Practice DNA & Protein Synthesis Quiz

A DNA sequence of CAG would be transcribed to mRNA as

• GTC

• CUG

• CTG

• GUC

mRNA is made in the

• ribosome

• mitochondria

• cytoplasm

• nucleus

The sides of the DNA molecule are composed of

• phosphates ONLY.

• adenine and guanine.

• deoxyribose sugar.

• both phosphates and deoxyribose

  sugar.

If the sequence of bases on one side of a DNA molecule is ATCG, the correct sequence of bases

on the other side is

• ATGC

• TAGC

• CGTA

• ACGT

The “steps” of the DNA molecules are composed of

• bases ONLY.

• both phosphates and bases.

• phosphates ONLY.

• both phosphates and deoxyribose

  sugar.

How many bases must a DNA sequence contain to code for a protein composed of 100 amino

acids?

• 33

• 100

• 200

• 300

The process by which the hereditary information from DNA is encoded into mRNA is called

• replication.

• transcription.

• synthesis.

• translation.

On a molecule of DNA, nitrogen bases are linked together by

• Hydrogen bonds
• Van der Waals forces
• Covalent bonds
• Ionic bonds

Each of the tRNA molecules attaches and brings this specific substance to the ribosome

• Amino Acid

• Nucleotide

• Protein

• Nitrogen Base

The amount of adenine equals the amount of thymine in

• DNA
• Protein
• RNA
• Lipid