Advertisements
Advertisements
Question
What is adventive polyembryony?
Advertisements
Solution
In adventive polyembryony, embryos may develop from somatic nucellus or integuments along with normal zygotic embryo.
RELATED QUESTIONS
Explain the different ways apomictic seeds can develop, Give an example of each.
State what is apomixis. Write its significance. How can it be commercially used?
Fill in the blanks:
The male whorl, called the ________ produces ________.
Fill in the blank:
________takes place when one male gamete and the egg fuse together. The fertilized egg grows into a seed from which the new plants can grow.
Fill in the blank:
________is the transfer of pollen grains from the anther of the flower to the stigma of the same or a different flower
Fill in the blank:
The whorl ________is green that protects the flower until it opens.
Match the column.
| Column - I (Structure before seed formation) |
Column - II (Structure after seed formation) |
||
| A. | Funiculus | I. | Hilum |
| B. | Scar of ovule | II. | Tegmen |
| C. | Zygote | III. | Testa |
| D. | Inner integument | IV. | Stalk of seed |
| V. | Embryo | ||
Give an account of polyembryony.
The occurrence of two or more embryos in one ovule is called ______
What is pollen grain?
