Question

Which of the following is a correct sentence?

• A. In gymnosperms endosperm is diploid and in angiosperms it is haploid.
• B. In gymnosperms endosperm is haploid and in angiosperms it is triploid.
• C. In gymnosperms endosperm is haploid and in angiosperms it is diploid.
• D. Endosperm is triploid in both gymnosperm and angiosperms.

Answer 1

Answer: (B)

In case of gymnosperm, the endosperm is haploid and formed before fertilisation and in case of angiosperm the endosperm is triploid and formed after fertilisation. In angiosperms, two haploid polar nuclei fuse with haploid male gamete forming triploid endosperm.