Chapter 12 Quiz 2- Review Sheet
Give an example of a trait with multiple alleles.
Found in squirrels in Olney, Illinois
Give an example of a polygenic trait found in humans.
Excess mucus formed in lungs.
Causes red blood cells to be sickle shaped.
Cannot have phenylalanine in diet.
Lack pigment in skin, hair, and eyes.
Mostly found in people of European ancestry.
If a women with blood type AB and a man with a blood type of O were married, what blood
types could their children possibly have?
Dominant allele causes this disorder.
Nervous system breaks down by age 5.
Nervous & muscular systems break down, starting at age 38.
Found only in the nucleus of females (or males with Klinefelter’s syndome).
Should not drink Diet Coke.
Heterozygous resistant to malaria.
Inactive X chromosome.
Why do you know that calico cats are female?
Explain how the frequency of the sickle cell gene is affected by the presence of the Anopheles
mosquito (carries malaria).
Complete the data table
Phenotype
___
___
___
___
Genotype
___, ___
___, ___
___
___
Antibodies
_____
_____
_____
_____, _____
Antigens
_____
_____
____
_____
If the woman in the following picture is a carrier (XAXa) for anhidrotic ectodermal dysplasia,
identify 2 areas of her body where the different X chromosomes is inactivated.
Give an example of a trait with multiple alleles. Human blood types, human eye color
Found in squirrels in Olney, Illinois - albinism
Give an example of a polygenic trait found in humans. – height, skin color, intelligence
Excess mucus formed in lungs – cystic fibrosis
Causes red blood cells to be sickle shaped – sickle cell anemia
Cannot have phenylalanine in diet – PKU (phenylketonuria)
Lack pigment in skin, hair, and eyes - albinism
Mostly found in people of European ancestory - cystic fibrosis
If a women with blood type AB and a man with a blood type of O were married, what blood types could
their children possibly have? – B and A
Dominant allele causes this disorder – Huntington’s disease
Nervous system breaks down by age 5 – Tay Sachs
Nervous & muscular systems break down, starting at age 38 - Huntington’s disease
Found only in the nucleus of females (or males with Klinefelter’s syndome) – Barr body
Should not drink Diet Coke. - PKU
Heterozygous resistant to malaria – Sickle cell anemia
Inactive X chromosome – Barr Body
Why do you know that calico cats are female? – look up in your notes
Explain how the frequency of the sickle cell gene is affected by the presence of the Anopheles mosquito
(carries malaria). – look up in your notes
Complete the data table
Phenotype
___
___
___
___
Genotype
___, ___
___, ___
___
___
Antibodies
_____
_____
_____
_____, _____
Look in your notes
Antigens
_____
_____
____
_____
If the women in the following picture is a carrier (XAXa) for anhidrotic ectodermal dysplasia, identify 2
areas of her body where the different X chromosomes are is inactivated.
XR The recessive allele has been inactivated
Xr The dominant allele has been inactivated