Chapter 12 Vocab

\# 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.