Question

The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seeding will be, respectively
A. 12,24,12
B. 24,12,12
C. 12,24,24
D. 24,12,24

Answer 1

Correct Answer - c
Chromosome number in male gamete of rice plants n=12 therefore choromosome number in female gamete would also be 12. Zygote is diploid as it is the product of fertilisation and the cells of the seedling would be meiocytes and other diploid cells. Hence, the chromosome number in both zygote and cells of seedling will be 2n=24