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1. Most molecularbiologists think that viruses originated from fragements cellularnucleic acid. Which of the following observations supports this theory?
A) Viruses can infect both prokaryotic and eukaryoticcells'B) Viruses can reproduce only inside host cells.C) Viruses are enclosed in protein capsids rather than plasmamembranes.D) Viruses contains either DNA or RNA.E) Viral genomes are usualy more similar to the genome of thehost cell than to the genomes of viruses that infect other celltypes.2. Expression of a clonedeukaryotic gene in a bacterial cell involves many challenges. Theuse of mRNA and reverse transcriptase is part of a strategy tosolve the problem ofA) electroporationB) restriction fragment ligation.C) nucleic acid hybridization.D) post-transcriptional processing.E) post-translational processing.
Why is the hydroxyl functional group of carnitine used when it is combined with a fatty acid and could any other functional group, in theory, be used?
Belding's ground squirrels live in colonies. One of the advantages of living in a colony is that predation is decreased because individual squirrels will give alarm calls when a predator approaches the colony. Explain why this behavior of giving a..
Fungi play many important ecological roles. They are heterotrophic and break down organic matter extracellularity and then absorb the nutrients.
Which of the following is true of the evolution of cell membranes? Which of the following would likely move through the lipid bilayer of a plasma membrane most rapidly?
How are microsatellite markers scored (what are the alleles)? Why are microsatellites codominant markers? What are the advantages and disadvantages of using RFLP, AFLP, and microsatellite markers? If you don’t know any sequence information for the ..
The energy harvested from C-H bonds in glucose, transferred by electron carriers, contribute indirectly to production of ATP in mitochondria through chemiosmosis.
Applications of Different Observational Study Designs' indicating for every objective under pertinent study design.
A wild-type trihybrid soybean plant is crossed to a pure-breeding soybean plant with the recessive phenotypes pale leaf l, oval seed, and short height Compute the recombination fraction between T and L pair of genes.
Which of the following tumors can be surgically resected with no residual consequences?
Assume you are provided a solution of 5mM benzoic acid at pH 8. You determine the absorbance to be 2.9 ×103. You lower the pH to 3 with 100% acetic acid.
Acetylcholine is rapidly destroyed by the enzyme acetylcholinesterase. Like serine proteases contains Asp - His - Ser catalytic triad
Why does traveling up a mountain take you through biomes similar to those you would encounter traveling from the south to the north (in the northern hemisphere)?
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