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 (A)</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 (D)</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 (B)</p> Signup and view all the answers

What is the primary function of brown fat in newborns?

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

What is the duration of the postpartum period?

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

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

<p>Prolactin (B)</p> Signup and view all the answers

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

<p>Colostrum (B)</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 (D)</p> Signup and view all the answers

Why do most sperm cells die during fertilization?

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

What happens to the oocyte after it is fertilized?

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

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

<p>Fraternal twins (A)</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 (D)</p> Signup and view all the answers

What is the result of fertilization?

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

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

<p>Gestation (C)</p> Signup and view all the answers

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

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

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

<p>Totipotent (C)</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 (A)</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 (A)</p> Signup and view all the answers

During which weeks of gestation does the placenta develop?

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

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

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

When can movement be felt during pregnancy?

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

What is the average weight of a newborn?

<p>5.5-8.8 lbs. (B)</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 (A)</p> Signup and view all the answers

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

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

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

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

What is the total number of chromosome pairs in humans?

<p>23 (A)</p> Signup and view all the answers

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

<p>Phenotype (C)</p> Signup and view all the answers

What is the term for a copy of a gene?

<p>Allele (B)</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 (B)</p> Signup and view all the answers

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