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प्रश्न
Angiosperms bearing unisexual flowers are said to be either monoecious or dioecious. Explain with the help of one example each.
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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
Endosperm of angiosperm is __________.
(A) haploid
(B) diploid
(C) triploid
(D) tetraploid
Describe the formation of helobial endosperm
Describe the development of an endosperm in a viable seed. Why does endosperm development precedes embryo development?
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 ____________.
A diploid female plant and a tetraploid male plant are crossed. The ploidy of endosperm shall be ______.
If the endosperm cell of an angiosperm contains 24 chromosomes, the number of chromosomes in the root tip cells will be ______.
The coconut water from tender coconut is ______
The type of evolution where the central part is occupied by free nuclear and the peripheral part by cells is observed in ______.
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are ______.
