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(D) The condition described is known as the dikaryotic phase $(n+n)$.In the life cycle of Basidiomycetes,plasmogamy (fusion of protoplasm) results in

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Basidiomycetes

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(D) The condition described is known as the dikaryotic phase $(n+n)$.In the life cycle of Basidiomycetes,plasmogamy (fusion of protoplasm) results in a dikaryotic cell where two nuclei from different mating types exist together.These nuclei do not fuse immediately (karyogamy is delayed) but divide simultaneously as the mycelium grows,maintaining the dikaryotic condition in each new cell.Therefore,the fungus belongs to the class Basidiomycetes.

Column $I$	Column $II$	Column $III$
$1$. Phycocyanin	$p$. Brown algae	$x$. Batrachospermum
$2$. Phycoerythrin	$q$. Blue-green algae	$y$. Sargassum
$3$. Fucoxanthin	$r$. Red algae	$z$. Nostoc

$A$ fungus contains cells with two nuclei from different genomes. The nuclei do not fuse but divide independently and simultaneously as new cells are formed. It belongs to

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Match the following columns correctly:

Column $I$ Column $II$ Column $III$

$1$. Phycocyanin $p$. Brown algae $x$. Batrachospermum

$2$. Phycoerythrin $q$. Blue-green algae $y$. Sargassum

$3$. Fucoxanthin $r$. Red algae $z$. Nostoc

Select the incorrect pair from the following:

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