If the diploid number of a flowering plant is 36. What would be the chromosome number in its endosperm?
(a) 36
(b) 54
(c) 18
(d) 72
Ans. (c) 54.
Explanation: Endosperm is formed through the fusion of a haploid male gamete and a diploid secondary nucleus. Consequently, the endosperm has a triploid nucleus, which will have three times the number of chromosomes as in a haploid nucleus.