Week 15 Extra Credit: Mutations

Front

What is a silent mutation?

Back

A type of substitution mutation where no amino acids change in the protein sequence.

Front

What are frameshift mutations?

Back

Mutations caused by insertions or deletions that shift the reading frame of the genetic code.

Front

What is the result of a deletion mutation?

Back

A mutation where one or more nucleotides are removed from the DNA sequence, potentially leading to a frameshift.

Front

How many chromosomes does a person with trisomy 18 have?

Back

47 chromosomes.

Front

What is a substitution mutation?

Back

A mutation where one nucleotide is replaced by another, which may or may not change the amino acid.

Front

What is an insertion mutation?

Back

A mutation where one or more nucleotides are added to the DNA sequence.

Front

What is a deletion mutation?

Back

A mutation where one or more nucleotides are removed from the DNA sequence.

Front

What is a nonsense mutation?

Back

A mutation that creates a premature stop codon in the protein sequence.

Front

What is a missense mutation?

Back

A mutation that results in a different amino acid being incorporated into the protein.

Front

What is polyploidy?

Back

A condition in which an organism has extra sets of chromosomes, often seen in plants.