BACE Exam Practice Test Question and Answer 2023

What is an example of a product easily found in nature? - Antibiotic In a biotechnology lab, what is tap water is best used for? - Washing glassware. What is the order of amino acids on a polypeptide chain encoded by? - mRNA How do DNA molecules vary from one species to another? - Number of genes and non-coding regions. What is agar? - Solid media on which bacteria grow. What part of an amino acid differs from one to the other? - R group How can colorless proteins be monitored during electrophoresis? - PAGE loading dye. Which of the following is an mRNA codon? a. ATA b. UAU c. Tyrosine d. All of the above - UAU What is the purpose for SDS during electrophoresis? - Denature the proteins and give them a negative charge. Which governmental agency regulates biopharmaceutical products for human use? - Food & Drug Administration (FDA) What are the most common molecules in cells? - Proteins. Glucose is a ____. - Monosaccharide. Where does translation occur in prokaryotes? - At the ribosomes. What is the process of making RNA from DNA? - Transcription. What is the process by which RNA is decoded and polypeptides are formed? - Translation. What is autonomously replicating small circles of DNA present in some bacteria called? - Plasmids What are modifications of DNA in an organism called? - Genetic engineering. Parkinson's, diabetes, and cystic fibrosis (CF) are examples of _____. - Genetic disorders. What is an organism that does not have nucleus or membrane bound organelle, so DNA is contained in cytoplasm? - Prokaryotes. What helps researchers measure the amount of protein present? - Concentration assays. What determines the amount and length of activity for a given enzyme or drug in a test organism? - Potency assay. What are the tests that show if a specific enzyme or drug is present and conducting the expected reaction called? - Activity assay. What is the highly specific test to determine protein concentration based on a particular antigen-antibody interaction? - ELISA