Second half of Module 2 Flashcards
Autosomal Dominant
Doesn’t skip generations, male to male transmission, affected children have one affected parent
Autosomal Recessive
Skips generations, male to male transmission, affected children are born to unaffected parents
X-linked dominant
Doesn’t skip generations, no male to male transmission, more males will have it
X-linked Recessive
Skips generations, more females than males, no male to male transmission
Y-linked
All males, affected fathers give it to all their sons
Doesn’t skip generations?
Dominant
Skips generations?
Recessive
What your gene SAYS?
Genotype
What your gene IS; physical traits?
Phenotype (blonde hair, blue eyes)
3 DNA samples?
Mother’s blood, Ameocentisis, chorionic Villus Sampling
Pulls out amniotic fluid from mother, usually do it between 15-18 weeks?
Ameocentisis
Pulls of part of the placenta through the vagina at about 10-12 weeks?
Chorionic Villus Sampling
Genetic Testing?
Ameocentisis, Chorionic Villus Sampling, Prenatal Testing, Pre-implication, karyotyping
What is Turner’s disease?
chromosomal condition that affects development in females
When there is only 1 X-chromosome present and has abnormalities in the fetus?
Turner’s Disease
What disease was discovered by Dr. Henry Turner? What year?
Turner’s Disease in 1938
Not recognized as a chromosomal abnormality until 1960?
Turner’s Disease
Occurs 1 in 5000 births?
Turner’s Disease
Identified by Warren Tay, in what year?
1881
Cherry red spot on the eye?
Tay-Sach’s Disease
Tay-Each’s Disease affects what enzyme?
Beta-Hexosaminidase
Where is Beta-Hexosaminidase located?
In the lysosomes
What does Beta-Hexosaminidase break down?
GM2 Ganglioside
What inheritance is Tay-Sach’s Disease?
Autosomal Recessive
Tay-Each’s Disease is on what chromosome? What is it Loci?
Chromosome 15 on Loci 15q23
If a low or even absence of Beta-Hexosaminidase A what is the disease?
Beta-Hexosaminidase
Commonly found in people of ashkenazi Jewish Heritage, french-canadiana communities of Quebec, and the Cajun people of Louisiana
Tay-Sach’s Disease
Was discovered by Dr. Asbjorn Folling in what year?
PKU in 1934
How did PKU come about?
The doctor tested two children that were mentally deficient and had a weird urine smell
What did the children’s urine consist of?
Phenylpyrivuc Acid
Inherited metabolic disorder?
PKU
What metabolites does PKU produce?
Intellectual disability, delayed development, behavioral and emotional and social problems, poor bone strength, hyperactivity, small head
Build of amino acid called phenylalanine?
PKU
What plays a role in the amino acids that plays an effect on proteins that help make thymine which helps with brain improvement?
Phenylalanine
What inheritance is PKU?
Autosomal Recessive
PKU is located on what chromosome? What is it’s loci?
Chromosome 12 loci 12q22-124.1
Affects 1 in 10,000 or 1 in 20,000 depending on country and origin?
PKU
The medications Kuvan and LNAA is are for what disease?
PKU
Meat, fish, poultry, egg, cheese, milk, tired peas, and beans are suppose to be avoided by what disease?
PKU
What disease requires a strict diet?
PKU
George Huntington discovered what disease in what year?
Huntington’s Disease in 1972
Irritability, depression, small involuntary movements, poor coordination, trouble making decisions, jerking and twitching all over their body happens in adult-onset
Huntington’s Disease
Life expectancy after receiving symptoms of Huntington’s Disease?
15 to 20 years