Biology
Mention if the following statement are true
- Intine is the outer wall of pollen grain.
- Pollen tube enters ovule through micropyle.
- Zygote gives rise to embryo.
- Ovule becomes fruit.
- Dry sepals may persist in some fruits.
Related Questions
Match the following in Column I with those in Column II
Column I Column II Feathery stigma hanging out Rafflesia Different timings for maturation of anthers and stigma Entomophilous Pollination by elephant Wind-pollination Flowers produce nectar Dichogamy Complete the following statements
- Pollination is the process of transfer of …………… .
- The two kinds of pollination are …………… and …………… .
- For self-pollination, the flowers need not be …………… and showy.
- For self-pollination,…………… and …………… must mature at the same time.
- Self-pollination does not yield ……………varieties.
- In …………… pollination, there is much wastage of …………… .
Exine and intine are the parts of:
- Embryo sac
- Pollen grain
- Stigma
- Seed
Which one of the following is one of the characteristics of self-pollinated flowers?
- Flowers are large and showy
- Flowers remain closed and do not open
- Stigma and anthers mature at the same time
- Pollen is produced in very large quantities