Question

If the number of chromosomes in the cells of the calyx is 16, how many chromosomes will be formed in the endosperm after double fertilisation?

Answer 1

Calyx cells are diploid (2n = 16), so n = 8

Endosperm is triploid (3n) after double fertilisation

Chromosomes in endosperm: 3 × 8 = 24

24 chromosomes will be formed in the endosperm.