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24 Cards in this Set
- Front
- Back
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what does it represent?
what is meiosis? what is another term for it? what are the two cycles? |
refers to the male and female duality of biology
gamete production fertilization diploid/ haploid cycle |
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gender-
what is it? nature? what type of culture? foundation for what? |
individual's identity conception as being male or female
nature-genetics nurture culture foundation for sexuality |
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primary sexual characteristics-
what is directly related to reproduction? what does it generally serve? |
sex diff. directly related to reproduction
generally serving no direct purposes in courtship |
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key females reprod organs-
5 main organs? describe. |
ovary (gonad)
-ova (follicle) prod hormone(estradiol)secretion fallopian tubes -connecting ovaries to uterus (tubal ligation) uterus -womb (hysterectomy) cervix -connecting the uterus to the vagina clitoris -homologous to the penis |
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key male reproductive organs-
name 6. describe. |
testes (gonad)
-sperm prod. -hormone(testosterone) secretion ductus(vas)defens -func. in ejaculation corpus cavernosum -penile erection epididymis -sperm storage prostate gland -secrete sem fluid seminal vesicle -secrete seminal fluid |
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embryonic sexual development-
six wks? what is absent? where? occurs? what is present? where? occurs? |
wolffian duct
-male internal sexual organs mullerian duct -female internal sex organs testosterone absence-female -wolffian duct degenerates -gonads-ovaries testosterone presence-male -mullerian duct degenerates -gonads->testes |
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external sexual organ development-
three steps? testosterone absence? presence? |
cloaca
urogenital groove external genitalia testosterone absence: glans clitoris vagina testosterone presence: glans penis scrotum |
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intersexuality-
two concepts? |
ambiguous external sexual organs
congenital adrenal hyperplasia (CAH) -excessive prod of testosterone -during fetal development -masculination of a femal fetus |
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sex determination gene-
what gene? located? what kind of gene/protein? where initiated? what kind of production? |
SRY(Sex determining region Y) gene
located on Y chromosome regulatory gene regulatory protein initiated male sexual develop. testosterone production |
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abnormal sexual development-
what kind of male? female? what? where? what is it called? what occurs? |
XX male-w/SRY gene
XY female mutation in the SRY gene complete androgen insensitive syndrome (CAIS) mutation in the testosterone receptor gene |
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explaining CAIS-
what gender? what prod what? explain the situation. |
XY female
SRY prod testes externally female internally male |
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Sex hormones-
what are the three types? what is a steroid? name the types of steroids. what is testosterone? |
steroid
estrogen testosterone steroid=lipid(fat) cholesterol corticosteroids anabolic steroids sex steroids androgen |
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secondary sexual characteristics-
4 qualities? |
not directly involved in reprod.
sexual attractiveness courtship advantage greater reprod. success |
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testosterone?
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testosterone:
ch body shape delays epiphysis closure promotes body/facial hair incr muscle mass sq lower jaw incr libido |
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estradoil?
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brst development
incr hip to waist ration decr body hair fine skin texture round jaw/lower |
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XY system-
female? male? when discovered? most what? |
XX=female
XY=male discovered in 1905 most mammals |
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turner syndrome-
describe. |
45, XO
Undeveloped ovaries Sterile |
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Klinefelter's syndrome-
describe. |
47
XXY Sterile Undeveloped testes |
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ZW sys.-
describe. |
Birds
some insects ZZ male ZW female |
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XO system-
describe. |
grasshoppers
insects XX female XO males |
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Haplodiploid Sys.-
describe. |
bees
ants wasps diploid(2n)-female haploid(n)-male |
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Temperature Sys.-
describe. |
Croc
most reptiles egg incubation temp -30 degrees C all female -32 degrees C all male -31 degrees C 50% fem./male |
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Protandry sequential Hermaphrodites-
describe. example? |
begin life as male
dom breeding pair breeding male-brding female largest male-brding male clown fish |
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Protogyny Sequential Hermaphrodites-
define. exs? |
begin life as females
one dom male female succeeds the dom male wrasses |
