Question

7. By looking into the ploidy of given structures, find
the ploidy of O and plant.
Nucellus -4n; PEN - 8n|
(1) -4n, 0-6n (2) 0 - 6n, -4n
(3) 3 - 8n, Q-40 (4) Q - 4n, 3 - en​

Answer 1

Number 4 is correct answer

Add nucellus is diploid then ploidy of female plant is 4n

The endosperm or PEN is triploid, comprising two parts of female ( two haploid parts ) and one part of male ( one haploid part ). Thus the make haploid part in it is 4n and hence the make is of 8n ploidy.