Biology Ch. 11 Review

Also known as heterozygous because this person doesn't have the recessive genetic disorder, but can pass it on.

• Homozygous dominant

• Carrier

• Hybrid

• Homozygous recessive

This is when one allele hides the effects of another allele. (lab coat colors)

• Codominance

• Incomplete dominance

• Epistasis

• Multiple alleles

This is when the heterozygous is a blend of the dominant and recessive alleles

(red and white make pink)

• Incomplete dominance

• Codominance

• Epistasis

• Polygenic traits

These are the 22 pairs of non-sex determining chromosomes.

• Karyotype

• Sex chromosomes

• Gametes

• Autosomes

This is the genetic disorder characterized by no pigment (color) in the skin, hair or the eyes.

• Albinism

• Huntington's disease

• Tay-Sachs disease

• Cystic fibrosis

This genetic disorder is characterized by a decline in mental and neurological function because of a gene that focuses on neurological function being defective.

• Tay-Sachs disease

• Albinism

• Huntington's disease

• Achondroplasia

This disease is characterized by a build up of fat in the brain which can lead to mental disabilities and wear down the nervous system of a child.

• Albinism

• Huntington's disease

• Cystic fibrosis

• Tay-Sachs

This disease is characterized by abnormal bone growth, such as having short arms and legs, but a large head.

• Albinism

• Huntington's disease

• Achondroplasia

• Cystic fibrosis

This disease is characterized by an excess mucus production which can lead to digestive and respiratory failure.

• Albinism

• Tay-Sachs disease

• Achondroplasia

• Cystic fibrosis

This genetic disorder is characterized by a third copy of chromosome 21. It is usually associated with physical growth delays, mild to moderate intellectual disability, and characteristic facial features.

• Down's syndrome

• Albinism

• Achondroplasia

• Cystic fibrosis