PHGY 216 Human Physiology| MODULE 2 —
REPRODUCTIVE PHYSIOLOGY MCQ option solution
question with explanation |ACTUAL POSSIBLE 2026
Queen's University
MODULE 2 — REPRODUCTIVE PHYSIOLOGY
SECTION 2.1 — Introduction to Reproductive Physiology
1. The primary purpose of the reproductive system is:
A. Maintain homeostasis
B. Ensure species continuation
C. Control blood glucose
D. Produce ATP
Answer: B
Explanation: The reproductive system exists for species survival, not individual survival..pdf).pdf)
2. Gametes are described as:
A. Diploid cells
B. Haploid cells
C. Somatic cells
D. Embryonic stem cells
Answer: B
Explanation: Gametes contain half the chromosome number (haploid)..pdf).pdf)
3. Genetic sex is determined at:
A. Birth
,B. Conception
C. Puberty
D. Week 7 of development
Answer: B
Explanation: Genetic sex depends on the sperm’s chromosome (X or Y) at fertilization..pdf)
4. Gonadal sex depends on:
A. Maternal hormones
B. Presence of a Y chromosome
C. Thyroid hormone levels
D. Fetal movement
Answer: B
Explanation: Presence of SRY on Y chromosome causes testes development..pdf)
5. Phenotypic sex depends on:
A. Gamete size
B. Gonadal hormones
C. Number of mitochondria
D. Maternal antibodies
, Answer: B
Explanation: Androgens from testes determine phenotypic male characteristics..pdf)
6. SRY gene triggers production of:
A. Estrogen
B. H-Y antigen
C. Progesterone
D. Oxytocin
Answer: B
Explanation: H-Y antigen directs gonads to become testes..pdf)
7. Without testosterone, the reproductive tract develops into:
A. Male tract
B. Female tract
C. Ambiguous external anatomy
D. Neither tract
Answer: B
Explanation: Female is the developmental “default” without androgens..pdf)
8. The Wolffian ducts require which hormone to develop?
A. Estrogen
B. Testosterone
C. Progesterone
D. Prolactin
Answer: B
Explanation: Testosterone maintains and differentiates Wolffian ducts into male tract..pdf).pdf)
9. Mullerian ducts regress in males due to:
A. Testosterone
B. LH
C. Mullerian-Inhibiting Factor (MIF)
D. Estrogen
Answer: C
Explanation: Testes secrete MIF which degenerates Mullerian ducts..pdf)
10. External male genitalia require conversion of testosterone to:
A. Estradiol
B. DHEA
C. DHT
D. Cortisol
REPRODUCTIVE PHYSIOLOGY MCQ option solution
question with explanation |ACTUAL POSSIBLE 2026
Queen's University
MODULE 2 — REPRODUCTIVE PHYSIOLOGY
SECTION 2.1 — Introduction to Reproductive Physiology
1. The primary purpose of the reproductive system is:
A. Maintain homeostasis
B. Ensure species continuation
C. Control blood glucose
D. Produce ATP
Answer: B
Explanation: The reproductive system exists for species survival, not individual survival..pdf).pdf)
2. Gametes are described as:
A. Diploid cells
B. Haploid cells
C. Somatic cells
D. Embryonic stem cells
Answer: B
Explanation: Gametes contain half the chromosome number (haploid)..pdf).pdf)
3. Genetic sex is determined at:
A. Birth
,B. Conception
C. Puberty
D. Week 7 of development
Answer: B
Explanation: Genetic sex depends on the sperm’s chromosome (X or Y) at fertilization..pdf)
4. Gonadal sex depends on:
A. Maternal hormones
B. Presence of a Y chromosome
C. Thyroid hormone levels
D. Fetal movement
Answer: B
Explanation: Presence of SRY on Y chromosome causes testes development..pdf)
5. Phenotypic sex depends on:
A. Gamete size
B. Gonadal hormones
C. Number of mitochondria
D. Maternal antibodies
, Answer: B
Explanation: Androgens from testes determine phenotypic male characteristics..pdf)
6. SRY gene triggers production of:
A. Estrogen
B. H-Y antigen
C. Progesterone
D. Oxytocin
Answer: B
Explanation: H-Y antigen directs gonads to become testes..pdf)
7. Without testosterone, the reproductive tract develops into:
A. Male tract
B. Female tract
C. Ambiguous external anatomy
D. Neither tract
Answer: B
Explanation: Female is the developmental “default” without androgens..pdf)
8. The Wolffian ducts require which hormone to develop?
A. Estrogen
B. Testosterone
C. Progesterone
D. Prolactin
Answer: B
Explanation: Testosterone maintains and differentiates Wolffian ducts into male tract..pdf).pdf)
9. Mullerian ducts regress in males due to:
A. Testosterone
B. LH
C. Mullerian-Inhibiting Factor (MIF)
D. Estrogen
Answer: C
Explanation: Testes secrete MIF which degenerates Mullerian ducts..pdf)
10. External male genitalia require conversion of testosterone to:
A. Estradiol
B. DHEA
C. DHT
D. Cortisol
