DNA and Protein Synthesis

A DNA molecule consists of the following nucleotides: T-A-G-T-C-T. What would be the complementary strand after transcription?

• T-A-G-T-C-T
• A-T-C-A-G-A
• A-A-G-A-C-A
• A-U-C-A-G-A

What is the difference between the DNA of a dog and the DNA of a fly?

• the type of sugar used
• the fly contains DNA in a nucleus
• the sequence of the nucleotides
• the strength of the hydrogen bonds

What best summarizes the role of DNA in the production of proteins?

• DNA moves to the cytoplasm to build proteins.
• DNA transports amino acids to the ribosome to make proteins.
• DNA contains the instructions used in making proteins.
• DNA breaks the hydrogen bonds between amino acids.

What is the purpose of the hydrogen bonds in a DNA molecule?

• To stabilize the molecule and allow it to never break apart.
• To stabilize the molecule and allow it to easily separate during replication.
• To form strong forces between phosphates and sugars.
• To determine the sequences of the nitrogen bases and phosphate groups.

If DNA replication occurs, what would be the complement to the following strand: T-C-G-A-A-T

• A-C-G-A-A-T
• A-G-C-T-T-A
• A-C-G-G-A-A
• A-C-G-U-U-T

___ are the building blocks of nucleic acids.

• amino acids
• fatty acids
• monosaccharides
• nucleotides

A section of DNA has these bases: TAG CAG TAC. Which mRNA sequence is produced from this DNA segment?

• ATC GTC ATG
• AUC GUC AUG
• AUG CUG AUC
• UTC GTC UTG

Which statement best explains the difference between translation and transcription?

• Translation only occurs in prokaryotes, while transcription occurs in all living organisms.
• Translation makes an RNA copy from DNA while transcription makes protein.
• Translation only occurs in eukaryotes while transcription only occurs in prokaryotes.
• Translation makes protein after transcription makes RNA from DNA.

DNA is to hydrogen bond as amino acid is to ___ bond.

• peptide
• polymer
• hydrogen
• weak

Which of the following words are paired correctly?

• protein - amino acid
• nucleic acid - amino acid
• protein - monosaccharides
• nucleic acid - monomer