NEET Biology Plant Kingdom Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Plant Kingdom Topic Based

Question & Answer Discuss:

Conifers differ from grasses in the

(a) absence of pollen tubes

(b) lack of xylem tracheids

(c) formation of endosperm before fertilization

(d) production of seeds from ovules

Answer: (c)

Conifers (Gymnosperms) differ from grasses (angiosperms) because in gymnosperms the female gametophyte is actually endosperm which is made before fertilization. While in grasses endosperm is a tissue formed by the fertilization of second male gamete to polar nuclei. Moreover in gymnosperms the endosperm is a haploid tissue while in angiosperms it is triploid.

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