The chromosome number in gynoecium of hexaploid wheat is 42, then the chromosome number in endosperm and egg cell will be- 1)21 and 7 respectively 2)126 and 21 respectively 3)63 and 21 respectively 4)63 in each

Asked by Renuka Ganesh | 23rd Apr, 2014, 11:30: AM

Expert Answer:

Hexaploid wheat implies that it has six sets of chromosomes. The somatic cells are hexaploid, with six sets of chromosomes, 2n = 42 while the gametes are haploid , n = 21. Endosperm is triploid (3n) while the egg cell is haploid (n). So, the number of chromosomes in endosperm and egg cell will be 63 (3n=21×3=63) and 21 (n=21) respectively. 

Answered by  | 23rd Apr, 2014, 05:23: PM

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