Bio4241 - Comprehensive exam questions, for Wednesday, 07 April 2010, 2-4P

Instructions: Prepare answers for each of the following questions: your answer for each should fit on the front and back of no more than two lined sheets of paper. For the exam, I will select at random five questions. You will answer any three questions; you may not answer a question pertaining to your own group's presentation.

You may bring notes or outlines of your prepared answers, on the front and back of one 8.5 x 11 sheet of paper. [Please don't try to cram complete essays onto this page!]. You will have two hours to answer the four questions.


What is a Gene: How would you define the concept "gene" in 2010? Compare and contrast your definition with the gene as it was understood by the time of the “cracking of the genetic code” ca. 1965, and the classical notion of "gene" as it was before Watson & Crick (1953).

Chap.  7: Answer Question #11 on the mapping of bacterial chromosomes (p. 209 in MGA2)

Chap. 12:
Explain the difference between "Forward" & "Reverse" genetics. Describe how each approach would be applied to understanding the nature of wrinkled vs. round peas. (cf. discussion of Alkaptonuria, pp. 240-241)


Chap. 13: For each of the four lac-operon genotype classes in the table below, explain the associated phenotypic pattern of B-Galactosidase activity, in the presence or absence of lactose.

B-Gal phenotypes

Chap. 15:
Answer Question #21 (p. 508), concerning the genetics of Retinoblastoma.


Chap. 16: Explain the genetic basis of the banding pattern in Figure 16-25 (b) (p. 536) ;
                   include a discussion of the technical means by which the colored bands were produced


Bioinformatics:
Choose any one of the following NGS methods: explain the principle at the level of a Bio2250 class lecture
    Roche/454 FLX Pyrosequencer (www.454.com)
    Illumina Genome Analyzer (www.illumina.com)
    Applied Biosystems SOLiD Sequencer (marketing.appliedbiosystems.com)

Chap 18: Quantitative Genetics: In Figure 18-7 (p. 595), Explain the range of phenotypic response of Drosophila to different temperatures, in terms of the Norm of Reaction