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Questions and Answers
What is the primary function of the acrosomal reaction during fertilization?
What is the primary function of the acrosomal reaction during fertilization?
- To prepare the sperm for capacitation
- To fuse the sperm nucleus with the oocyte nucleus
- To release enzymes that break down the zona pellucida (correct)
- To penetrate the corona radiata and bind to the oocyte
What is the percentage of blastocysts that fail to implant in the uterine wall?
What is the percentage of blastocysts that fail to implant in the uterine wall?
- 50%-75% (correct)
- 75%-90%
- 25%-50%
- 90%-100%
What is the term for the barrier that forms after fertilization to prevent further sperm penetration?
What is the term for the barrier that forms after fertilization to prevent further sperm penetration?
- Zona pellucida
- Plasma membrane
- Fertilization membrane (correct)
- Corona radiata
During which stage of development do the inner cells of the conceptus become totipotent?
During which stage of development do the inner cells of the conceptus become totipotent?
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What is the term for the phenomenon where two oocytes are released and fertilized, resulting in fraternal twins?
What is the term for the phenomenon where two oocytes are released and fertilized, resulting in fraternal twins?
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What is the primary function of hCG during implantation?
What is the primary function of hCG during implantation?
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