EASY
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In which type of apomixis diploid embryo sac develops from diploid cells of nucellus?
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Important Questions on Sexual Reproduction in Flowering Plants
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Seed formation without fertilization in flowering plants involves the process of
MEDIUM
Statement - '': Apomixis is seen in a few flowering plants such as some species of Asteraceae and grasses.
Statement - '': Apomixis is a form of asexual reproduction that mimics sexual reproduction.
Statement - '': In some species of apomictic seeds, the diploid egg cell is formed without reduction division.
Choose the correct option.
MEDIUM
Match the Column I with Column II and select the correct option from the choice below:
| Column I | Column II |
| a. Polyembryony | i. Commelina |
| b. Dioecious | ii. Grass |
| c. Cleistogamous | iii. Date palm |
| d. Apomixis | iv. Citrus |
MEDIUM
Write a short note on apomixis.
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Nucellar polyembryony is seen in the species of
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During fertilisation in plants the male and female gametes unite, triggering the process of cell division followed by seed formation. A gene , expressed only in the male gamete, is responsible for eliciting rapid cell division. A researcher overexpressed the gene in the female gamete that resulted in the multiplication of the female gamete into an embryo and then the seed. The plants obtained from these seeds were genetically identical to the parent. This phenomenon is commonly seen in a few select plants naturally, and is known as
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Define the term apomixis.
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Define apomixis.
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Write one point of difference between apomixis and polyembryony.
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Listed below are different plant reproductive strategies.
I. Parthenocarpy
II. Syngamy
III. Apomixis
IV. Polyembryony
Which of them can give rise to a clonal progeny having the same genotype as that of the mother plant?
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Define the term apomixis.
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What is common between vegetative reproduction and apomixis?
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Apomixis is useful in plant breeding because it
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What is apomixis and what is its importance?
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What is common between vegetative reproduction and apomixis?
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Development of sporophyte from gametophyte is called :-
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The embryo may arise either from egg or some other cell of gametophyte in
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Observe the diagram given below and identify a and b.
