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How does a scientific theory differ from a scientific hypothesis?
A. A theory is an explanation for a general phenomenon or observation; hypotheses treat more specific observations.
B. A hypothesis is an explanation for a general phenomenon; theories treat more specific issues.
C. A hypothesis has data to back it up, while theories do not
D. Theories define scientific laws; hypotheses are used to set up experiments.
E. There is no difference-the terms are interchangeable.
T.J. and Tyler were building a tree-house. While searching for a board in a pile of used lumber, T.J. stepped on a rusty nail that penetrated deep into his foot, causing it to bleed.
What type of promoters are found in the T-DNA that control oncogenes and opine synthesis genes? What is the basis for tumor formation in the Agrobacterium-plant? What causes the tumor to form? What products of the bacteria are needed to cause plan..
Consider a human population that is similar to the ideal Hardy-Weinberg population in that it is very large and generally random-mating. Although mutations occur, they alone do not lead to great changes in allele frequencies.
Explain how you would prepare 200 ML of a 0.25 Msoluation of NaOH from a 3 M stock solution?
Determine that human activities have caused the extinction of thousands of species annually; whereas, the natural rate of extinction is thought to be a few species every year.
A diploid heterozygous cell with the genotype Bb undergoes meiosis and no crossing over occurs.
A botanist takes a sample of 300 plants from a population and determines the genotype of each one for an esterase locus. The locus has two alleles segregating in the population
Assume you have made several dilutions of p nitrophenol and are reading the absorbance of each sample on a spectrophotometer.
Discuss how would you expect your control tube to look after incubation for gelatinase test? Would it have to be cooled prior its evaluation?
Histone proteins from many different eukaryotes are highly similar in their amino acid sequence, making them among the most highly conserved eukaryotic proteins. What functional properties of histone proteins might limit their diversity?
A batch animal cell culture has a productivity of 1.8 g/L*day, with a MUmax=0.5 days, a 10% inoculums and a turnaround time of 5 hours. If a continuous culture could operate at a dilution rate of 90% MUmax, explain what would be the productivity.
An SDS-PAGE gel is run of proinsulin and insulin.Samples were treated with beta-mercaptoethanol prior to electrophoresis.Draw a picture of the predicted results.
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