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1. Which of the following correctly describes the flow of information in protein production?A) DNA ? RNA ? proteinB) protein ? DNA ? RNAC) protein ? RNA ? DNAD) RNA ? DNA ? protein2. One strand of DNA molecule has the base sequence ATAGGT. The complementary base sequence on the other strand of DNA will beA) UAUCCAB) TATCCAC) TGGATAD) ATAGGT3. The human influenza virus consists ofA) DNA onlyB) RNA onlyC) RNA plus a phospholipid membraneD) DNA plus a phospholipid membraneE) DNA plus RNA4. Which of the following molecules is directly responsible for the order in which amino acids are added to a growing polypeptide at the ribosome?A) mRNAB) tRNAC) rRNAD) DNA5. The genetic code AUG codes forA) valine & aspartic acidB) methionine & startC) isoleucine & tryptophanD) aspartic acid & stop6. During the replication of DNA moleculesA) the cell undergoes mitosisB) both strands of the DNA molecule serve as templatesC) a helix composed of 4 strands is madeD) only one strand of the molecule serves as a template7. Discovery of the structure of DNA was important to the science of biology because itA) described a role for nitrogen in biological moleculesB) helped explain life’s unique property of reproductionC) enabled James Watson and Francis Crick to become famousD) helped describe a mechanism for the formation of all biological molecules8. A mutagen such as ultraviolet (UV) radiation may causeA) a reduction in the number of tRNA moleculesB) problems with mitosisC) blockage of the ribosome binding sitesD) a change in the nucleotide sequence of DNA9. Which of the following is an “emerging virus” that has a direct impact on human health?A) avian fluB) hepatitisC) measlesD) influenza10. A wrongly folded form of protein in brain cells which can cause diseases such as chronic wasting disease in deer and elk is the result ofA) bacteriaB) virusesC) retrovirusesD) prions
A 20 µL diluted sample (1:15) of protein was added to 2 ml of Bradford reaction assay tube. The absorbance at 595 was 0.75 and according to a BSA standard curve corresponding to 0.025 mg protein on the x-axis. What is the protein concentration (mg..
Discuss various types of diagnostic procedure for HIV infection. I thought there was only one test and it is a blood test.
q1. choose two organelles and compare them relative to structure and function. describe what would be the specific
Review the feedback mechanisms that maintain homeostasis and what happens when these systems do not function appropriately. Give two specific examples for each.
Clarify how the procedure of meiosis assures that the chromosome number of a species remains the same from generation to generation.
how can You characterize a new enzyme's kinetics. No, the activity does not change with increasing enzyme concentration correctly. The enzyme may be only active in a dimer that forms a high concentration.
in this assignment you will prepare a 2-3 page paper in which you describe1. the location and normal physiology
q1. a series of enzymes catalyze the reaction x y z a product a binds to the enzyme that converts x to y at a position
The genes for vermillion (v) eyes, sable (s) body color, and forker (f) bristles are on the X-chromosome of Drosophile melanogaster. They map in the order of v, s, f, with 10 map units between v and s and 14 map units between s and f.
Define succession and differetiate between primary and secondary succession. Consider an area that has been disrupted in Ontario and discuss successional changes it has gone through to get back to the climax condition.
Discuss two of the non-covalent forces that stabilize tertiary structure in proteins that are affected when the pH is changed.
q1. cindy an overweight high school student is overheard telling her friend that she is going to research how she could
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