Sexual Reproduction In Flowering Plants Ques 9
9. A diploid female plant and a tetraploid male plant are crossed. The ploidy of endosperm shall be
(a) tetraploid
(b) triploid
(c) diploid
(d) pentaploid
Show Answer
Answer : a
Hints & Solutions
(a) Diploid female plant will have 2 polar nuclei (each haploid) which one male gamete fuses to form triploid endosperm. So endosperm will be triploid.
$$ \underset{(2 n)}{\text { Male gamete }}+2 \underset{(n)\qquad (n)}{\text { polar nuclei }} \longrightarrow \underset{(3 n)}{\text { Endosperm }} $$
BETA
