Question

A gymnosperm leaf carries $16$ chromosomes. Number of chromosomes in its endosperm shall be

• A. $16$
• B. $23$
• C. $12$
• D. None of the above

Answer 1

The correct option is D None of the above

Gymnosperms are seed-bearing vascular plants, such as cycads, ginkgo, yews, and conifers, in which the ovules or seeds are not enclosed in an ovary. Endosperm in a gymnosperm plant is a haploid structure, which is formed without fusion of gametes and represent female gametophyte. Leaf of gymnosperm belongs to a diploid generation. 2n=16 i.e n=8. So, The number of chromosomes in the endosperm of the gymnosperm is 8.

So, the correct answer is 'None of the above '.