Question

If zygote of an angiosperm has 15 pairs of chromosomes, what is the number of chromosomes in PEN?

• A. 15
• B. 30
• C. 45
• D. 60

Answer 1

The correct option is C 45

Zygote is diploid and has 15 pairs of chromosomes. So, the gamete will have haploid number or 15 chromosomes.
PEN or Poly Endosperm Nucleus is triploid and contains 3 times the haploid or 45 chromosomes.
So, the answer is -45.