Question

2. In your own words, what does 'negative autoregulation' mean?

what is the typical outcome of negative autoregulation in terms of level of expression of the gene?

3. in your own words, why are many mutations that disable a gene recessive?

4. in E. coli, for each of the following genotypes, do we expect lactase production or not under the following conditions? (see image attached for rest of question)

2. In your own words, what does 'negative autoregulation' mean? What is the typical outcome of negative autoregulation in terms of level of expression of the gene? 3. In your ow n words, why are many mutations that disable a gene recessive? 4. In E. coli, for each of the following genotypes, do we expect lactase production or not under the following conditions? (see the diagram on the last page of the exam if it helps) Remember that we use the slash ("") to indicate a fused cell with two genomes, where one cell had the genotype to the left of the slash and the other had the genotype to the right of the slash. Lactose+Glucose Lactose Glucose Neither No Yes No No WT R- RBS- SuperR,RBS- SuperR/RBS- CAP- CAP-/WT

Answer 1

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