Question:
Cleavage polyembryony occurs in
Cleavage polyembryony occurs in
Updated On: Jun 23, 2024
- Pinus
- Mini Cycas
- Cycas
- Ephedra
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The Correct Option is A
Solution and Explanation
Polyembryony is of common occurrence among the gymnosperms. This is possible because more than one archegonia are fertilized and more than one zygotes are formed. These develops into embryos, but only one of them succeeds in developing into a complete embryo. In the conifers there is a cleavage polyembryony. In this case all the four cells of the young embryo separate and develop into 4 embryos, but only one completely develop and others abort, eg Pinus.
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Concepts Used:
Sexual Reproduction
Sexual reproduction takes place in both plants and animals. In sexual reproduction, genetically diverse organisms or sphinx are built this happens when two individuals of unique sex are combined.
The offspring built by sexual reproduction are genetically diverse in nature and can embrace themselves in accordance with the climate and other adaptable conditions many multicellular organisms practice sexual reproduction.
There are four types of sexual reproduction:
- Allogamy
- Internal fertilization
- External fertilization
- Autogamy