repro 1 Flashcards
what are the 3 structures in female and male sex organs
gonads
internal genitalia
external genitalia
what are gonads
gamete produing organs (testes/ovaries)
how many pairs of chromosomes do we have
23
whats the specificity of our chromosomes
22 pairs autosomes
1 pair sex chromosomes
how many chromosomes do gametes contain
23 single chromosomes (haploid)
which chromosome is larger
X is way larger with more genes
what kind of disorders more commonly affect males
X-linked recessive genetic disorders
what are the X linked recessive genetic disorders (3)
muscular dystrophy
color blindness
hemophilia
what explains calico cats
X chromosome inactivation
what is non disjunction separation
improper segregation of genetic information
what are normal gametes
normal monosomic gametes
whats a disomic gamete
gamete with 2 chromosomes in it
whats a nullisomic gamete
gamete with no chromosome in it
if there is a “Y” at all, then you are _____________
genetically male
what is XXY
klinefelters
what is klinefelters described as
feminized male
infertile
what could cause XXY (fertilization)
normal gamete fertilizing a disomic gamete
what is X
turner syndrome
what is turner syndrome
short woman
infertile
webbing of neck
what chromosome is considered non viable for survival
Y
what are the 2 abnormal chromosome arrangements where people live normally and no signs of it shows
XXX
XYY
up to ___ week is embryo
8 weeks
after 9 weeks a growing baby is a _____
fetus
