ANSC 3040 Final Exam Questions With
Correct Answers
What characterizes an Ootid to go to a Zygote and what is this process
| | | | | | | | | | | | | |
called - CORRECT ANSWER✔✔-fusion of the two nuclei to one.
| | | | | | | | |
called Syngamy
|
What characterizes the change from a Zygote to a 2 cell embryo -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-the one cell embryo will undergo cleavage and
| | | | | | | | |
become a 2 cell | | |
What are 7 stages of early embryonic development - CORRECT
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ANSWER✔✔-1. Ootid |
2. Zygote
|
3. 2-cell embryo
| |
4. Morula
|
5. Early blastocyst
| |
6. Hatching Blastocyst
| |
7. Hatched blastocyst
| |
,What characterizes a morula - CORRECT ANSWER✔✔-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
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the trophectoderm form - CORRECT ANSWER✔✔-early blastocyst
| | | | | |
What are the 3 steps in the hatching process - CORRECT ANSWER✔✔-1.
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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
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uterus/uterine horn - CORRECT ANSWER✔✔-the blastocyst
| | | | |
Accumulation of maternal RNA and proteins accumulated in the
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ooplasm during.. and where - CORRECT ANSWER✔✔-during= oogenesis
| | | | | | |
in the ovary
| |
embryo genome activation and replacement of maternal-derived with
| | | | | | | |
embryo-derived transcripts starts to occur where - CORRECT| | | | | | | |
ANSWER✔✔-in the oviduct | |
,Embryo takes ownership of gene expression and cell biology of what
| | | | | | | | | | |
embryonic stage? where is this located? - CORRECT ANSWER✔✔-in the
| | | | | | | | | |
blastomeres
in the uterine horn
| | |
What happened during the fist round of cell differentiation in morulas
| | | | | | | | | | |
to an early blastocoele (3) - CORRECT ANSWER✔✔-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 ANSWER✔✔-in the ampulla
| | | | | | | |
What occurs after hatching in the embryo - CORRECT ANSWER✔✔-
| | | | | | | | |
conceptus development - differs among species though
| | | | | |
When does attachment and implantation occur in the primates and
| | | | | | | | | |
rodents - CORRECT ANSWER✔✔-shortly after hatching of the blastocyst
| | | | | | | |
, What type of implantation occurs in primates and rodents? how
| | | | | | | | | |
invasive is this - CORRECT ANSWER✔✔-hemochorial placentation
| | | | | |
Highly invasive |
What are the 5 phases of implantation in primates and rodents -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-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 ANSWER✔✔-hatched blastocysts are free
| | | | | | |
floating in the uterine lumen - may take days to weeks before
| | | | | | | | | | | |
implantation
What type of implantation occurs in bovine - CORRECT ANSWER✔✔-
| | | | | | | | |
shallow - strong adhesion of cells rather than actually physically going
| | | | | | | | | | |
into the endometrial layer
| | |
What are the 4 phases of implantation in bovines - CORRECT
| | | | | | | | | | |
ANSWER✔✔-1. shed ZP | |
2. elongation of conceptus
| | |
Correct Answers
What characterizes an Ootid to go to a Zygote and what is this process
| | | | | | | | | | | | | |
called - CORRECT ANSWER✔✔-fusion of the two nuclei to one.
| | | | | | | | |
called Syngamy
|
What characterizes the change from a Zygote to a 2 cell embryo -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-the one cell embryo will undergo cleavage and
| | | | | | | | |
become a 2 cell | | |
What are 7 stages of early embryonic development - CORRECT
| | | | | | | | | |
ANSWER✔✔-1. Ootid |
2. Zygote
|
3. 2-cell embryo
| |
4. Morula
|
5. Early blastocyst
| |
6. Hatching Blastocyst
| |
7. Hatched blastocyst
| |
,What characterizes a morula - CORRECT ANSWER✔✔-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 ANSWER✔✔-early blastocyst
| | | | | |
What are the 3 steps in the hatching process - CORRECT ANSWER✔✔-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 ANSWER✔✔-the blastocyst
| | | | |
Accumulation of maternal RNA and proteins accumulated in the
| | | | | | | | |
ooplasm during.. and where - CORRECT ANSWER✔✔-during= oogenesis
| | | | | | |
in the ovary
| |
embryo genome activation and replacement of maternal-derived with
| | | | | | | |
embryo-derived transcripts starts to occur where - CORRECT| | | | | | | |
ANSWER✔✔-in the oviduct | |
,Embryo takes ownership of gene expression and cell biology of what
| | | | | | | | | | |
embryonic stage? where is this located? - CORRECT ANSWER✔✔-in the
| | | | | | | | | |
blastomeres
in the uterine horn
| | |
What happened during the fist round of cell differentiation in morulas
| | | | | | | | | | |
to an early blastocoele (3) - CORRECT ANSWER✔✔-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 ANSWER✔✔-in the ampulla
| | | | | | | |
What occurs after hatching in the embryo - CORRECT ANSWER✔✔-
| | | | | | | | |
conceptus development - differs among species though
| | | | | |
When does attachment and implantation occur in the primates and
| | | | | | | | | |
rodents - CORRECT ANSWER✔✔-shortly after hatching of the blastocyst
| | | | | | | |
, What type of implantation occurs in primates and rodents? how
| | | | | | | | | |
invasive is this - CORRECT ANSWER✔✔-hemochorial placentation
| | | | | |
Highly invasive |
What are the 5 phases of implantation in primates and rodents -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-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 ANSWER✔✔-hatched blastocysts are free
| | | | | | |
floating in the uterine lumen - may take days to weeks before
| | | | | | | | | | | |
implantation
What type of implantation occurs in bovine - CORRECT ANSWER✔✔-
| | | | | | | | |
shallow - strong adhesion of cells rather than actually physically going
| | | | | | | | | | |
into the endometrial layer
| | |
What are the 4 phases of implantation in bovines - CORRECT
| | | | | | | | | | |
ANSWER✔✔-1. shed ZP | |
2. elongation of conceptus
| | |
