Embryology Test Questions with Correct Answers.

Embryology Test Questions with Correct
Answers
Sperm cannot fertilize an egg until they
A) Lose their acrosome.
B) Undergo capacitation.
C) Are activated by nurse cells of the vagina.
D) Are in the vagina for 3 days. Correct Answer-B


All of the following are true during oocyte activation, except that
A) Other sperm are prohibited from fertilizing the egg.
B) The ovum completes meiosis II.
C) The metabolic rate of the oocyte increases.
D) The cortical reaction occurs.
E) The ovum begins mitosis. Correct Answer-E


Polyspermy in humans results in
A) Twins.
B) Triplets.
C) Tetraploid adults.
D) A nonfunctional zygote.
E) Individuals with haploid cells Correct Answer-D


The process of cell division that occurs after fertilization is called

, A) Blastula ion.
B) Embryogenesis.
C) Cleavage.
D) Implantation.
E) Placentation. Correct Answer-C


The penetration of the endometrium by the blastocyst is referred to as
A) Embryogenesis.
B) Implantation.
C) Cleavage.
D) Fertilization.
E) Placentation Correct Answer-B


________ are identical cells that are produced by early cleavage.
A) Gastrulas
B) Amnions
C) Blastomeres
D) Blastulas
E) Morulas Correct Answer-C


The solid ball of cells that is formed after several rounds of cell division
following fertilization is called a
A) Gastrula.