Genetics (2)

Question 1

Where is genetic information contained?

Answer 1

Genetic information is contained in DNA in the nucleus of the cell

Question 2

How is the human body organized genetically from large to small?

Answer 2

Cells, Chromosomes, DNA

Question 3

What can provide information on human genetics?

Answer 3

Pedigree, breeding results from animals/plants(Punnet square), human DNA,

Question 4

What is the 50/50 Rule?

Answer 4

Each parent contributes ½ of the chromosomes to the offspring. Recessive traits HAS to be passed on by BOTH parents

Question 5

How can DNA fingerprinting be used?

Answer 5

ID a person at a crime scene, diagnose genetic disease, ID a person (alive or dead), determine if related to someone

Question 6

What does a pedigree look like with a recessive trait? A dominant trait?

Answer 6

Recessive trait (diabetes)- Usually Recessive trait “disappears” in F1 generation
Dominate trait (Marfan Syndrome, polydactamine)- trait shows in every generation unless recessive pairs up on both sides

Question 7

Know ABO and +/- blood typing
ABO blood typing is co-dominant
+/- is regular dominant/recessive

Answer 7

A and B are dominant
O is recessive
Rh+ is dominant
Rh- is recessive

Question 8

different blood types

Answer 8

Blood Type A–AA/AO
Blood Type B–BB/BO
Blood Type AB–AB
Blood Type O–OO

Question 9

Can someone be blood type O from Dad being Blood Type A and Mom being Blood Type B?

Answer 9

Yes–Both Mom and Dad carry recessive traits
Dad–AO
Mom–BO
Kid- OO

Question 10

Can a kid be Blood Type AB+ if Mom is Blood type AB- and Dad is blood type BO-?

Answer 10

Mom–AB-
Dad-BO-

NO–Even though it is possible to get a kid that is AB blood type, Mom and Dad are Rh- and can not make kid AB+

Question 11

Can someone be Rh- when both parents are Rh+?

Answer 11

YES–Both Mom and Dad carry recessive traits
Dad is +-
Mom is +-
Kid is –

Question 12

What is a pedigree?

Answer 12

the record of descent of an animal, showing it to be purebred.