Assertion : Mammalian ova produces hyaluronidase. Reason : eggs of mammal are microlecithal and telo

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2.Human Reproduction

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Assertion : Mammalian ova produces hyaluronidase.

Reason : The eggs of mammal are microlecithal and telolecithal.

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

If the Assertion is correct but Reason is incorrect.

If both the Assertion and Reason are incorrect.

(AIIMS-2009)

Solution

Hyaluronidase, a hydrolytic enzyme is an acrosomal content in mammalian sperm. It helps at the time of fertilization during the penetration of the sperm into the ovum. Based on the amount of yolk mammalian eggs are alecithal means egg without yolk. Microlecithal eggs contain very little yolk e.g., sea urchin, starfish. On the basis of distribution of yolk telolecithal eggs are those eggs in which the yolk is concentrated towards the vegetal pole and cytoplasm and nucleus lie near the animal pole, e.g., birds and reptiles.

Standard 12

Biology

Which of the following decidua layer forms a partition between developing embryo and lumen at uterus?

normal

The part of fallopian tube closest to the ovary is

normal

During embryonic development, the establishment of polarity along anterior/ posterior, dorsal/ventral or medial/lateral axis is called

normal

(AIPMT-2003)

$A$ : The most immediate effect of $FSH$ is the maturation of existing late primary or secondary follicle.
$R$ : $A$ rising level of $FSH$ causes the developing egg within the follicle to complete the first meiotic division to form a secondary oocyte.

normal

Aldosterone is secreted by

normal

Assertion : Mammalian ova produces hyaluronidase. Reason : The eggs of mammal are microlecithal and telolecithal.

Solution

Similar Questions

Which of the following decidua layer forms a partition between developing embryo and lumen at uterus?

The part of fallopian tube closest to the ovary is

During embryonic development, the establishment of polarity along anterior/ posterior, dorsal/ventral or medial/lateral axis is called

$A$ : The most immediate effect of $FSH$ is the maturation of existing late primary or secondary follicle. $R$ : $A$ rising level of $FSH$ causes the developing egg within the follicle to complete the first meiotic division to form a secondary oocyte.

Aldosterone is secreted by

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Assertion : Mammalian ova produces hyaluronidase.

Reason : The eggs of mammal are microlecithal and telolecithal.

$A$ : The most immediate effect of $FSH$ is the maturation of existing late primary or secondary follicle.
$R$ : $A$ rising level of $FSH$ causes the developing egg within the follicle to complete the first meiotic division to form a secondary oocyte.