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DEVBIOL LE1 FINAL EXAM EXPERT
FEEDBACK LATEST AND COMPLETE
UPDATE GRADED A+
Oogonium -> primary oocyte -> 1 secondary oocyte and
first polar body -> Oocyte and second polar body -> 1
functional sex cell (ovum) - ANSWERCycle for female
Protamine - ANSWER-During spermatogenesis, histone
is replaced by which of the ,
to allow better packing of the condensed chromatin in the
head
spermatogonium - ANSWER-Which cell type is located
outside the blood-testis barrier
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Oogonium - ANSWER-Which of the following cells
normally participates in mitotic divisions?
In the female, meiosis begins during embryonic life; in
the male, meiosis begins at puberty. - ANSWERWhen
does meiosis begin in the female and in the male?
Diplotene - ANSWER-First meiotic arrest
Metaphase 2 - ANSWER-Second meiotic arrest
Follicle-stimulating hormone (FSH) produced by the
anterior lobe of the pituitary gland and testosterone
produced by the Leydig cells of the testis. - ANSWER-
Sertoli cells in the testis are stimulated by what two major
reproductive hormones
Estrogens, secreted by the ovary, support the
preovulatory. proliferative phase. From the time of
ovulation, progesterone is secreted in large amounts by
the corpus luteum and is responsible for the secretory
,3 | Page
phase, which prepares the endometrium for implantation
of an embryo - ANSWER-The actions of what hormones
are responsible for the changes in the endometrium
during the menstrual cycle?
Primordial Germ Cell - ANSWER-generative sex cells
also called germplasm
46 xy spermatogonium -> 46 xy primary spermatocyte ->
2 set of 23 each xy spermatocyte > 4 sets of 23 xy
spermatids -> 4 sex cells (spermatozoa) - ANSWER-
Cycle for male
Outside of gonads - ANSWER-Where does germ cells
arise
Yolk sac mesoderm - ANSWER-Location of PGC for
humans at 24 day post fert.
Epiblast of gastrula - ANSWER-Location of PGC for
mouse
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Inner cell mass (ICM) - ANSWER-Embryo porper
Trophoectoderm - ANSWER-Extra embryonic membrane
, formation of placenta
Amnion, Yolk sac, Allantois, Chorion - ANSWER-4 parts
of the extra-embyronic membrane
Epiblast and Hypoblast - ANSWER-Parts of the ICM
Endodermal, mesodermal - ANSWER-Layers of yolk sac
Endodermal, mesodermal - ANSWER-layers of allantois
Ectodermal, mesodermal - ANSWER-Layers of amnion
Allantois - ANSWER-Out-pocketing of the hindgut
DEVBIOL LE1 FINAL EXAM EXPERT
FEEDBACK LATEST AND COMPLETE
UPDATE GRADED A+
Oogonium -> primary oocyte -> 1 secondary oocyte and
first polar body -> Oocyte and second polar body -> 1
functional sex cell (ovum) - ANSWERCycle for female
Protamine - ANSWER-During spermatogenesis, histone
is replaced by which of the ,
to allow better packing of the condensed chromatin in the
head
spermatogonium - ANSWER-Which cell type is located
outside the blood-testis barrier
,2 | Page
Oogonium - ANSWER-Which of the following cells
normally participates in mitotic divisions?
In the female, meiosis begins during embryonic life; in
the male, meiosis begins at puberty. - ANSWERWhen
does meiosis begin in the female and in the male?
Diplotene - ANSWER-First meiotic arrest
Metaphase 2 - ANSWER-Second meiotic arrest
Follicle-stimulating hormone (FSH) produced by the
anterior lobe of the pituitary gland and testosterone
produced by the Leydig cells of the testis. - ANSWER-
Sertoli cells in the testis are stimulated by what two major
reproductive hormones
Estrogens, secreted by the ovary, support the
preovulatory. proliferative phase. From the time of
ovulation, progesterone is secreted in large amounts by
the corpus luteum and is responsible for the secretory
,3 | Page
phase, which prepares the endometrium for implantation
of an embryo - ANSWER-The actions of what hormones
are responsible for the changes in the endometrium
during the menstrual cycle?
Primordial Germ Cell - ANSWER-generative sex cells
also called germplasm
46 xy spermatogonium -> 46 xy primary spermatocyte ->
2 set of 23 each xy spermatocyte > 4 sets of 23 xy
spermatids -> 4 sex cells (spermatozoa) - ANSWER-
Cycle for male
Outside of gonads - ANSWER-Where does germ cells
arise
Yolk sac mesoderm - ANSWER-Location of PGC for
humans at 24 day post fert.
Epiblast of gastrula - ANSWER-Location of PGC for
mouse
, 4 | Page
Inner cell mass (ICM) - ANSWER-Embryo porper
Trophoectoderm - ANSWER-Extra embryonic membrane
, formation of placenta
Amnion, Yolk sac, Allantois, Chorion - ANSWER-4 parts
of the extra-embyronic membrane
Epiblast and Hypoblast - ANSWER-Parts of the ICM
Endodermal, mesodermal - ANSWER-Layers of yolk sac
Endodermal, mesodermal - ANSWER-layers of allantois
Ectodermal, mesodermal - ANSWER-Layers of amnion
Allantois - ANSWER-Out-pocketing of the hindgut
