Mutations Homework Check

Which of the following statements is NOT true regarding mutations?

• Mutations are always harmful.

• Mutations may be helpful.

• Mutations generate the raw material for natural selection.

• Mutations create variety in the gene pool.

Which of the following correctly describes what a mutation is?

• A change in the DNA code of an organism

• A change to a gene of an organism

• A change to the nucleotide sequence

• All of these answers are correct

In which types of cells must mutations occur in order for the mutation to be passed-on to future generations?

• Somatic cells

• Genes

• Gametes

• Alleles

What is the best way to describe how mutations relate to the concept of survival of the fittest? Choose the best answer from the choices below.

• Only those mutations that are helpful will be passed-on.

• Mutations that allow organisms to survive are more likely to be passed-on.

• Only those mutations that are harmful will be passed-on.

• Mutations do not relate to survival of the fittest.

There are several ways that a mutation may occur. Which of the following is NOT a way for a mutation to occur during the DNA replication (copying) process?

• Sections of genes can be removed.

• Sections of genes may be added.

• All of the organism's genes are removed.

• An entire gene may be reversed.