Mention in detail of the number of chromosome in the
Somatic cell of a stourering plants in 8, What would be
number of chromosome in (a) egg, (b) endosperm, c) pollen
grain, (d) pollen tube.
Answers
Answer:
Explanation:
In this case the chromosome complement of the zygote would be AaBbCcDd. ... The normal haploid number for a human egg or sperm is 23 chromosomes (n = 23). ... The somatic (sporophyte) cells of plants commonly have more than two sets of ... After the pollen grain germinates into a pollen tube, the generative nucleus ...
12 chromosomes
The pollen tube contains 12 chromosomes and 3 haploid nuclei, so each nucleus will have 4 chromosomes.
54 chromosomes will be present in the Endosperm. It is the fact that the Endosperm of Angiosperms are triploid in nature i.e. 3n. The number of chromosomes in flower cell will be in diploid i.e. 2n. n= 36/2 = 18
Hence chromosomes in endosperm is (3n)=3×12=36 number of chromosomes in endosperm
Answer:
The pollen tube contains 12 chromosomes and 3 haploid nuclei, so each nucleus will have 4 chromosomes. If each sperm nucleus has 4 chromosomes, then the egg must also have 4 chromosomes and the diploid number for the plant must be 8.
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