Chapter 12 Flashcards
Name the 4 blood types
A, b, ab, o
What determines blood types
The presence or absence of antigens
What are the blood genotypes for the following individuals, homozygous dominat for blood type b, heterozygous blood type a, blood type ab, blood type o
IBIB
Iai
IaIb
ii
What is the universal donor
O-
What is the universal recipient
AB+
Who discovered blood types, what year
Karl Landsteiner, 1900
Is the Rh factor Sex linked Dominant Codominant Recessive
Dominant
If one of your parents has Huntingtons disease, what are the chances you would get it
50%
What chromosomes holds the genes for Huntingtom’s disease
4
What are the symptoms of Huntington’s disease
Mild forgetfulness, loss of muscle control, spasms, mental illness, death
Is the gene for Huntington’s
Dominant
Recessive
Codominant
Dominant
What chromosome holds the gene for Marfans Syndrome
15
What are the symptoms of Marfans syndrome
Long limbs, loose joints, deformed vertebrate, rupture of large arteries, sudden death
What famous syndrome has Marfans syndrome
Michael Phelps
What disease results in the body not being able to break down a particular amino acid? It leads to brain damage if not treated.
PKU
Who discovered sickle cell anemia, when?
Dr. James Herrick, 1904
What do the red blood cells look like if a person has sickle cell anemia? What is the genotype for a person with it, what is the genotype of a carrier?
Blood cells are sickle shaped (impair blood flow, clog and get stuck in capillaries),
HsHs
HAHS
What are the symptoms of cystic fibrosis
Shortened life expectancy, mucus clogs the lungs and pancreas leading to infections
What is an x linked trait
Alleles for a trait are found on X chromosome
List some x linked traits
Colorblindness, hemophilia
What % of males have colorblindness
8%
What is the most common type of colorblindness
Red/green
What is the symbol used for normal vision? What is the symbol for colorblindness?
XC
Xc
Why are more males affected with x linked traits then females
They only have 1 X chromosome, if it is affected they have the trait, females have 2 (they can have 1 chromosome with the trait and not have it , but be carriers)
