ANSC 3040 Final EXAM QUESTIONS |\ |\ |\ |\ |\
WITH ANSWERS |\
What characterizes an Ootid to go to a Zygote and what
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
is this process called - CORRECT ANSWERS ✔✔fusion of
|\ |\ |\ |\ |\ |\ |\ |\ |\
the two nuclei to one.
|\ |\ |\ |\
called Syngamy |\
What characterizes the change from a Zygote to a 2 cell
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
embryo - CORRECT ANSWERS ✔✔the one cell embryo will
|\ |\ |\ |\ |\ |\ |\ |\ |\
undergo cleavage and become a 2 cell
|\ |\ |\ |\ |\ |\
What are 7 stages of early embryonic development -
|\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔1. Ootid |\ |\ |\
2. Zygote
|\
3. 2-cell embryo
|\ |\
4. Morula
|\
5. Early blastocyst
|\ |\
6. Hatching Blastocyst
|\ |\
7. Hatched blastocyst
|\ |\
,What characterizes a morula - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔when you can no longer count the amount of cells in
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the embryo
|\
What stage of embryonic development is when the inner
|\ |\ |\ |\ |\ |\ |\ |\ |\
cell mess and the trophectoderm form - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔early blastocyst |\ |\
What are the 3 steps in the hatching process - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔1. blastocyst growth and fluid accumulation
|\ |\ |\ |\ |\ |\
2. production of enzymes by the trophoblast
|\ |\ |\ |\ |\ |\
3. contraction of the blastocyst
|\ |\ |\ |\
What is the only stage of embryonic development that
|\ |\ |\ |\ |\ |\ |\ |\ |\
occurs in the uterus/uterine horn - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\
✔✔the blastocyst |\
Accumulation of maternal RNA and proteins accumulated |\ |\ |\ |\ |\ |\ |\
in the ooplasm during.. and where - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔during= oogenesis |\
in the ovary
|\ |\
embryo genome activation and replacement of maternal-
|\ |\ |\ |\ |\ |\
derived with embryo-derived transcripts starts to occur
|\ |\ |\ |\ |\ |\ |\
where - CORRECT ANSWERS ✔✔in the oviduct
|\ |\ |\ |\ |\ |\
,Embryo takes ownership of gene expression and cell |\ |\ |\ |\ |\ |\ |\ |\
biology of what embryonic stage? where is this located? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔in the blastomeres |\ |\ |\ |\
in the uterine horn
|\ |\ |\
What happened during the fist round of cell differentiation
|\ |\ |\ |\ |\ |\ |\ |\
in morulas to an early blastocoele (3) - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔1. compactions of the morula and cells that |\ |\ |\ |\ |\ |\ |\ |\ |\
are in the outer layer of the embryo will form tight
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
junctions and form a layer of trophectoderm cells (creates |\ |\ |\ |\ |\ |\ |\ |\
the ICM in the blastocyst)
|\ |\ |\ |\ |\
2. outer layers of of the compacted morula cells start to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
secrete a lot of Na and send it to the middle part |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
3. this Na will attract fluid and will create the blastocoele -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
fill it with mostly water
|\ |\ |\ |\ |\
Where will fertilization occur - CORRECT ANSWERS ✔✔in
|\ |\ |\ |\ |\ |\ |\ |\
the ampulla |\
What occurs after hatching in the embryo - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔conceptus development - differs among |\ |\ |\ |\ |\ |\
species though |\
, When does attachment and implantation occur in the
|\ |\ |\ |\ |\ |\ |\ |\
primates and rodents - CORRECT ANSWERS ✔✔shortly
|\ |\ |\ |\ |\ |\ |\
after hatching of the blastocyst
|\ |\ |\ |\
What type of implantation occurs in primates and
|\ |\ |\ |\ |\ |\ |\ |\
rodents? how invasive is this - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\
✔✔hemochorial placentation |\
Highly invasive |\
What are the 5 phases of implantation in primates and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
rodents - CORRECT ANSWERS ✔✔1. shedding of ZP
|\ |\ |\ |\ |\ |\ |\
2. pre-contact blastocyst orientation
|\ |\ |\
3. apposition cellular contacts
|\ |\ |\
4. adhesion
|\
5. penetration of endometrium
|\ |\ |\
What happens to hatched blastocysts in bovine and
|\ |\ |\ |\ |\ |\ |\ |\
howdoes that affect implantation - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔hatched blastocysts are free floating in the uterine
|\ |\ |\ |\ |\ |\ |\ |\
lumen - may take days to weeks before implantation
|\ |\ |\ |\ |\ |\ |\ |\
What type of implantation occurs in bovine - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔shallow - strong adhesion of cells rather
|\ |\ |\ |\ |\ |\ |\ |\
than actually physically going into the endometrial layer
|\ |\ |\ |\ |\ |\ |\
WITH ANSWERS |\
What characterizes an Ootid to go to a Zygote and what
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
is this process called - CORRECT ANSWERS ✔✔fusion of
|\ |\ |\ |\ |\ |\ |\ |\ |\
the two nuclei to one.
|\ |\ |\ |\
called Syngamy |\
What characterizes the change from a Zygote to a 2 cell
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
embryo - CORRECT ANSWERS ✔✔the one cell embryo will
|\ |\ |\ |\ |\ |\ |\ |\ |\
undergo cleavage and become a 2 cell
|\ |\ |\ |\ |\ |\
What are 7 stages of early embryonic development -
|\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔1. Ootid |\ |\ |\
2. Zygote
|\
3. 2-cell embryo
|\ |\
4. Morula
|\
5. Early blastocyst
|\ |\
6. Hatching Blastocyst
|\ |\
7. Hatched blastocyst
|\ |\
,What characterizes a morula - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔when you can no longer count the amount of cells in
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the embryo
|\
What stage of embryonic development is when the inner
|\ |\ |\ |\ |\ |\ |\ |\ |\
cell mess and the trophectoderm form - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔early blastocyst |\ |\
What are the 3 steps in the hatching process - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔1. blastocyst growth and fluid accumulation
|\ |\ |\ |\ |\ |\
2. production of enzymes by the trophoblast
|\ |\ |\ |\ |\ |\
3. contraction of the blastocyst
|\ |\ |\ |\
What is the only stage of embryonic development that
|\ |\ |\ |\ |\ |\ |\ |\ |\
occurs in the uterus/uterine horn - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\
✔✔the blastocyst |\
Accumulation of maternal RNA and proteins accumulated |\ |\ |\ |\ |\ |\ |\
in the ooplasm during.. and where - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔during= oogenesis |\
in the ovary
|\ |\
embryo genome activation and replacement of maternal-
|\ |\ |\ |\ |\ |\
derived with embryo-derived transcripts starts to occur
|\ |\ |\ |\ |\ |\ |\
where - CORRECT ANSWERS ✔✔in the oviduct
|\ |\ |\ |\ |\ |\
,Embryo takes ownership of gene expression and cell |\ |\ |\ |\ |\ |\ |\ |\
biology of what embryonic stage? where is this located? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔in the blastomeres |\ |\ |\ |\
in the uterine horn
|\ |\ |\
What happened during the fist round of cell differentiation
|\ |\ |\ |\ |\ |\ |\ |\
in morulas to an early blastocoele (3) - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔1. compactions of the morula and cells that |\ |\ |\ |\ |\ |\ |\ |\ |\
are in the outer layer of the embryo will form tight
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
junctions and form a layer of trophectoderm cells (creates |\ |\ |\ |\ |\ |\ |\ |\
the ICM in the blastocyst)
|\ |\ |\ |\ |\
2. outer layers of of the compacted morula cells start to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
secrete a lot of Na and send it to the middle part |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
3. this Na will attract fluid and will create the blastocoele -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
fill it with mostly water
|\ |\ |\ |\ |\
Where will fertilization occur - CORRECT ANSWERS ✔✔in
|\ |\ |\ |\ |\ |\ |\ |\
the ampulla |\
What occurs after hatching in the embryo - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔conceptus development - differs among |\ |\ |\ |\ |\ |\
species though |\
, When does attachment and implantation occur in the
|\ |\ |\ |\ |\ |\ |\ |\
primates and rodents - CORRECT ANSWERS ✔✔shortly
|\ |\ |\ |\ |\ |\ |\
after hatching of the blastocyst
|\ |\ |\ |\
What type of implantation occurs in primates and
|\ |\ |\ |\ |\ |\ |\ |\
rodents? how invasive is this - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\
✔✔hemochorial placentation |\
Highly invasive |\
What are the 5 phases of implantation in primates and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
rodents - CORRECT ANSWERS ✔✔1. shedding of ZP
|\ |\ |\ |\ |\ |\ |\
2. pre-contact blastocyst orientation
|\ |\ |\
3. apposition cellular contacts
|\ |\ |\
4. adhesion
|\
5. penetration of endometrium
|\ |\ |\
What happens to hatched blastocysts in bovine and
|\ |\ |\ |\ |\ |\ |\ |\
howdoes that affect implantation - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔hatched blastocysts are free floating in the uterine
|\ |\ |\ |\ |\ |\ |\ |\
lumen - may take days to weeks before implantation
|\ |\ |\ |\ |\ |\ |\ |\
What type of implantation occurs in bovine - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔shallow - strong adhesion of cells rather
|\ |\ |\ |\ |\ |\ |\ |\
than actually physically going into the endometrial layer
|\ |\ |\ |\ |\ |\ |\
