Assertion : Like pteridophytes,sporophyte is | vedclass

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Question

(B) In both $Pteridophytes$ and $Gymnosperms$,the plant body is a $Sporophyte$ $(2n)$,which is the dominant phase of the life cycle.In $Pteridophytes$

Vedclass · Accepted Answer

Both assertion and reason are true and reason is not a correct explanation of the assertion.

Vedclass · Answer

(B) In both $Pteridophytes$ and $Gymnosperms$,the plant body is a $Sporophyte$ $(2n)$,which is the dominant phase of the life cycle.In $Pteridophytes$,the $Gametophyte$ (prothallus) is small,multicellular,and usually independent (free-living).However,in $Gymnosperms$,the $Gametophyte$ is highly reduced and dependent on the $Sporophyte$ for nutrition and protection.Therefore,the assertion is true because the $Sporophyte$ is indeed the dominant phase in both groups.The reason is also true because $Pteridophyte$ gametophytes are indeed independent.However,the independence of the gametophyte in $Pteridophytes$ does not explain why the $Sporophyte$ is dominant in $Gymnosperms$.Thus,both are true,but the reason is not the correct explanation for the assertion.

Column-$I$	Column-$II$
$A$. Christmas tree	$i$. Bennettites
$B$. Fossil plant	$ii$. Cycas
$C$. Ornamental plant	$iii$. Araucaria
$D$. Tallest tree	$iv$. Sequoia
	$v$. Thuja

Assertion : Like pteridophytes,sporophyte is a dominant phase in gymnosperms.
Reason : The gametophyte stages are independent in the pteridophytes.

Similar Questions

Match the following columns:
Column-$I$ Column-$II$
$A$. Christmas tree $i$. Bennettites
$B$. Fossil plant $ii$. Cycas
$C$. Ornamental plant $iii$. Araucaria
$D$. Tallest tree $iv$. Sequoia
$v$. Thuja

In bryophytes and pteridophytes,$.......$ is required for the transport of male gametes.

Select the incorrect statement.

Mosses and ferns are

Choose the correct option with respect to the features of different plant groups.
Group $\quad$ Embryo $\quad$ Gametes $\quad$ Asexual spore

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Assertion : Like pteridophytes,sporophyte is a dominant phase in gymnosperms.Reason : The gametophyte stages are independent in the pteridophytes.