AIPMT MAINS 2012 Botany Bryophytes and Pteridophytes Assertion Reason Question
Read the following five statements (A - E) and answer as asked next to them.
(A) In Equisetum the female gametophyte is retained on the parent sporophyte.
(B) In Ginkgo male gametophyte is not independent. (C) The sporophyte in Riccia is more developed than that in Polytrichum.
(D) Sexual reproduction in Volvox is isogamous.
(E) The spores of slime molds lack cell walls.
How many of the above statements are correct?
Two
Three
Four
One
Correct Answer
Detailed Explanation
Equisetum - Pteridophytes - Free living gametophyte - Prothallus. Riccia - It is liverwort in which simplest sporophyte consists of capsule only while Polytrichum is moss in which sporophyte consists of foot seta & capsule. Volvox - oogamy is present. Slime moulds - Spores bear cell wall.
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