BIOCHEM MURPHY FINAL STUDY GUIDE 2026 EXAM
QUESTIONS AND ALL CORRECT ANSWERS
Which of the following describes the flow of genetic information as stated in the central dogma
of molecular biology? - ANSWER-DNA to RNA to Protein
Which of the following statements about insulin is not true? - ANSWER-Insulin inhibits
gluconeogenesis via an allosteric effect on PEP carboxykinase
Which of the following statements about hormones are correct? - ANSWER-1, 2, and 4 are
correct
Which of these is the second of the three stages of cell signaling? - ANSWER-transduction
Under which conditions are the lac structural genes expressed most efficiently? - ANSWER-No
glucose, high lactose
Which of the following best describes the role of EF-Tu (elongation factor Tu) in elongation of
protein synthesis? - ANSWER-It is involved in the correct binding of amino acyl tRNA to the A
site of the ribosome
The DNA "backbone" is composed of - ANSWER-A phosphodiester bond between 3' and 5'
hydroxyl groups of adjacent deoxyribose residues
Posttranslational modifications include all except - ANSWER-disulfide bond formation
The process of translation is extremely accurate (1 mistake in 10,000) due to - ANSWER-
answers B and C are correct (B: codon/anti-codon interactions. C: amino-acyl tRNA synthetases)
How many hydrogen bonds exist between this DNA strand and its complimentary strand?
TCCAAG - ANSWER-15
Eukaryotic DNA is packaged very differently than bacterial DNA. Which of the following
statements is true of eukaryotic DNA packaging? - ANSWER-It is packaged with special
proteins known as histones.
Which of the following statements about the ubiquitination of proteins are true? - ANSWER-
Only statements 1, 2, and 4 are correct.
A researcher will do which of the following to elucidate how a known receptor mediated, polar
protein molecule signals through the cell ultimately changing transcription of genes. Pick the
best choice. - ANSWER-Run a transcriptome array to determine all the changes in every gene
level in treated vs untreated cells.
QUESTIONS AND ALL CORRECT ANSWERS
Which of the following describes the flow of genetic information as stated in the central dogma
of molecular biology? - ANSWER-DNA to RNA to Protein
Which of the following statements about insulin is not true? - ANSWER-Insulin inhibits
gluconeogenesis via an allosteric effect on PEP carboxykinase
Which of the following statements about hormones are correct? - ANSWER-1, 2, and 4 are
correct
Which of these is the second of the three stages of cell signaling? - ANSWER-transduction
Under which conditions are the lac structural genes expressed most efficiently? - ANSWER-No
glucose, high lactose
Which of the following best describes the role of EF-Tu (elongation factor Tu) in elongation of
protein synthesis? - ANSWER-It is involved in the correct binding of amino acyl tRNA to the A
site of the ribosome
The DNA "backbone" is composed of - ANSWER-A phosphodiester bond between 3' and 5'
hydroxyl groups of adjacent deoxyribose residues
Posttranslational modifications include all except - ANSWER-disulfide bond formation
The process of translation is extremely accurate (1 mistake in 10,000) due to - ANSWER-
answers B and C are correct (B: codon/anti-codon interactions. C: amino-acyl tRNA synthetases)
How many hydrogen bonds exist between this DNA strand and its complimentary strand?
TCCAAG - ANSWER-15
Eukaryotic DNA is packaged very differently than bacterial DNA. Which of the following
statements is true of eukaryotic DNA packaging? - ANSWER-It is packaged with special
proteins known as histones.
Which of the following statements about the ubiquitination of proteins are true? - ANSWER-
Only statements 1, 2, and 4 are correct.
A researcher will do which of the following to elucidate how a known receptor mediated, polar
protein molecule signals through the cell ultimately changing transcription of genes. Pick the
best choice. - ANSWER-Run a transcriptome array to determine all the changes in every gene
level in treated vs untreated cells.
