Psych of Gender Test 2 Flashcards
Sex differences in Humans
Slide 1 physical comparison
The pathway to indifferent gonad to gender dimorphism
Phenotype differences between males and females of same species. (physical differences); both sexes have indifferent gonad is differentiated into testes or ovaries
significance of why chromosomes comes in pairs
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Sex Chromosomes
X and Y; Y gives only a few genes and controls maleness (SRY Gene); Y chromosomes synthesize protein called H-Y antigen which starts process of testis.
Wolfien Ducts
both sexes have;
Switch gene
SRY ; Y and Sox9
testis
produce testosterone and other androgen’s;
ovaries
estrogen and progesterone
Gonadal/Sex hormones
Ovaries and Testis
Androgen and Testosterone (dihy drotesterone)
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Estrogen and Progesterone
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Androgen: Estrogen ration
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MIS (mullarien inhibiting substance)
Testes only: poduced to keep mullarian ducts from forming
Hormones and differentiation: internal reproductive structures and genitalia
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sex of assignment
determined by physician and parent judgment unless there is a gender anomaly
Genotype and phenotype
Phenotype: anatomy; appearance of the body
Genotype: chromosome, genes (genetic description)
XY-genotype to Male phenotype
XX-genotype to female phenotype
Chromosomal Anomaly: Turners syndrome B XO characteristics
normal female genitalia but no ovaries and no normal puberty, need hormone injections;
X chromosomes and Ovaries; XX and Femaleness
XX is only neccessary for ovaries not for development of external genitalia.Ovaries required for normal puberty; 1 in 2000 births
Klinefelters Syndrome- XXY
1 in 500 births; most common in humans; delayed motor development; less than average testosterone production; normal male genitalia; taller than average; but low or absent fertility; vast majority normal adult lives
Conclusions about Y chromosomes; X chromosomes and Testes
Many X’s dilutes Y