Set 2 - Problem Set 2 Bi9 Cell Biology Instructions: *...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Problem Set 2 Bi9 Cell Biology Instructions: * There are 3 Parts. * Type your answers. ** Print and turn in 3 separate sheets. 1 sheet for each part. All answers for each part should not fill more than one page, most questions will require at most 3-5 sentences. *You do not have to staple the sheets together, since you will…… * Write your FULL NAME on every page. * Problem Set 2 is due on Tuesday April 12th at 5 pm. A box will be available on the first floor of Broad to turn in your work. The following questions about the paper E. coli Mutant Pleiotropically Defective in the Export of Secreted Proteins (Oliver and Beckwith, 1981)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Part I: Temperature-sensitivity (20 points) A. (5 points) The authors isolate two temperature-sensitive (ts) mutants, MM49 and MM51, in a screen. Explain, in a sentence, what should be the direct observation in growing these mutants that will lead to the conclusion that they are ts? B. (5 points) Consider the behavior of MM49 and MM51 at different temperatures described in the paper. Both of the mutants are expected to have mutated versions of genes
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/12/2012 for the course BI 9 taught by Professor Aravin during the Spring '10 term at Caltech.

Page1 / 4

Set 2 - Problem Set 2 Bi9 Cell Biology Instructions: *...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online