Question 1

Which structure must sperm penetrate first to reach the oocyte during fertilization?

Accepted Answer

Corona radiata

Question 2

What is the primary function of the acrosome enzyme during fertilization?

Accepted Answer

To digest the zona pellucida

Question 3

Which event directly triggers the completion of meiosis II in the oocyte?

Accepted Answer

Oocyte activation by sodium influx

Question 4

Amphimixis refers to which of the following processes?

Accepted Answer

Fusion of sperm and egg nuclei

Question 5

Which developmental stage is characterized by the formation of three germ layers?

Accepted Answer

Gastrulation

Question 6

Which of the following is a haploid cell?

Accepted Answer

Oocyte before fertilization

Question 7

Where does fertilization typically occur in the female reproductive tract?

Accepted Answer

Uterine tube (fallopian tube)

Question 8

Which hormone is primarily responsible for maintaining the placenta during pregnancy?

Accepted Answer

Human chorionic gonadotropin (hCG)

Question 9

Which of the following best describes Hardy-Weinberg equilibrium?

Accepted Answer

A population with random mating and no evolutionary forces acting

Question 10

Which of the following sexually transmitted infections is caused by a bacterium?

Accepted Answer

Chlamydia

Question 11

A couple is both heterozygous for a recessive genetic disorder. What is the probability that their child will inherit the disorder? Use a Punnett square to solve.

Accepted Answer

$$\frac{1}{4}$$

Question 12

Which extraembryonic membrane is responsible for gas exchange in the embryo?

Accepted Answer

Yolk sac

Question 13

Which stage of labor involves the delivery of the placenta?

Accepted Answer

Third stage

Question 14

Which of the following best describes the genotype of an individual with two different alleles for a gene?

Accepted Answer

Heterozygous

Question 15

Which contraceptive method is most effective at preventing both pregnancy and sexually transmitted infections?

Accepted Answer

Condoms

Question 16

Which hormone increases basal body temperature after ovulation?

Accepted Answer

Progesterone

Question 17

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

Accepted Answer

Production of gametes

Question 18

Which sexually transmitted infection is characterized by the presence of painless sores called chancres?

Accepted Answer

Syphilis

Question 19

If a population has 60% dominant allele ($$p) $$and 40% recessive allele ($$q$$), what is the expected frequency of heterozygotes under Hardy-Weinberg equilibrium?

Accepted Answer

$$2pq$$

Question 20

Which of the following is a viral sexually transmitted infection?

Accepted Answer

Herpes

Human Development, Reproductive System, and Genetics: Exam 4 Review Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards