Studied by 2 people
# of chromosomes in a normal human male
46XY
Example of Dominant Genetic Disorder
Huntington’s Disease, Achondroplasia Dwarfism
Example of Sex Linked
Hemophilia, Color Blindness
Karyotype ex. of Klinefelter’s Syndromes
47 XXY
Karyotype ex. of Turner’s Syndrome
45 XO
Klinefelter’s Syndrome
Occurs from non disjunction, with extra set chromosomes.
OO
Can only receive O blood
Turner’s Syndrome
Occurs from non disjunction, only 45 chromosomes.
Universal blood donor
OO
Universal blood recipient
AB
Autosomes
The first 22 pairs of human chromosomes
Expressed Female Trait
fully shaded in circle
Female Carrier Symbol
half shaded, circle
Female Chromosomes
XX
Female Symbol
Circle
Karyotype
Picture of Chromosomes arranged in homologous pairs
Male Carrier Symbol
half shaded square
Male Chromosomes
XY
Male Symbol
Square
Non-Disjunction
Homologous chromosomes fail to separate during meiosis
Pedigree
Chart that shows the relationship and traits within a family over several generations.
Polygenic
Trait controlled by many genes.
Sex Chromosomes
The 23rd pair of human chromosomes
Sex linked
A gene that is found on the sex chromosomes
# of chromosomes in a normal human female.
46 XX
Expressed Male Trait
Fully shaded in square
Can only receive A or O blood
A (AO or AA)
Can receive only B or O blood
B (BB or BO)
Dominant Genetic Disorder
A disorder that will show up 50% of the time in each generation.
