Yolk plug is a structure in gastrula which is formed by protrusion of

English

Gujarati

Hindi

2.Human Reproduction

normal

The yolk plug is a structure in gastrula which is formed by the protrusion of

A

Endodermal cells

B

Endo-mesodermal cells

C

Ectodermal cells

D

Mesodermal cells

Solution

(a)By the end of gastrulation, blastocoel will be reduced. A yolk plug of endodermal origin closes the blastopore.

Standard 12

Biology

Share

Similar Questions

Repressor theory of activation of fertilization was given by

normal

The plasma membrane of oocyte and that of follicle cells show close connections at some points in the form of

normal

The part of fallopian tube which is closer to the ovary is…………

normal

The sperm produces substances of enzymatic nature called sperm lysin. In mammals, it is called

normal

The figure given below illustrates the changes taking place during the human menstruation cycle

Identify hormones $A, B, C, D$ and $E$ from the figures

In the boxes shown in the figure write the name of the hormone (or hormones) controlling the stage in the human menstrual cycle

normal