Autosomal Dominant and Recessive

What is true about an autosomal dominant disorder?

• A way disorders can be passed down through heredity.

• You only need one abnormal gene from one parent to get the disorder.

• You need two abnormal genes from both parents to get the disorder.

• Depends on the type of chromosome affected.

If someone where to be a carrier of ablinism, what would this tell you about the disorder?

• It is an autosomal dominant disorder.

• It is an autosomal recessive disorder.

• It is a sex-linked dominant disorder.

• It is a sex-linked recessive disorder.

Defect in melanin production that results in little or no color in the skin, hair and eyes. These individuals sunburn VERY easily.

• Hemophilia

• Albinism

• Cystic fibrosis

• Colorblindness

• Phenylketonuria

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What does this figure represent?

• all family members expressing a trait
• a family with no carriers
• a family with some carriers
• a genetic map of a single individual

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which condition is inherited as an autosomal dominant?

• cystic fibrosis

• albinism

• Huntington's disease

• Tay-Sacs disease

only one affected gene is needed to acquire the disorder

• autosomal dominant

• autosomal recessive

• sex-linked

Tags

NGSS.HS-LS3-1

two copies of affected gene are needed to acquire the disorder

• autosomal dominant

• autosomal recessive

• sex-linked

Condition strikes in middle age. Mental deterioration and uncontrollable movements are common.

• Achondroplasia

• Color-blindness

• Cystic fibrosis

• Huntington's disease

• Phenylketonuria

A person who has one dominant and one recessive allele for a trait, but does not have the trait.

• Clone
• Carrier
• Diseased
• Karyotype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The passing of traits from parents to offspring is called . . .

• Heredity

• Genetics

• Trait

• Allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2