Mutations and Genetic Disorders

What is a mutation?

• A change in genetic material

• A change in physical appearance

• A change in behavior

• A change in environment

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NGSS.HS-LS3-2

NGSS.HS-LS4-2

Which of the following can have mutations?

• Animals

• Plants

• Bacteria

• All of the above

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NGSS.HS-LS3-2

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What can make mutations more likely to occur?

• Excessive radiation

• Certain types of chemicals

• An event that causes a problem with DNA replication

• All of the above

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NGSS.HS-LS3-2

What is a frameshift mutation?

• A mutation that changes the reading frame of codons

• A mutation that changes the amino acid sequence

• A mutation that adds or removes a base

• A mutation that duplicates genes

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NGSS.HS-LS3-2

Which of the following is an example of a chromosomal mutation?

• Duplication

• Deletion

• Inversion

• All of the above

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NGSS.HS-LS3-2

What is nondisjunction?

• When chromosomes don't separate completely during meiosis

• When chromosomes break off and attach to another chromosome

• When extra copies of genes are generated

• When a base is added or removed in DNA

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NGSS.HS-LS3-2

What is sickle cell anemia?

• A disorder that affects the shape of red blood cells

• A disorder that affects the ability to carry oxygen

• A disorder caused by a mutation in the gene that codes for hemoglobin

• All of the above

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NGSS.HS-LS3-2

What is the role of genetic counselors?

• To help families affected by genetic disorders

• To study mutations and genetic disorders

• To develop treatments for genetic disorders

• To prevent mutations from occurring

What happens if an individual inherits one copy of the mutated gene for sickle cell anemia?

• They have the disease

• They are a carrier but don't have the disease

• They are immune to malaria

• They have severe symptoms of malaria

Tags

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What is the main message of the video?

• Mutations are random and can have different effects

• Mutations can be controlled by organisms

• Mutations only occur in humans

• Mutations are always harmful

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2