Assertion (A): Fucus shows a diplontic life c | vedclass

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(C) Assertion $(A)$: $Fucus$ is a brown alga that exhibits a diplontic life cycle,where the diploid sporophyte is the dominant,photosynthetic phase. T

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$A$ is true,but $R$ is false.

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(C) Assertion $(A)$: $Fucus$ is a brown alga that exhibits a diplontic life cycle,where the diploid sporophyte is the dominant,photosynthetic phase. This statement is true.Reason $(R)$: In $Spirogyra$,the life cycle is haplontic. The only diploid stage is the zygote,which undergoes meiosis to form haploid spores. The zygote is not the dominant or active stage; rather,the haploid vegetative filament is the dominant stage. Therefore,the reason is false.Conclusion: Since $A$ is true and $R$ is false,the correct option is $C$.

Column $I$	Column $II$
$(a)$ Chlamydomonas	$(i)$ Moss
$(b)$ Cycas	$(ii)$ Pteridophyte
$(c)$ Selaginella	$(iii)$ Algae
$(d)$ Sphagnum	$(iv)$ Gymnosperm

Assertion $(A)$: $Fucus$ shows a diplontic life cycle.
Reason $(R)$: In $Spirogyra$,the diploid zygote is the dominant and active stage.

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Column $I$ Column $II$
$(a)$ Chlamydomonas $(i)$ Moss
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$(c)$ Selaginella $(iii)$ Algae
$(d)$ Sphagnum $(iv)$ Gymnosperm

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Assertion $(A)$: $Fucus$ shows a diplontic life cycle.Reason $(R)$: In $Spirogyra$,the diploid zygote is the dominant and active stage.