In eggs which have very thick and resistant membrane e.g., fishes and insects sperm penetrate throug

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2.Human Reproduction

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In eggs which have very thick and resistant membrane e.g., fishes and insects sperm penetrate through a special canal called

Vitelline membrane

Jelly coat

Polar body

Micropyle

Solution

(d)Such egg are not directly penetrated by the sperm. Here in such cases the sperm must penetrate through as special canal called micropyle or outgrowth left in the egg membrane the receptor cone.

Standard 12

Biology

Which of the following cells secrete testicular hormones called androgens and form endocrine part of the testis?

normal

In a human foetus the limbs and digits develop by the end of

normal

The signals for parturition originates from the fully developed foetus and followed by placenta causing the mild contractions called

normal

Which of the following statement is wrong as regards to man

normal

In a simplest type of placenta the foetal blood is separated from the maternal blood by six barriers. How many barriers are lost in human placenta

normal

In eggs which have very thick and resistant membrane e.g., fishes and insects sperm penetrate through a special canal called

Solution

Similar Questions

Which of the following cells secrete testicular hormones called androgens and form endocrine part of the testis?

In a human foetus the limbs and digits develop by the end of

The signals for parturition originates from the fully developed foetus and followed by placenta causing the mild contractions called

Which of the following statement is wrong as regards to man

In a simplest type of placenta the foetal blood is separated from the maternal blood by six barriers. How many barriers are lost in human placenta

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