Question

Triploid tissue will be observed in -

• A. nucellus
• B. endosperm
• C. tapetum
• D. endothecium

Answer 1

Answer: (B)

Double fertilization is a unique characteristic observed in the Angiosperm group of plants. In this, two fertilizations are observed - $1^{st}$ between the female and male gametic cells forming zygote and $2^{nd}$ is between the second male gamete and polar nuclei forming the primary endosperm nucleus. The ploidy of PEN is 3n (male gamete $[1n]+$ polar nuclei $[2n]$ ).