Question

What would be the number of chromosomes in the cells of the aleuron layer in a plant species with B chromosomes in its synergids ?

(a) 24 

(b) 32 

(c) 8

(d) 16

Answer 1

Correct option (a) 24 

Explanation

Synergids are two, short-lived, haploid cells lying close to the egg in mature embryo sac of flowering plant ovule. While the endosperm is a triploid tissue formed after triple fusion. Thus, if the synergids have 8 chromosomes, the aleurone layer (part of endosperm) will have just triple of that of chromosomes in the synergids, i.e. 24 chromosomes.