AP Biology Unit 6 Review

If a mutation in the DNA does not lead to a change in the amino acid, what type of mutation is this?

• Silent

• Nonsense

• Missense

• Frameshift

A mutation in the DNA causes a change in the mRNA so that it now codes for a stop codon. What type of mutation is this?

• Silent

• Nonsense

• Missense

• Frameshift

Tags

NGSS.HS-LS3-2

A mutation occurs in which an extra nucleotide pair is inserted into the DNA. What type of mutation will this most likely cause?

• Silent

• Nonsense

• Missense

• Frameshift

Tags

NGSS.HS-LS3-2

Which of the following is true of nucleotide base pairing?

• Thymine forms 3 hydrogen bonds with Guanine

• Guanine forms 2 hydrogen bonds with Adenine

• Adenine forms 3 hydrogen bonds with Thymine

• Cytosine forms 3 hydrogen bonds with Guanine.

What makes up the backbone of DNA?

• Amino acids

• Nitrogen bases

• Sugar and phosphate

• Lipids

According to Chargaff's rule, if you have 23% Adenine in a DNA sample, how much Cytosine will you have in that sample?

• 54%

• 27%

• 23%

• 46%

Which of the following is true of the nitrogen bases?

• Purines have a single ring structure

• Pyrimidines have a double ring structure

• Purines have a double ring structure

• Cytosine and Thymine are purines

The anti-codon on a tRNA molecule is AGA. What will the amino acid be that it is bringing to the ribosome?

• Serine

• Tyrosine

• Phenyalanine

• Valine

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

What is true of gene regulation by chromatin modification in Eukaryotes?

• Acetylation of chromatin causes that section of DNA to be transcribed

• Methylation of Chromatin causes it to loosen up

• Acetylation of chromatin causes it to coil more tightly.

• Methylation of chromatin causes the DNA in that region to be transcribed

Tags

NGSS.HS-LS3-2

Which type of RNA carries genetic information from the nucleus to the cytoplasm?

• mRNA

• rRNA

• tRNA

• siRNA