Question

If an onion has 16 chromosomes in its leaf
cell, how many chromosomes will be there
in its root cell and pollen grain.​

Answer 1

pollen grains in the somatic cells remains the same.show the leaf cell in the root cell of the onion are the somatic cells.the number of chromosomes here for both somatic cells of onion will be 16 chromosomes only.

but when we talk about the germ cell that is the pollen grain of the diploid organism which is the onion plant the chromosome number reduces to half by meiosis reduction division. hence the number of chromosomes their present will be eight only.

Answer 2

Answer:

Root and leaf cell of onion are diploid cells whereas pollen grains are haploid

hence root cell of onion will has 16 chromosomes and pollen grains will have 8 chromosome