Mutations can benefit humans because they can:

• Cause illness

• Make an organism more suited to live in its environment.

• Make organisms live shorter lives

• Cause organisms to grow extra limbs.

Where do mutations occur?

• DNA and RNA
• DNA 
• RNA
• mRNA and tRNA

When can a mutation be passed on to offspring?

• only when the mutation is present during or occurs during mitosis
• only when the mutation is present during or occurs during meiosis
• when the mutation occurs during mitosis or meiosis
• when the mutation occurs in somatic cells

DNA molecule segment is : TTACGCAAG

The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.

• Substitution

• Deletion

• Addition

DNA molecule segment is : TTACGCAAG

The mutated DNA segment is TTACGCAAC. This is an example of ___ mutation.

• Substitution

• Deletion

• Addition

Deletion

• A

• B

• C

Substitution

• A

• B

• C

Addition

• A

• B

• C

What are the three possible consequences to changes in DNA? [check all that applies]

• Improved trait

• removal of trait

• No change (neutral)

• Harmful trait

What is a GMO?

• An organism that has had its DNA modified by humans

• An organism missing a chromosome

• Epigenetics

• A genetically identical organism