Question

Assertion :Pinus displays the alternation of generations Reason: The gametophyte is dependent upon the diploid sporophyte phase

• A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
• B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
• C. If the assertion is true but the reason is false
• D. If both the assertion and reason are false

Answer 1

The correct option is B If both the assertion and reason are true but the reason is not a correct explanation of the assertion

Pinus show alternation of generations. The sporophyte phase is of long duration and is represented by the huge pine tree, which bears the staminate and ovulate cones. In Pinus meiotic division takes place in specialized cells of the ovules and the microsporangia, forming the gametes. The gamete forming structures are borne by the sporophyte and dependent on it for nutrition.

So, the correct answer is 'If both the assertion and reason are true but the reason is not a correct explanation of the assertion'