A: Microspores and megaspores are produced in | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

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

Vedclass · Accepted Answer

Both Assertion and Reason are incorrect.

Vedclass · Answer

(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.

Similar Questions

'Chilgoza', a gymnospermic seed that is eaten as a dry fruit, is produced by:

In $Pinus$,only the lower part of the oospore is concerned with the development of the embryo. Such development is known as:

Pinus seed is originated in

In $Cycas$,specialized roots are associated with nitrogen-fixing cyanobacteria. These roots are called .....

Transfusion tissue is found in

Vedclass Test Series

Exam Paper Generator

Online Exam Module

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