Unit 5B DNA Replication and Protein Synthesis Review

Unit 5B Review

DNA Replication and Protein Synthesis

Review for Unit 5B

• DNA and RNA

• Semi-conservative DNA Replication

• Gene Expression - Transcription and Translation

• Mutations

Multiple Choice

Which of the following bases is NOT found in RNA?

• adenine

• thymine

• guanine

• uracil

Multiple Choice

The monomers of DNA and RNA are called _______

• amino acids

• carbohydrates

• nucleotides

• polypeptides

Multiple Choice

Using complementary base pairing rules, what would U pair with?

• T

• U

• A

• A and T

Multiple Choice

How does DNA replication help to conserve genetic information?

• By making an exact copy of the DNA molecule for the next generation

• by making an RNA copy of the DNA molecule

• by combining fragments of DNA into a new DNA molecule

Multiple Choice

Which of the following statements best describes the semiconservative model of DNA replication?

• all molecules with interspersed parental and new fragments

• all molecules with two new strands

• all molecules with one parental and one new strand

Multiple Choice

A DNA strand has the following bases: AAG CCA. What is the sequence of bases on the complementary strand of DNA?

• AAG CCA

• TTC GGT

• ACC GAA

• CCA TTC

Multiple Choice

What did the original DNA look like that produced a mRNA strand with the following sequence: AGU ACA?

• UCA UGU

• AGT ACA

• TCA TGT

• AGU ACA

Multiple Choice

Which of the following indicates that all organisms can be traced to a common ancestor?

• the genetic code is in triplets (groups of three)

• almost ALL living organisms use the same codons to make proteins

• some microorganisms use codons

• some organisms have different start and stop signals

Multiple Choice

What is the end product of transcription?

• mRNA

• DNA

• amino acids

• ribosomes

Multiple Choice

Which statement correctly describes the difference between replication and transcription?

• DNA replication results in a single stranded RNA molecule, while Transcription results in two copies of a double helix DNA

• DNA replication results in two copies of a double helix DNA, while Transcription results in a single stranded RNA molecule