Sexual Reproduction in Flowering Plants Question 83
83. If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be
(a) haploid
(b) triploid
(c) tetraploid
(d) pentaploid
Show Answer
Answer : d
Hints & Solutions
(d) The male gamete will be haploid (n). 2 polar nuclei will be diploid (2n). Endosperm formed by fusion of male gamete with two polar nuclei will be pentaploid.
$$ \underset{(n)}{\text { Male gamete }}+2 \underset{(2n)+ (2n)}{\text { polar nuclei }} \longrightarrow \underset{(5 n)}{\text { Endosperm }} $$
