unit: 1 - mutations

Question 1

What is the definition of a mutation?

Answer 1

Mutation: A change in the DNA sequence of an organism’s genome. These changes can affect genes and ultimately the proteins they encode, potentially altering an organism’s traits.

Question 2

What are the types of mutations by scale?

Answer 2

Gene Mutations: Changes in a single gene.

Chromosomal Mutations: Changes in the structure or number of entire chromosomes.

Question 3

What are the types of mutations by cause?

Answer 3

Spontaneous Mutations: Arise naturally due to errors during DNA replication or repair.

Induced Mutations: Caused by external factors (mutagens like radiation, chemicals, or viruses).