Question 1

Which of the following best describes parthenogenesis?

Accepted Answer

A form of asexual reproduction where females produce offspring from unfertilized eggs

Question 2

In mammals, what is the primary function of the SRY gene?

Accepted Answer

To convert indifferent embryonic gonads into testes

Question 3

Which of the following is an example of sequential hermaphroditism?

Accepted Answer

A bluehead wrasse changing from female to male based on social cues

Question 4

Which vertebrate sex determination system is correctly matched with its group?

Accepted Answer

ZZ/ZW – birds

Question 5

Which of the following best explains why testes descend into the scrotum before birth in humans?

Accepted Answer

To allow sperm to develop at a cooler temperature than body temperature

Question 6

Which hormone is primarily responsible for maintaining the corpus luteum after fertilization in humans?

Accepted Answer

Human chorionic gonadotropin (hCG)

Question 7

A researcher observes a fish species in which all individuals are born female, but some later become male. What is this phenomenon called?

Accepted Answer

Protogyny

Question 8

Which of the following is a key adaptation of the amniotic egg that allowed vertebrates to reproduce on land?

Accepted Answer

Presence of extraembryonic membranes

Question 9

Which of the following best describes ovoviviparity?

Accepted Answer

Fertilized eggs are retained inside the parent, and nourishment comes from the egg yolk or cannibalism

Question 10

Which of the following is NOT a method of contraception that acts prior to implantation?

Accepted Answer

Vasectomy

Question 11

Which structure in the human sperm contains enzymes that help penetrate the egg?

Accepted Answer

Acrosome

Question 12

Which of the following best explains why only a few externally fertilized fish eggs survive to adulthood?

Accepted Answer

High predation and environmental hazards reduce survival

Question 13

Which hormone is released by the hypothalamus to stimulate the anterior pituitary in the regulation of human reproduction?

Accepted Answer

Gonadotropin-releasing hormone (GnRH)

Question 14

A woman is taking oral contraceptives containing analogues of progesterone and estrogen. What is the primary mechanism by which these prevent pregnancy?

Accepted Answer

They prevent follicle development and ovulation

Question 15

Which of the following is a correct sequence for the passage of sperm from production to ejaculation in humans?

Accepted Answer

Seminiferous tubules → epididymis → vas deferens → urethra

Question 16

Which of the following best describes the role of inhibin in the male reproductive system?

Accepted Answer

Inhibits FSH secretion from the anterior pituitary

Question 17

Which of the following is a real-world example of parental investment in amphibians?

Accepted Answer

A male frog carrying tadpoles on his back

Question 18

Which of the following is a distinguishing feature of monotreme reproduction compared to other mammals?

Accepted Answer

They lay eggs instead of giving birth to live young

Question 19

Which of the following best describes the function of the corpus luteum in the human ovarian cycle?

Accepted Answer

It produces estrogen and progesterone to maintain the endometrium

Question 20

A couple is considering permanent contraception. Which of the following procedures would prevent sperm from reaching the urethra in the male?

Accepted Answer

Vasectomy

Comprehensive Study Notes on Animal Reproduction and Human Reproductive Physiology

Study Guide - Practice Questions

Study Guide - Flashcards