Briefly explain the role of tumor suppressor genes play in cancer.  List two functions of tumor suppressor genes.  Use the BRCA1 and BRCA2 gene in your discussion. [2 pts]

In eukaryotic cells, what are the three stages of translation?  Which molecule(s) has/have to bind onto the RNA at the start of the process? What triggers the termination of translation (be specific)? [2.5 pts]

Briefly explain why nucleotide-pair insertions/deletions are more dangerous compared to single nucleotide-pair substitutions. [2 pt]

According to the results of Srb and Horowitz’s experiment on mutant strains of bread mold (seen below), what can you conclude about the Class II mutants?

Evaluate as requested.Given that g(x) = 3×3, find g(2 + h).

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Solve.Bob wants to fence in a rectangular area in his yard for his dog. He has 60 feet of fencing to work with and wants to use it all.  He will position the dog run against the house, so that fencing is only needed for three sides. a.  Draw and label diagram for Bob on your paper, with the two equal sides of fencing needed labelled x feet.  b.   Express the area of the dog run as a function of x. A(x) =  

The pituitary gland is formed from two different embryonic sources: the anterior and intermediate lobes of the pituitary comes from Rathke’s pouch while the posterior lobe comes from:

Briefly describe the lytic cycle of a bacteriophage.  Are there mechanisms in the bacterial cell that can defend against bacteriophages?  If so, what are they? [1.5 pts]

Briefly explain the difference between the action spectrum and the absorption spectrum [1 pt]