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PSYC 220 Exam 3 Questions and
Answers (100% Correct Answers)
Already Graded A+
sry gene
Ans: causes the gonads to differentiate into testes
MIH
Ans: causes mullerian ducts to degenerate
© 2026 Assignment
androgens
Ans: male hormones, cause wolffian ducts to turn into male internal sex
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organs
Expert
estrogens
Ans: sex hormones, such as estradiol, secreted in greater amounts by
females than by males and contributing to female sex characteristics.
organizing effects
Ans: long-lasting effects of a hormone that are present during a sensitive
period early in development
activating effects
Ans: temporary effect of a hormone, which occurs at any time in life
while the hormone is present
Turner's Syndrome (Monosomy X)
Ans: - only an X chromosome
- females (no Y)
- nonfunctional ovaries (infertile)
- short in stature
, 2
kleinfelter's syndrome
Ans: males with XXY sex chromosomes, typical male internal and external
organs, small penis, infertile, feminine secondary sex characteristics
Androgen Insensitivity Syndrome
Ans: chromosomal male insensitive to androgens, doesn't respond to
testosterone, internal organs trend female, testes dont drop so externally
female, most identify as female
Fetally Androgenized Females
Ans: A chromosomally normal (XX) female who, as a result of excessive
exposure to androgens during prenatal sex differentiation, develops
© 2026 Assignment
external genitalia resembling those of a male. still has internal female
organs and ovaries
Guru01 - Stuvia
DHT deficient males
Expert
Ans: A chromosomally normal (XY) male who develops external genitalia
resembling those of a female as a result of a genetic defect that prevents
the prenatal conversion of testosterone into dihydrotestosterone (DHT).
sex based differences in brain anatomy
Ans: female- smaller overall, more convolutions, less white matter,
stronger connection b/w hemispheres
male- larger, less convolutions, more white matter, stronger connections
within each hemisphere
Maternal Immunization Hypothesis
Ans: homosexuality more likely in men with older brothers, NLGN4Y
(male specific protein) is left in the mothers body and her body produces
antibodies to it, these antibodies are passed down to subsequent
children, but only affect males
prenatal stress
Ans: can lead to homosexuality, endorphins antagonize effects of
testosterone on hypothalamus. adrenal hormones like cortisol decrease
testosterone levels
classical conditioning
Ans: pair neutral stimulus w conditioned response
PSYC 220 Exam 3 Questions and
Answers (100% Correct Answers)
Already Graded A+
sry gene
Ans: causes the gonads to differentiate into testes
MIH
Ans: causes mullerian ducts to degenerate
© 2026 Assignment
androgens
Ans: male hormones, cause wolffian ducts to turn into male internal sex
Guru01 - Stuvia
organs
Expert
estrogens
Ans: sex hormones, such as estradiol, secreted in greater amounts by
females than by males and contributing to female sex characteristics.
organizing effects
Ans: long-lasting effects of a hormone that are present during a sensitive
period early in development
activating effects
Ans: temporary effect of a hormone, which occurs at any time in life
while the hormone is present
Turner's Syndrome (Monosomy X)
Ans: - only an X chromosome
- females (no Y)
- nonfunctional ovaries (infertile)
- short in stature
, 2
kleinfelter's syndrome
Ans: males with XXY sex chromosomes, typical male internal and external
organs, small penis, infertile, feminine secondary sex characteristics
Androgen Insensitivity Syndrome
Ans: chromosomal male insensitive to androgens, doesn't respond to
testosterone, internal organs trend female, testes dont drop so externally
female, most identify as female
Fetally Androgenized Females
Ans: A chromosomally normal (XX) female who, as a result of excessive
exposure to androgens during prenatal sex differentiation, develops
© 2026 Assignment
external genitalia resembling those of a male. still has internal female
organs and ovaries
Guru01 - Stuvia
DHT deficient males
Expert
Ans: A chromosomally normal (XY) male who develops external genitalia
resembling those of a female as a result of a genetic defect that prevents
the prenatal conversion of testosterone into dihydrotestosterone (DHT).
sex based differences in brain anatomy
Ans: female- smaller overall, more convolutions, less white matter,
stronger connection b/w hemispheres
male- larger, less convolutions, more white matter, stronger connections
within each hemisphere
Maternal Immunization Hypothesis
Ans: homosexuality more likely in men with older brothers, NLGN4Y
(male specific protein) is left in the mothers body and her body produces
antibodies to it, these antibodies are passed down to subsequent
children, but only affect males
prenatal stress
Ans: can lead to homosexuality, endorphins antagonize effects of
testosterone on hypothalamus. adrenal hormones like cortisol decrease
testosterone levels
classical conditioning
Ans: pair neutral stimulus w conditioned response
