T.U.Y.M.Q-"Mutations"

How can a mutation in the DNA sequence result in NO change to the protein that is made?

• There are multiple codons that can code for the same amino acid and result in the same protein

• There is always a change in the protein when a mutation occurs

• Only the mRNA is used in protein synthesis so a mutation in the DNA would have no effect on the protein

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

What determines the code, or information, of a DNA molecule?

• the shape (structure) of the nitrogen bases
• the order (sequence) of the nitrogen bases
• the color of the nitrogen bases
• the frequency (number) of nitrogen bases

Tags

NGSS.HS-LS3-1

Which best describes the information contained in genes? 

• instructions for assembling pyrimidines
• instructions for assembling purines
• instructions for assembling proteins
• instructions for assembling plasmids

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Which part of the DNA molecule determines an organism's traits? 

• hydrogen bond
• phospholipid group
• sugar-phosphate backbone
• complementary base pairing

Tags

NGSS.HS-LS3-1

Which best describes the role of mRNA in protein synthesis? 

• mRNA brings amino acids to the ribosome where they are connected to construct a protein.
• mRNA forms the peptide bonds connecting amino acids together to construct a protein 
• mRNA decodes the sequence of tRNA into the amino acids used to construct a protein
• mRNA brings the code of DNA to the ribosome where it is used to construct a protein

Use your codon chart to match the mRNA ACU to the correct amino acid.

• Thr

• Ala

• Val

• Gly

What mutation has occurred here?

T-G-A-C-C-A

T-G-A-G-C-A

• Substitution

• Deletion

• Insertion

• Frameshift

Tags

NGSS.HS-LS3-2

Which of the following would result in a frameshift mutation?

• Insertions only

• Substitution only

• Deletion only

• Insertions and Deletions

Tags

NGSS.HS-LS3-2

Why are insertion and deletion (frameshift) mutations so harmful?

• They change all of the codons from the mutation on down the line, which changes the amino acid sequence

• They insert things that an organism doesn't need.

• They often delete things that organisms need.

• Insertion and deletions are not any more harmful than substitution mutations.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

A mutation in which only one nucleotide is altered is called a:

• Frameshift Mutation

• Deletion Mutation

• Point Mutation

• Insertion Mutation

Tags

NGSS.HS-LS3-2