Question

In PINUS,endosperm cells have 30 chromosomes then how many chromosomes are present in sieve cells?

Answer 1

`60`

Explanation:

Pinus is a gymnosperm. Endosperm of gymnosperms is haploid.
∴ `n = 30`

Sieve cell is diploid.
Number of chromosomes in sieve cell `= 2n = 2 × 30 = 60`