Quiz on Sex Differentiation and Development

Which of the following regulates sex development?

• Only chromosomes

• Only gonads

• Chromosomes, gonads, hormones, and environmental influences

• Only hormones

Which hormone is functional in all bodies regardless of sex assignment?

• Estrogen

• Testosterone

• Progesterone

• All of the above

What is the typical age range for the onset of puberty?

• 8–9 years

• 12–13 years

• 15–16 years

• 5–6 years

Which of the following is NOT a secondary sex characteristic?

• Voice changes

• Breast development

• Body hair

• Bone growth

What is the purpose of puberty blockers for transgender adolescents?

• To pause unwanted physical changes

• To reverse puberty

• To enhance physical changes

• To accelerate puberty

What does epigenetics influence without changing?

• Gene expression

• DNA sequence

• Hormone levels

• Chromosome structure

Which phase of the menstrual cycle involves the release of an egg?

• Menopause

• Follicular phase

• Ovulation

• Luteal phase

What is the estimated prevalence of intersex traits?

• 1 in 100

• 1 in 1,000

• 1 in 10,000

• 1 in 10

Which structure is responsible for sperm production in males?

• Bulbourethral glands

• Seminal vesicles

• Prostate

• Testes

What is one theory about the development of gender dysphoria?

• Gender dysphoria is unrelated to fetal development

• Gender dysphoria is caused by environmental factors only

• Brain and genital differentiation occur at different points in fetal development

• Brain and genital differentiation occur simultaneously