genes

What is an example of a mutation that changes the shape of red blood cells?

• Keto urea

• Sickle-cell anemia

• Cystic fibrosis

• Gene insertion

What does TEKS B6 II focus on in the context of mutations?

• Discussing mutation impacts on health

• Evaluating DNA replication errors

• Identifying chromosomal mutations

• Illustrating changes in DNA

Which type of mutation involves the addition of one or more nucleotides?

• Deletion

• Insertion

• Substitution

• Duplication

What is a frameshift mutation?

• The removal of nucleotides altering the reading frame

• A mutation that occurs in non-coding regions

• A change in a single nucleotide

• A mutation that does not affect the protein

What is the result of a deletion mutation in DNA?

• Increase in genetic variation

• Production of a beneficial protein

• Alteration in the DNA reading frame

• No change in amino acids

Which mutation is characterized by the substitution of a single nucleotide?

• Insertion mutation

• Beneficial mutation

• Point mutation

• Deletion mutation

What effect can mutations have on natural selection?

• No effect

• Decrease survival

• Increase survival

• Always harmful

Which mutation can lead to cystic fibrosis?

• Substitution mutation

• Silent mutation

• Frameshift mutation

• Point mutation

What type of mutation is often neutral and does not affect the organism?

• Frameshift mutation

• Silent mutation

• Beneficial mutation

• Deletion mutation

Which of the following mutations does not alter the protein produced?

• Silent mutation

• Frameshift mutation

• Insertion mutation

• Point mutation