Unit 6 DNA/RNA & Protein Synthesis

If there is 20% Thymine in a DNA molecule, what percent of the DNA molecule will be made up up Guanine?

• 20%

• 30%

• 40%

• 60%

What is the significance of the nitrogenous bases?

• The order of nitrogenous bases determines the order of amino acids in the proteins synthesized. 

• The number of adenines and cytosines determines the type of RNA that will be produced

• The amount of thymine and guanine in the DNA molecules determines the length of the genes.

• The type of hydrogen bonding between the nitrogenous bases determines which amino acid will be added

 Which sequence is the complementary DNA strand?

 3' TAACGCAT 5'

• 5' ATTGCGTA 3'

• 5' UAACGCAU 3'

• 5' TAACGCAT 3'

• 5' GCCTATCG 3'

What are the components of the molecule shown in the diagram?

• Sugar

  Phosphate Group

  Nitrogen Base

• Sugar

  Protein

  Amino Acid

• Protein

  Phosphate Group

  RNA

• Lipid

  Protein

  Carbohydrate

What would be the mRNA base code if a DNA strand read ATAGCGA?

• TATCGCT

• UAUCGCU

• AUACGCA

• ATAGCGA

What is the building block of DNA.

• carbohydrate

• fatty acid

• nucleotide

• amino acid

How does the simplest bacteria relate to the most complex plant?

• All organisms share common enzymes

• All organisms have a double helix DNA

• All organisms have a phosphate substructure.

• All organisms share common DNA bases.

Which process is identified by number 2 in the diagram?

• translation

• transcription

• replication

• transmutation

Each sequence of three nucleotides is called —

• codon

• anti-codon

• gene

• amino acid

What is the mRNA codon that is getting translated for the amino acid in section E?

• CUC

• GAG

• GLU

• AAA