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Question

In majority of sexually reproducing organisms, the gametes produced are of two morphologically distinct types called

A
Antherozoids
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B
Heterosomes
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C
Heterogametes
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D
Homogametes
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Solution

The correct option is C Heterogametes
The male gametes formed in algae, fungi, bryophytes and pteridophytes are known as antherozoids.

Heterosomes are the pair of chromosomes that are dissimilar in appearance and determine the sex of an organism, e.g., X and Y chromosomes in humans.

When the gametes produced in an organism are morphologically different then they are known as heterogametes. E.g, heterogametes in humans.

When the different types of gametes produced by an organism are morphologically similar then they are called homogametes or isogametes, e.g, homogametes in Cladophora.

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