A: In Fucus,the sporophytic phase is limited | vedclass

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

Question

(D) $Fucus$ is a brown alga that exhibits a diplontic life cycle.In a diplontic life cycle,the diploid sporophyte is the dominant,photosynthetic,and i

Vedclass · Accepted Answer

$A$ is false and $R$ is true.

Vedclass · Answer

(D) $Fucus$ is a brown alga that exhibits a diplontic life cycle.In a diplontic life cycle,the diploid sporophyte is the dominant,photosynthetic,and independent phase of the plant.The gametophytic phase is represented by the single to few-celled gametophytes.However,the statement $A$ is true because the zygote is the only diploid stage in the life cycle of many algae,but specifically for $Fucus$,the entire plant body is diploid $(2n)$.Wait,let us re-evaluate: $Fucus$ is strictly diplontic,meaning the vegetative plant body is diploid $(2n)$. Therefore,the sporophytic phase is $NOT$ limited to the zygote; it is the dominant phase.Thus,$A$ is false and $R$ is false because the sporophyte is independent but the zygote is not the only sporophytic stage.Actually,in $Fucus$,the plant body is diploid,so the sporophyte is the dominant phase. Therefore,$A$ is false. $R$ is also false because the sporophyte is not just the zygote,and the zygote itself is not photosynthetic.

$A$: In $Fucus$,the sporophytic phase is limited to the zygote only.
$R$: In $Fucus$,the sporophytic phase is photosynthetic and independent.

Similar Questions

The red colour of 'Red Sea' is due to which of the following algae?

What is the term used for a plant body that lacks tissues and organs?

Thermal algae are forms which grow and survive:

In which of the following algal classes are starch and oil present as food storage materials?

The replicate septum of $Spirogyra$ is characterised by:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

$A$: In $Fucus$,the sporophytic phase is limited to the zygote only.$R$: In $Fucus$,the sporophytic phase is photosynthetic and independent.