alleryStart learning →In megasporogenesis, how many of the four megaspores produced survive?
AAll four survive
BThree of them survive
CTwo of the four survive
DOnly one survives
Answer & Solution
Correct answer: D. Only one survives
1. Female gametophyte development has two phases, megasporogenesis and megagametogenesis.
2. In megasporogenesis a single cell in the diploid megasporangium undergoes meiosis to produce four megaspores.
3. Only one of those four survives.
4. The surviving haploid megaspore then goes through megagametogenesis.
5. This is the sharp contrast with the male side, where all four microspores go on to form pollen grains.
6. Assuming symmetry between the two sexes is exactly the trap this item sets.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 32 "Plant Reproduction", section 32.1 Reproductive Development and Structure_
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