One way new kinds of genes can evolve is by duplication of existing genes followed by divergence of the duplicated copy. Give a specific example of a family of genes where this has occurred, and explain why gene duplication could be evolutionarily advantageous. The table below describes two different general transcription factors. Complete the table using the choices from the list below. Use diagrams as needed to supplement your description.
Prokaryotic genes can be inducible or repressible.
Give a specific example of each type of regulation, including the gene that is regulated and a brief description of the conditions that lead to increased transcription of the gene in question. Match the experimental problem on the left with the approach best suited to analyze that problem from the list on the right. Two mutations that have been isolated are mutations in the same gene rather than mutations in separate genes. Determining the proportion of a genome that is composed of unique and repetitive DNA sequences. Determining the specific portion of the 5' flanking region of DNA that interacts with a transcription factor.