Question

If the diploid number of flowering plant is 36. what would be the chromosome number in its endosperm?

(a) 36 (b) 18 (c) 54 (d) 72

Answer 1

(c) Endosperm is a product of triple fusion. One male nuclei (n=18) fuses with diploid secondary nucleus (2n=36), so it becomes triploid structure (3n=54), So, ploidy of endosperm is (3n) and chromosomes will be 54.