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Endosperm
Appears in
Concepts tested here
- Endosperm of coconut
- Free nuclear endosperm
- Ploidy of endosperm
All Questions
2015 AIPMT-II 1 question
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Coconut water from a tender coconut is:
2012 AIPMT-PRE 1 question
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The coconut water and the edible part of coconut are equivalent toCoconut water from tender coconut is free-nuclear endosperm, made up of thousands of nuclei.
The surrounding white kernel, the edible part, is cellular endosperm.
So both are endosperm.
2011 AIPMT-PRE 1 question
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What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?Root tip cells are somatic (diploid) cells, so 2n = 42.
Therefore n = $\frac{42}{2}$ = 21.
The aleurone layer is the outer, protein-rich layer of the endosperm of cereal grains.
Endosperm is formed by triple fusion (one male gamete + two polar nuclei), so it is triploid (3n).
Number of chromosomes in aleurone cells = 3n = 3 × 21 = 63.