GK
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Anisogametes differ either in structure, function or behaviour
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In oomycetes female gamete is smaller and motile, while male gamete is larger and nonmotile
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Chlamydomonas exhibits both isogamy and anisogamy and fucus shows oogamy
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Isogametes are similar in structure, function and behaviour
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Detailed explanation-1: -Option B is correct, because it is not that in oomycetes, female gamete is smaller and motile, while male gamete is larger and non-motile. It is actually the opposite, i.e., in oomycetes the female gamete is larger and non motile, while the male gamete is smaller and motile.
Detailed explanation-2: -Male gametes are non-motile and female gametes are motile in majority of the sexually reproducing organisms.
Detailed explanation-3: -Oomycetes show oogamous sexual reproduction in which large non-motile female gametes called eggs and male smaller gametes called sperms are produced.
Detailed explanation-4: -The male produces relatively smaller gamete called the ‘sperms’, while the female produces relatively larger gametes called the ‘ovum’, thereby exhibiting anisogamy (where there is a fusion of two dissimilar gametes). This takes place so as to increase the chances of male gamete meeting the female gamete.