BIOS 300 Extra Credit Review Quiz

Which of these is considered a true bond?

• Hydrogen bonds

• Ionic interactions

• Hydrophobic forces

• Van der Waals interactions

What amino acid helps affix membrane proteins within the cellular membrane?

• Tryptophan

• Lysine

• Glutamic Acid

• Glycine

Which chromatography would be the best way to purify a protein with exterior lysines?

• Gel filtration

• Hydrophobic interaction

• Anion exchange

• Cation exchange

Which of these is NOT an advantage of NMR spectroscopy?

• High accuracy

• Visualizes dynamic nature of proteins

• Effective for larger proteins

• Useful for understanding intrinsic disorder

Which experiment provided the first substantial evidence that DNA was the genetic material?

• Griffith

• Avery-Macleod-McCarty

• Meselon-Stahl

• Hershey-Chase

Which of these histone modifications reduces gene expression?

• Methylation

• Phosphorylation

• Acetylation

• Splicing

What is NOT a characteristic of SMC proteins?

• Provide scaffolding for the chromosome

• Hinged

• Hold 30 nm solenoid structures

• Form octagonal structures

Which of the following correctly matches a replication protein to a function?

• Helicase - unwinding of supercoil

• DNA polymerase III - lagging strand synthesis

• DNA polymerase I - removing RNA primers

• DNA clamp - hold ssDNA

Which of these is a function of telomerase?

• Extension of the 5' end

• Using DNA as a template

• Degradation of DNA

• Extra telomere elongation in stem cells

Which of the following forms of DNA repair is the 'dirtiest'?

• Error tolerant DNA polymerases

• Base excision

• Strand-directed mismatch repair

• Nucleotide excision repair