Fertilization and Conception Process
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Questions and Answers

What is the primary reason why most sperm cells die during fertilization?

  • The capacitation process
  • The acidic environment (correct)
  • The leukocytes in the female reproductive tract
  • The mucus in the female reproductive tract

How long can sperm cells survive inside the female reproductive tract?

  • 1 day
  • 1 month
  • 3-5 days (correct)
  • 1 week

What is the purpose of capacitation in fertilization?

  • To produce hormones
  • To kill the sperm cells
  • To fertilize the oocyte
  • To enable the sperm cells to penetrate the oocyte (correct)

What is the fast block in fertilization?

<p>The depolarization of the oocyte's plasma membrane (C)</p> Signup and view all the answers

What is the result of the fusion of the male and female chromosomes during fertilization?

<p>A diploid zygote with half male and half female chromosomes (B)</p> Signup and view all the answers

What is the result of the release and fertilization of two oocytes?

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

What is the term for the offspring from week 9 until birth?

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

Which stage of gestation lasts from weeks 3-8?

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

What is the function of the yolk sac?

<p>Provides nutrients, blood cells, and germ cells before the placenta is formed (B)</p> Signup and view all the answers

What is the term for the process of membranes wrapping on top of themselves to form a 3D structure?

<p>Embryonic folding (D)</p> Signup and view all the answers

Why do fetal and maternal blood not mix during pregnancy?

<p>Because cytotoxic T cells would attack the fetus (C)</p> Signup and view all the answers

What is the consequence of lack of folate in the diet during pregnancy?

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

What is the primary function of the placenta?

<p>To provide nutrients and oxygen to the fetus (C)</p> Signup and view all the answers

During which weeks does rapid weight gain occur in the fetus?

<p>Weeks 21-30 (A)</p> Signup and view all the answers

What is the function of relaxin during pregnancy?

<p>To loosen ligaments at the hip joint and dilate the cervix (C)</p> Signup and view all the answers

What is the average length of a newborn?

<p>20 inches (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 term for a person's outward appearance and behavior?

<p>Phenotype (A)</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 is the term for a gene that will always be expressed in the phenotype?

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

What is the genetic disorder caused by having three copies of chromosome 21?

<p>Down's syndrome (A)</p> Signup and view all the answers

What is the term for a person who carries a genetic disorder but does not necessarily exhibit the disorder themselves?

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

What is the normal weight gain for a mother during the first trimester?

<p>1 lb per month (C)</p> Signup and view all the answers

What is the main reason for morning sickness during pregnancy?

<p>Decrease in peristalsis (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 (C)</p> Signup and view all the answers

Why do varicose veins and hemorrhoids occur during pregnancy?

<p>Due to decreased blood flow (A)</p> Signup and view all the answers

What is the purpose of the Montgomery glands during breastfeeding?

<p>To secrete oil to prevent chapping (D)</p> Signup and view all the answers

What is the APGAR score used to evaluate?

<p>The baby's health in the first few minutes (A)</p> Signup and view all the answers

What is the name of the period that begins after the release of the placenta?

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

What is the main reason for the baby's difficulty in regulating temperature?

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

What is the purpose of the prolactin hormone during lactation?

<p>To increase milk production (A)</p> Signup and view all the answers

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

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

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