BOTANY

Detailed explanation-1: -Therefore, if microspore mother cell has 2n= 24 chromosomes, the triploid endosperm will have 3n= 36 chromosomes. Thus, the correct answer is option A.

Detailed explanation-2: -A gymnosperm plant has 24 chromosomes in microspore mother cell.

Detailed explanation-3: -The cells of endosperm have 24 chromosomes.

Detailed explanation-4: -Number of chromosomes in meiocyte = 24 = 2n. Haploid number n = 12. Therefore the number of chromosomes will be n x 3 = 36 because the endosperm in angiosperms is triploid 3n as it is formed by the fusion of 2 polar nuclei n and one gamete. The meiocyte of rice has 24 chromosomes.

Detailed explanation-5: -An angiospermic plant is having 24 chromosomes in its leaf cells. The number of chromosomes present in pollen grains, female germ cell, respectively. Q. An angiospermic male plant with 24 chromosomes in its pollen mother cells is crossed with female plant bearing 24 chromosomes in its root cells.