Anatomy and Physiology

Biology

Quiz 47 :

Growth and Development

Quiz 47 :

Growth and Development

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Regarding human developmental biology, which of the following statements is (are) true?
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Answer:

D

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The normal phenomenon of "crossing over" occurs:
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Answer:

A

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The process of spermatogenesis forms _____ spermatozoa, each with _____ chromosomes.
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Answer:

B

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The main difference between oogenesis and spermatogenesis is that in oogenesis:
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After leaving the graafian follicle, the ovum lives approximately _____ day(s).
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Fertilization takes place in the:
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Implantation occurs during the _____ stage.
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The inner cell mass of the blastocyst contains the:
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The solid mass of cells formed when the zygote begins to divide is called the:
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The structure known as the "bag of waters" is the:
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Which of the following is not a function of the placenta?
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The normal length of gestation for humans is approximately _____ weeks.
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The chorion, which develops from the trophoblast, becomes:
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The secretion of human chorionic gonadotropin (hCG) by the placental tissue peaks about _____ weeks after fertilization.
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The function of human chorionic gonadotropin (hCG) is to:
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All organ systems are formed and functioning by the _____ month of fetal development.
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In the developing human embryo, the heart begins to beat at about _____ weeks.
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Which of the following is derived from mesoderm during embryonic development?
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The primary germ layer that forms many of the structures around the periphery of the body is the:
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Histogenesis may be defined as the process during which:
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