MEDIUM
Earn 100
What is extra embryonic membrane?
Important Questions on Reproduction - The generating system
MEDIUM
What is "Capacitation" of sperms ?
MEDIUM
Statement I : Penetration of sperm into ovum is a chemical process
Statement II : Acrosome of sperm secretes hyaluronidase which dissolves vitelline membrane of ovum
The correct option among the following is
EASY
During oogenesis in mammals, the second meiotic division occurs
EASY
The amnion of mammalian embryo is derived from
EASY
Several hormones like hCG, hPL, estrogen, progesterone are produced by
EASY
Hormones secreted by the placenta to maintain pregnancy are
EASY
During fertilization, acrosome of sperm releases
EASY
Meiotic division of the secondary oocyte is completed
EASY
Capacitation occurs in
EASY
Select the correct option describing gonadotropin activity in a normal pregnant female:
EASY
In human females, meiosis-II is not completed until?
EASY
Capacitation refers to changes in the:
MEDIUM
Fertilization in humans is practically feasible only if:
HARD
Study the following:
| S. No. | Foetal membranes in man | Formed by | Function |
| I | Yolk sac | Splanchnopleure | Not useful for nutrition |
| II | Allantois | Splanchnopleure | Store nitrogenous wastes |
| III | Amnion | Somatopleure | Form placenta |
| IV | Chorion | Splanchnopleure | Prevent dessication of embryo |
Among the above, the correct combinations are:
EASY
The diagram given below is that of a developing human foetus. Study the diagram and then answer the questions that follow:
Explain the significance of the part numbered in the diagram.
HARD
What are the four extraembryonic membranes?
MEDIUM
How does human placental lactogen facilitate the growth of the fetus in pregnant mother?
HARD
Mark the correct sequence regarding the origin of primordial germ cells and their migration to gonads.
EASY
Which of the following options is true with respect to describing gonadotropin activity in a normal pregnant female?
EASY
Human chorionic gonadotropin is secreted from corpus luteum.
