Question

In Pinus, endosperm cells have $30$ chromosomes then how many chromosomes are present in sieve cells

• A. $30$
• B. $60$
• C. $10$
• D. $15$

Answer 1

The correct option is B $60$

Pinus is Gymnosperm so its endosperm is haploid. n=30

And sieve tube =diploid=2n= 2*30=60

So the correct answer is option b=60