What are the nitrogen bases found in DNA?

• Adenine, Thymine, Cytosine, Guanine

• Adenine, Uracil, Cytosine, Guanine

• Adenine, Thymine, Cytosine, Uracil

Which nitrogen base is replaced in mRNA compared to DNA?

• Thymine is replaced by Uracil

• Adenine is replaced by Uracil

• Cytosine is replaced by Guanine

What is a deletion mutation?

• A mutation where a base is removed

• A mutation where a base is added

• A mutation where a base is substituted

Tags

NGSS.HS-LS3-2

What is an insertion mutation?

• A mutation where a base is added

• A mutation where a base is removed

• A mutation where a base is substituted

Tags

NGSS.HS-LS3-2

What is a substitution mutation?

• A mutation where one base is replaced by another

• A mutation where a base is added

• A mutation where a base is removed

Tags

NGSS.HS-LS3-2

Explain how mutations can affect the sequence of nitrogen bases in DNA.

Tags

NGSS.HS-LS3-2

How does the sequence of nitrogen bases in mRNA differ from DNA?

Fill in the blank: In mRNA, the nitrogen base ______ replaces thymine found in DNA.

Match the following types of mutations with their descriptions: 1. Deletion, 2. Insertion, 3. Substitution.

• 1. Removal of a base

• 2. Addition of a base

• 3. Replacement of one base with another

Why is it important to understand how mutations occur in DNA?

Tags

NGSS.HS-LS3-2