A: Microspores and megaspores are produced in | vedclass

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(D) In gymnosperms,the term 'lax' is not standard terminology; however,the question refers to the strobilus (cone).Gymnosperms are generally heterospo

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Both Assertion and Reason are incorrect.

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(D) In gymnosperms,the term 'lax' is not standard terminology; however,the question refers to the strobilus (cone).Gymnosperms are generally heterosporous,producing microspores and megaspores.In many gymnosperms (like $Pinus$),male and female strobili are produced on the same plant (monoecious),but they are distinct structures.In $Cycas$,male and female cones are produced on different plants (dioecious).Since microspores and megaspores are produced in separate microsporangiate and megasporangiate strobili,the assertion that they are produced in the 'same lax' is incorrect.Therefore,both the Assertion and the Reason are incorrect.

$A$: Microspores and megaspores are produced in the same lax in gymnosperms.
$R$: Lax represents a compact strobilus which bears microsporophyll and megasporophyll.

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$A$: Microspores and megaspores are produced in the same lax in gymnosperms.$R$: Lax represents a compact strobilus which bears microsporophyll and megasporophyll.