1 | Page
DEVBIOL LE1 FINAL EXAM EXPERT
FEEDBACK LATEST AND COMPLETE
UPDATE GRADED A+
Because of chemoattractant produced by the genital
ridges - ANSWER-How PGCs know where to go?
5th Month of Embryonic Development - ANSWERWhen
does mitosis stops for female
2nd and 5th month of embryonic development -
ANSWER-When does rapid proliferation occur for
female
continous - ANSWER-Mitosis for males
Starts at puberty - ANSWER-Start of meiosis for males
starts early at birth - ANSWER-Start of mitosis for
females
,2 | Page
Reductional division - ANSWER-Meiosis 1
Leptotene - ANSWER-With 23 each for maternal and
paternal cells, "bouquet stage", the first stage of the
prophase of meiosis, during which each chromosome
becomes visible as two fine threads (chromatids).
Zygotene - ANSWER-the second stage of the prophase of
meiosis, following leptotene, during which homologous
chromosomes begin to pair.
Pachytene - ANSWER-the third stage of the prophase of
meiosis, following zygotene, during which the paired
chromosomes shorten and thicken, the two chromatids of
each separate, and exchange of segments between
chromatids may occur.
Diakinesis - ANSWER-Nuclear membrane breaks so
spindle fiber can attach to the chromosomes, gain and
exchange of new genetic components
,3 | Page
Haploid number of chromosome for each daughter cell
(23 each) - ANSWER-Result of telophase 1 Equational
division, separation of sister chromatids and daughter
cells are not totally similar genetically -
ANSWERMeiosis 2
Nondisjunction - ANSWER-failure of homologous
chromosomes to disjoin correctly during meiosis.
13,18,21 - ANSWER-Chromosome numbers prone to
abnormality
Klinefelter Syndrome (XXY) - ANSWER-A common
genetic condition where a male is born with an extra X
chromosome
corpus luteum - ANSWER-What is left when oocyte is
released
, 4 | Page
Puberty - ANSWER-What will lift off the first meiotic
arrest
Fertilization - ANSWER-What will lift off the second
meiotic arrest
Folliculogenesis - ANSWER-What is coupled with
oogenesis
Hormones - ANSWER-Governs the gradual investment,
thickening of granulosa cells, accompanied w/ gradual
maturation of oocyte
FSH (follicle stimulating hormone) - ANSWERTargets
granulosa cells for increase production
gonadotropic hormones (FSH and LH) -
ANSWERReleased by onset of puberty
DEVBIOL LE1 FINAL EXAM EXPERT
FEEDBACK LATEST AND COMPLETE
UPDATE GRADED A+
Because of chemoattractant produced by the genital
ridges - ANSWER-How PGCs know where to go?
5th Month of Embryonic Development - ANSWERWhen
does mitosis stops for female
2nd and 5th month of embryonic development -
ANSWER-When does rapid proliferation occur for
female
continous - ANSWER-Mitosis for males
Starts at puberty - ANSWER-Start of meiosis for males
starts early at birth - ANSWER-Start of mitosis for
females
,2 | Page
Reductional division - ANSWER-Meiosis 1
Leptotene - ANSWER-With 23 each for maternal and
paternal cells, "bouquet stage", the first stage of the
prophase of meiosis, during which each chromosome
becomes visible as two fine threads (chromatids).
Zygotene - ANSWER-the second stage of the prophase of
meiosis, following leptotene, during which homologous
chromosomes begin to pair.
Pachytene - ANSWER-the third stage of the prophase of
meiosis, following zygotene, during which the paired
chromosomes shorten and thicken, the two chromatids of
each separate, and exchange of segments between
chromatids may occur.
Diakinesis - ANSWER-Nuclear membrane breaks so
spindle fiber can attach to the chromosomes, gain and
exchange of new genetic components
,3 | Page
Haploid number of chromosome for each daughter cell
(23 each) - ANSWER-Result of telophase 1 Equational
division, separation of sister chromatids and daughter
cells are not totally similar genetically -
ANSWERMeiosis 2
Nondisjunction - ANSWER-failure of homologous
chromosomes to disjoin correctly during meiosis.
13,18,21 - ANSWER-Chromosome numbers prone to
abnormality
Klinefelter Syndrome (XXY) - ANSWER-A common
genetic condition where a male is born with an extra X
chromosome
corpus luteum - ANSWER-What is left when oocyte is
released
, 4 | Page
Puberty - ANSWER-What will lift off the first meiotic
arrest
Fertilization - ANSWER-What will lift off the second
meiotic arrest
Folliculogenesis - ANSWER-What is coupled with
oogenesis
Hormones - ANSWER-Governs the gradual investment,
thickening of granulosa cells, accompanied w/ gradual
maturation of oocyte
FSH (follicle stimulating hormone) - ANSWERTargets
granulosa cells for increase production
gonadotropic hormones (FSH and LH) -
ANSWERReleased by onset of puberty
