Which of the following stages of the fertilization process stimulates completion of meiosis II in the oocyte’s nucleus?     A. The sperm nucleus and egg nucleus combine to form the genetic material of the zygote     B. Sperm release enzymes to digest the protein layer of the secondary oocyte     C. The entry of a sperm into the secondary oocyte     D. The swimming of sperm from the vagina, through the uterus, and up to an oviduct

Q: What happens to the embryo after week 8? Select one: a. All organ formation has completed, so the…

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Q: Spermatozoa are haploid structures but an ovum is a diploid structure until it is undergoing the…

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Q: Part 2: Which step triggers release of enzymes by the head of a sperm cell which help dissolve the…

A: Sure, let's break down each step of fertilization and arrange them in the correct order:Penetration…

Q: Why is a second polar body expelled after fertilisation?   a)   To remove excess cytoplasm   b)…

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A: The binding of the sperm to the vitelline envelope of the egg is species-specific.

Q: At fertilization, a sperm contributes   a. a diploid nucleus.   b. mRNAs.   c. a centrosome.…

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Q: Which of the following events does not occur in spermatogenesis? (Circle the correct answer.) a.…

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Q: The change of successful fertilization is approximately 18% in every cycle. Why does this statistic…

A: c. Vagina is very acidic, killing many sperms. this statement seems to be false.

Q: During what embryonic stage can morphogenesis be seen?   Question 9 options:   a)  The morula…

A: Basically morphogenesis means the development of organs and organ system by the process of…

Q: Which cell contributes the necessary nutrition to the growing zygote? a a polar body b the egg…

A: Introduction: A zygote is a eukaryotic cell created when two gametes fertilise each other. The…

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Q: The individual cells are called blastomeres. Are all of the blastomeres the same size in these early…

A: After fertilisation of sperm & ovum, zygote s produced. This zygote then undergo various…

Q: label the following structures into the mammalian ovary. A. Tunica albuginea B. Primordial follicle…

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Q: In cleavage states what is blastomeres, 2-cell stage, 4-cell stage, and 8-cell stage.

A: The question asks to define the blastomere stage (2-celled, 4-celled, and 8-celled).

Q: If two sperm cells were able to fertilize the same oocyte, how many chromosomes would the zygote…

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A:

Q: 5. What is the name of the outer cell layer of the blastocyst and what does it give rise to? Does…

A: Introduction  Human fertilisation is the joining of a human egg and sperm, which takes place in the…

Q: Which of the following undergoes mitosis?   A. Oocyte B. Myocyte C. Spermatocyte D. Both A & C

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