Seedling- embryo differentiate and becomes plumule, radicle and one or two cotyledons. Endosperm divides by mitosis to produce endosperm tissue which is food store. Integuments surrounding embryo sac forms testa (seed coat).

Therefore, the correct answer is option C.