Exploring Types of Mutations and Their Effects

What is the central dogma of molecular biology?

• Protein is transcribed to RNA, which is then translated to DNA.

• RNA is transcribed to DNA, which is then translated to protein.

• DNA is transcribed to RNA, which is then translated to protein.

• DNA is translated to RNA, which is then transcribed to protein.

What is a point mutation?

• A mutation where a DNA base is deleted.

• A mutation where a DNA base is added.

• A mutation where one DNA base is replaced with another.

• A mutation where a DNA base is duplicated.

In the given example, what does a point mutation change in the protein sequence?

• It deletes an amino acid.

• It adds an extra amino acid.

• It changes one amino acid.

• It changes the entire protein sequence.

What is a frameshift mutation?

• A mutation where a DNA base is duplicated.

• A mutation where a DNA base is added or deleted, changing the reading frame.

• A mutation where a DNA base is replaced with another.

• A mutation where a DNA base is inverted.

How do frameshift mutations typically affect the protein?

• They only affect the start codon.

• They change the reading frame, affecting multiple amino acids.

• They change one amino acid in the protein.

• They usually have no effect on the protein.

What is a nonsense mutation?

• A mutation that adds an extra amino acid.

• A mutation that deletes an amino acid.

• A mutation that changes an amino acid to a stop codon.

• A mutation that changes an amino acid to another amino acid.

What is a missense mutation?

• A mutation that changes an amino acid to another amino acid.

• A mutation that changes an amino acid to a stop codon.

• A mutation that adds an extra amino acid.

• A mutation that deletes an amino acid.

What is a silent mutation?

• A mutation that changes an amino acid to a stop codon.

• A mutation that changes an amino acid to another amino acid.

• A mutation that does not affect the protein.

• A mutation that deletes an amino acid.

What type of mutation is involved in sickle-cell disease?

• Frameshift mutation

• Nonsense mutation

• Point mutation

• Silent mutation

What type of missense mutation is seen in sickle-cell disease?

• Conservative mutation

• Silent mutation

• Non-conservative mutation

• Nonsense mutation