DNA Basics
What is DNA’s main function in living organisms?
To store and transmit genetic information
What is a single-gene disorder?
A disease caused by a mutation in one gene
What does genetic testing examine in a person’s DNA?
Abnormalities in genes or chromosomes
What was the main goal of the Human Genome Project?
To sequence all human genes and understand their functions
Where does Mr. V go to school?
Trine University
Where in the cell is DNA found in eukaryotes?
In the nucleus
Name one example of a single-gene disorder.
Cystic fibrosis or sickle cell disease
What type of test checks embryos for genetic problems before birth?
Prenatal Testing
How many chromosomes do humans typically have?
46
What sport does Mr. V play for his school?
Lacrosse
What are the “rungs” of the DNA ladder made of?
Pairs of nitrogen bases
What is a multifactorial disorder?
A disorder caused by both genes and environmental factors
What kind of testing is performed right after a baby is born?
Newborn screening
What does it mean if someone is a “carrier”?
They have one normal allele and one recessive allele for a genetic trait
What is Ms. Ervin's favorite animal?
Frogs
Which base pairs with adenine (A) in DNA?
Thymine (T)
What kind of disorder results from missing or extra chromosomes?
A chromosomal disorder
What type of screening checks if someone carries a recessive disease allele?
Carrier screening
What does a karyotype show?
The number and structure of chromosomes
How many Turkey's have been pardoned by the Presidents?
30
Describe how DNA, genes, and chromosomes are related.
Genes are segments of DNA, and DNA is tightly coiled into chromosomes that carry genetic information
What is unique about mitochondrial disorders?
They are caused by mutations in mitochondrial DNA, which is inherited only from the mother
Explain one ethical concern about genetic testing.
It may lead to discrimination, difficult reproductive decisions, or moral dilemmas.
What is the main job of a genetic counselor?
To help families understand genetic risks and testing options
Snoopy get in a fight with this character in Charlie Brown's Thanksgiving
Fold Chair