In a flower, if the megaspore mother cell forms magaspores without undergoing meiosis and if one of the magaspores develops into an embryo sac, its nuclei would be

Options

A. haploid
B. diploid
C. a few haploid and a few diploid
D. with varying ploidy

Answer

B

Explanation

In some specise the diploid egg cell is formed without reduction division and develops into an embryo without fertilisation.
It is an asexual reproduction which occurs in the absence of pollinators or in extreme enviroments. In some species like citrus plants, nucellar cells surrounding the embryo sac start dividing and develops into embryos . It occurs in the megaspore mother cell without undergoing meiosis, and produces diploid embryo sac through mitotic divisions . It helps in the preservation of desirable characters for indefinite period. ,brgt Thus , it can be concluded that apomictic species produce diploid cells . Haploid cells will be formed during sexual reproduction when cell will undergo meiosis and option 'c' and 'd' is not shown by megaspore mother cell.