Fertilization and Reproductive Biology
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Questions and Answers

What is the average weight gain per month during the first trimester of pregnancy?

  • 0.5 lbs.
  • 1 lbs. (correct)
  • 2 lbs.
  • 1.5 lbs.
  • Why does morning sickness occur during pregnancy?

  • Decrease in progesterone levels
  • Increase in hormones and decrease in peristalsis (correct)
  • Increase in blood volume
  • Increase in oxytocin levels
  • What is the primary reason for the increase in oxygen demand during pregnancy?

  • Uterus pushing on the diaphragm (correct)
  • Increased blood volume
  • Increased heart rate
  • Decreased lung function
  • What is the purpose of Montgomery glands during breastfeeding?

    <p>To prevent nipple chapping or cracking</p> Signup and view all the answers

    What is the name of the process by which the uterus returns to its original size after childbirth?

    <p>Involution</p> Signup and view all the answers

    What is the name of the score used to evaluate a newborn's health in the first few minutes after birth?

    <p>APGAR score</p> Signup and view all the answers

    What is the primary function of brown fat in newborns?

    <p>Temperature regulation</p> Signup and view all the answers

    What is the duration of the postpartum period?

    <p>6 weeks</p> Signup and view all the answers

    What is the name of the hormone responsible for milk production during breastfeeding?

    <p>Prolactin</p> Signup and view all the answers

    What is the type of milk produced during the first 3 days postpartum?

    <p>Colostrum</p> Signup and view all the answers

    What is the primary function of capacitation in sperm cells?

    <p>To enable the sperm cell's enzymes to penetrate the oocyte</p> Signup and view all the answers

    Why do most sperm cells die during fertilization?

    <p>Due to the acidic environment</p> Signup and view all the answers

    What happens to the oocyte after it is fertilized?

    <p>It becomes impenetrable to other sperm cells</p> Signup and view all the answers

    What is the result of two oocytes being released and fertilized?

    <p>Fraternal twins</p> Signup and view all the answers

    What is the purpose of the slow block mechanism?

    <p>To prevent multiple sperm cells from fertilizing the oocyte</p> Signup and view all the answers

    What is the result of fertilization?

    <p>A diploid zygote</p> Signup and view all the answers

    What is the term for the time it takes for the offspring to develop?

    <p>Gestation</p> Signup and view all the answers

    During which weeks of gestation is the offspring called an embryo?

    <p>Weeks 3-8</p> Signup and view all the answers

    What is the term for the cells of the blastocoel that become the embryo?

    <p>Totipotent</p> Signup and view all the answers

    What is the purpose of human chorionic gonadotropin (HCG) during implantation?

    <p>To allow the corpus luteum to survive</p> Signup and view all the answers

    What is the term for the condition in which the placenta covers the opening to the cervix?

    <p>Placenta previa</p> Signup and view all the answers

    During which weeks of gestation does the placenta develop?

    <p>Weeks 4-12</p> Signup and view all the answers

    What is the result of a lack of folate in the diet during pregnancy?

    <p>Spina bifida</p> Signup and view all the answers

    When can movement be felt during pregnancy?

    <p>Week 16</p> Signup and view all the answers

    What is the average weight of a newborn?

    <p>5.5-8.8 lbs.</p> Signup and view all the answers

    What is the hormone that helps loosen ligaments at the hip joint and dilate the cervix?

    <p>Relaxin</p> Signup and view all the answers

    What is the approximate amount of breast milk produced by females per infant?

    <p>1.5 liters</p> Signup and view all the answers

    What is the special property of breast milk that helps remove bilirubin from infants?

    <p>Laxative property</p> Signup and view all the answers

    What is the total number of chromosome pairs in humans?

    <p>23</p> Signup and view all the answers

    What is the term for the outward appearance and behavior of an individual?

    <p>Phenotype</p> Signup and view all the answers

    What is the term for a copy of a gene?

    <p>Allele</p> Signup and view all the answers

    What type of genes would both show in the phenotype, like the AB blood type?

    <p>Co-dominant genes</p> Signup and view all the answers

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