Question

The male gametes of rice plant have 12 chromosomes in their nucleus. How many chromosome number will be in the female gamete, zygote and the cells of the seedling?

Answer 1

The female gamete of the rice plant will have 12 chromosomes, the zygote will have 24 chromosomes, and the cells of the seedling will also have 24 chromosomes. This is because gametes are haploid (n = 12) and the zygote formed after fertilization is diploid (2n = 24), which is also the chromosome number in the seedling’s cells.