Past Exam Questions

Question 1

Which species has a cotyledonary Placenta

Answer 1

Ruminant

Question 2

What is the key role of the zona reaction?

Answer 2

Polyspermy Block

Question 3

The nervous system develops from the…

Answer 3

Ectoderm

Question 4

The wall of the yolk sac is made up by

Answer 4

Hypoblast

Question 5

The allantois is connected to the

Answer 5

Hindgut

Question 6

Which species has caruncules?

Answer 6

Ruminant

Question 7

The implantation of the blastocyst can be…

Answer 7

Interstitial

Question 8

The mesoderm can differentiate further into…

Answer 8

Somites

Question 9

Which is the function of the Sertoli’s (sustentacular) cells?

Answer 9

Blood-testis barrier formation

Question 10

What is the function of the endotheliochorial placenta?

Answer 10

Establish connection between the embryo and maternal circulation

Question 11

Which species have hemochorial placenta?

Answer 11

Human

Question 12

What is a polar body?

Answer 12

The result of asymmetric oocyte division

Question 13

Trophoblast cells will further develop into…

Answer 13

Placenta

Question 14

Give three fetal membranes.

Answer 14

Amnion, Allantois, Yolk Sac

Question 15

The part of the sperm containing proteolytic enzymes to geth the zona pellucida is the…

Answer 15

Acrosome

Question 16

With the light microscope, the zone pellucide appears as a translucent membrane surrounding the…

Answer 16

Primary Oocyte, morula and very early blastocyst

Question 17

What is the primitive streak?

Answer 17

The site of involution of epiblast cells to form the mesoderm.

Question 18

I

Answer 18

Shell

Question 19

II

Answer 19

Blastoderm

Question 20

III

Answer 20

Yolk

Question 21

IV

Answer 21

Albumen

Question 22

V

Answer 22

Inner Shell Membrane

Question 23

VI

Answer 23

Chalaza

Question 24

VII

Answer 24

Air Sac

Question 25

VIII

Answer 25

Outer Shell Membrane