Advertisements
Advertisements
प्रश्न
Angiosperms bearing unisexual flowers are said to be either monoecious or dioecious. Explain with the help of one example each.
Advertisements
उत्तर
Flowers that possess either stamens (male) or carpels (female) are called unisexual flowers. The plants possessing both male and female flowers in the same plant are are called monoecious and when male and female flowers are present on different plants, they are known as dioecious.
Example of monoecious plants: Cucurbits and coconut
Example of dioecious plants: Papaya and date palm
APPEARS IN
संबंधित प्रश्न
Draw a labelled mature stage of a dicotyledonous embryo.
Describe the formation of helobial endosperm
Why does endosperm development preceeds that of zygote ?
Describe the development of an endosperm in a viable seed. Why does endosperm development precedes embryo development?
______ is the first cell of female gametophytic generation in angiosperms.
In which of the following the primary endosperm nucleus undergoes free nuclear division or karyokinesis?
Identify the CORRECT statement/s from the following.
i. In post-fertilization changes within the ovule, the development of embryo is followed by the development of endosperm.
ii. Helobial endosperm is intermediate between cellular and nuclear type endosperm.
iii. Helobial endosperm is mostly observed in 72 families of dicots.
Ex-albuminous seeds differ from albuminous seeds in ____________.
If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be ______.
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are ______.
