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Question: Cleavage produces daughter cells called ________.
Choices:
trophoblasts
blastocysts
morulae
blastomeres
Question: During what process does the amnion envelop the embryo?
Choices:
embryonic folding
gastrulation
implantation
organogenesis
Question: What would happen if the trophoblast did not secrete hCG upon implantation of the blastocyst?
Choices:
The cells would not continue to divide.
The corpus luteum would continue to produce progesterone and estrogen.
Menses would flush the blastocyst out of the uterus.
The uterine mucosa would not envelop the blastocyst.
Question: The conceptus, upon reaching the uterus, first ________.
Choices:
implants
divides
disintegrates
hatches
Question: Which primary germ layer gave rise to the cells that eventually became the central nervous system?
Choices:
endoderm
ectoderm
acrosome
mesoderm
Question: Sperm must first complete ________ to enable the fertilization of an oocyte.
Choices:
capacitation
the acrosomal reaction
the cortical reaction
the fast block
Question: The inner cell mass of the blastocyst is destined to become the ________.
Choices:
embryo
trophoblast
chorionic villi
placenta
Question: Fusion of pronuclei occurs during ________.
Choices:
spermatogenesis
ovulation
fertilization
capacitation
Question: As sperm first reach the oocyte, they will contact the ________.
Choices:
acrosome
corona radiata
sperm-binding receptors
zona pellucida
Question: Sperm and ova are similar in terms of ________.
Choices:
size
quantity produced per year
chromosome number
flagellar motility
Question: Although the male ejaculate contains hundreds of millions of sperm, ________.
Choices:
most do not reach the oocyte
most are destroyed by the alkaline environment of the uterus
it takes millions to penetrate the outer layers of the oocyte
most are destroyed by capacitation
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