10GQC-3Q Mutations

What causes mutations?

• Errors in DNA replication

• Exposure to mutagens

• Viral infections

• Heat exposure

Types of mutations?

• Baseed on chromosome number

• Based on chromosome structure

• Euploidy

• Radioactive

What is a mutagen?

• External factors/chemicals one may be exposed to

• Mutated strand of DNA

• Mutated phosphate group

• Mutated chemical bond in a strand of DNA

Which of the following are types of chromosomal mutations?

• Based on chromosome number

• Based on chromosome structure

• Based on chromosome size

• Based on chromosome color

What type of mutation is Klinefelter Syndrome (XXY)?

• Based on chromosome number

• Based on chromosome structure

What is an aneuploidy chromosomal mutation?

• A change in # of chromosomes

• A change in the whole genome

• An insertion of a new nucleotide into a DNA sequence

• A change in the codon sequence of an mRNA strand

What mutation is being described: female with a missing or partial X chromosome (XO)

• Turner Syndrome

• Trisomy 21

• ADHD

• None of the above

What is it called when a mutated codon codes for the same amino acid?

• Frameshift mutation

• Intersection mutation

• Silent mutation

• Missense mutation

What is it called when a mutated codon codes for a different amino acid?

• Frameshift mutation

• Missense mutation

• Deletion mutation

• Nonsense mutation

Which type of nucleotide sequence mutation exhibits the domino effect?

• Frameshift mutation

• Deletion mutation

• Insertion mutation

• Point mutation