Ques. 1AIPMT 2012 (Mains)
Read the following five statements (A – E) and answer as asked next to them. How many of the above statements are correct?
- Two
- Three
- Four
- One
Answer
(4) One
Solution
(A) Equisetum is homosporous; its gametophyte (prothallus) is free-living, not retained on the sporophyte. ⇒ Incorrect.
(B) In Ginkgo (a gymnosperm), the male gametophyte (pollen grain) is not independent; it develops within the microsporangium and on the ovule. ⇒ Correct.
(C) As per NCERT, the sporophyte of mosses (e.g. Polytrichum) is more elaborate than that of liverworts like Riccia. ⇒ Incorrect.
(D) Sexual reproduction in Volvox is oogamous. ⇒ Incorrect.
(E) As per NCERT, the spores of slime moulds possess true walls. ⇒ Incorrect.
∴ Only one statement (B) is correct.
Answer: (4)