Question

Identify the incorrect pair.

विकल्प

• sporopollenin – exine of pollen grain

• tapetum – nutritive tissue for developing microspores

• Nucellus – nutritive tissue for developing embryo

• obturator – directs the pollen tube into micropyle

Answer 1

Nucellus – nutritive tissue for developing embryo

Explanation:

• Nucellus provides nutrition to the developing embryo sac, not to the embryo.
• Once the embryo sac develops, the nucellus is used up or degenerates.