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Discuss the process of natural selection as defined by Darwin. How did Darwin's theories differ from his predecessors? In your opinion, have his theories proved to be correct? Why and why not? Be prepared to backup your answers!
Describe Frederick Griffith's experiments with bacterial transformation, how do they suggest that DNA, not protein is the hereditary material?
Assume you are interested in performing a mutagenesis study and you design oligonucleotide primers and perform a polymerase chain reaction to induce a mutation of interest into a synthetically generated PCR DNA product.
Considering an E. coli promoter that could be recognized by a ?70-containing RNA polymerase holoenzyme, which of the promoter elements are always present, and which can be missing or altered? How does this E. coli promoter compare to a typical euk..
A patient with hypothyroidism presents with low T3 and T4, and elevated TSH & antibodies to thyroglobulin. The thyroid is infiltrated with lymphocytes that have replaced large part of thyroid.
If A/A x B/B is crossed with a/a and the F1 is testcrossed, what is the genotype and percenage of every progeny if the two genes are unlinked;
GTP is again added to the redissolved pellet proteins, and the solution is again warmed for a few minutes. Then centrifugation at similar speed described above is again performed. This process is repeated several times.
You want to find the gene that codes for bacteriocin, and map it on the bacterial chromosome?
Haemophilus influenza requires hemin to synthesize cytochromes and NAD from other cells. For what does it use these two growth factors? What disease(s) does H. influenza cause?
The following Punnett square shows the inheritance of the sickle cell and SRY genes, with X representing the X chromosome with no SRY gene and Y representative the Y chromosome which does have an SRY gene. Complete the Punnett square.
Assume your lab partner leaves in the middle of making a 50mM NaCl solution. You know that they transferred 6mls of a 250mM stock solution into a beaker,
The sister of a great-grandfather shared by first cousins died of an autosomal recessive disorder. If these cousins mate, what is the chance that their child will have the disease?
Which of these observations are testable.
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