Fertilization Process Overview
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Questions and Answers

What is the primary function of the acrosome in the fertilization process?

  • To allow the sperm to attach to the egg
  • To release enzymes that break down the egg's coating (correct)
  • To contain the genetic material of the sperm
  • To provide energy for the sperm to swim

    • What is the main effect of the cortical granule reaction during oocyte activation?

  • It triggers the release of calcium ions in the oocyte
  • It leads to the formation of the male and female pronuclei
  • It increases the permeability of the oocyte membrane
  • It causes the oocyte membrane to become impermeable to other sperm (correct)

    • What is the genetic basis of Klinefelter syndrome?

  • Abnormally high levels of circulating prolactin
  • A deficiency in the production of acrosome enzymes
  • A mutation in the GnRH neuron development
  • An additional X chromosome, resulting in 47 chromosomes (correct)

    • What is the primary cause of the reproductive dysfunction in Kallman syndrome?

    <p>Genetic mutations affecting the olfactory bulb</p> Signup and view all the answers

    What is the most common cause of hyperprolactinaemia?

    <p>Pituitary tumors</p> Signup and view all the answers

    Which of the following conditions is associated with a loss of sense of smell?

    <p>Kallman syndrome</p> Signup and view all the answers

    Which of the following is NOT a function of the testes?

    <p>Regulation of the menstrual cycle</p> Signup and view all the answers

    What is the role of the acrosome reaction in fertilization?

    <p>It allows the sperm to penetrate the zona pellucida of the oocyte</p> Signup and view all the answers

    What is the primary function of the hypothalamic-pituitary-gonadal (HPG) axis?

    <p>To regulate the development and function of the gonads</p> Signup and view all the answers

    What is the main characteristic of Klinefelter syndrome?

    <p>All of the above</p> Signup and view all the answers

    What is the primary cause of Kallmann syndrome?

    <p>Congenital defect in GnRH neuron development</p> Signup and view all the answers

    Which of the following is a key step in oocyte activation during fertilization?

    <p>Calcium influx into the oocyte</p> Signup and view all the answers

    What is the primary function of the acrosome in sperm?

    <p>To initiate the oocyte activation process</p> Signup and view all the answers

    Which of the following is a characteristic of Klinefelter syndrome?

    <p>Presence of an extra X chromosome in males</p> Signup and view all the answers

    What is the primary cause of Kallmann syndrome?

    <p>Abnormal development of the hypothalamus</p> Signup and view all the answers

    Which of the following environmental factors can negatively impact sperm production?

    <p>Radiation exposure</p> Signup and view all the answers

    What is the primary function of the hypothalamic-pituitary-gonadal (HPG) axis in male reproductive function?

    <p>Control of testosterone production and spermatogenesis</p> Signup and view all the answers

    Which of the following statements about androgen insensitivity syndrome is true?

    <p>It can lead to female body development despite XY chromosomes</p> Signup and view all the answers

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