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A:
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Choose the best
Polar bodies are produced during
a.
b. mitosis. e. None of these are correct.
c. spermatogenesis.
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- Which of the following is a major difference between spermatogenesis and oogenesis? a. Spermatogenesis involves meiosis, and oogenesis involves mitosis. b. Spermatogenesis is continuous, but oogenesis is variable. c. Spermatogenesis produces fewer gametes per precursor cell than oogenesis. d. All of these are significant differences between oogenesis and spermatogenesis.Choose the best of the following The fusion of a sperm and an egg cell initally produces which of thefollowing? a. blastocyst c. zygoteb. gamete d. stem cellWhich of these has the largest amount of DNA? a. Spermatogonial cells b. Primary spermatocyte c. Secondary spermmatocyte d. Sertoli cells e. First polar body
- Which statement about human reproduction is false?(A) Fertilization occurs in the oviduct.(B) Spermatogenesis and oogenesis require differenttemperatures.(C) An oocyte completes meiosis after a sperm penetrates it.(D) The earliest stages of spermatogenesis occur closest to thelumen of the seminiferous tubules.Which of the following structure is controlling the rate of spermatogenesis? a.Sertoli cells b.Leydig cells c.Spermatogonium d.SpermatidsAt puberty, the testes contain a finite number of cells and producean enormous number of sperm cells during the life span of a male.Explain why testes do not run out of spermatogonial cells
- in your own words: Why are the testes located outside of the body of organisms?Which of the following is part of the male reproductive system only?______________ A. bartolin glands B. ovaries C. uterus D. seminal vesiclesA previously infertile couple wishes to have a pregnancy but the man produces non-motile sperm.If it were possible to fertilize one of the woman's eggs by removing a sperm nucleus and injectingit into the egg, could this procedure ever produce viable offspring? Why or why not?
- The beginning of brain and spinal cord formation is termeda. cephalocaudal folding.b. organogenesis.c. neurulation.d. gastrulation.In human beings, after fertilisation, the structure which gets embedded in the wall of uterus is: (a) ovum (b) embryo (c) foetus (d) zygoteWhich of the following statements is/are true? A. Spermatogenesis is an example of asymmetric cell division. B. The formation of a mature egg occurs through symmetric cell division. C. Spermatogenesis and oogenesis are both examples of asymmetric cell division. D. Spermatogenesis involves only symmetric cell division whereas oogenesis involves asymmetric cell division.