Individuals who are genetically predisposed to developing ca…

Individuals who are genetically predisposed to developing cancer are often (            ) for one of tumor suppressor genes.  Cancer development is seen in cells in which the remaining normal allele is inactivated by a (                   ) mutation.  By pedigree analysis, inherited forms of cancer display a (                              ) inheritance pattern.

By binding to an enhancer, an activator can interact with ( …

By binding to an enhancer, an activator can interact with (                                ) nearby the core promoter of a eukaryotic gene to covalently modify histones, thereby promoting the formation of the preinitiation complex.  

On its chromosome, an E coli cell has the genotype lacI+ lac…

On its chromosome, an E coli cell has the genotype lacI+ lacO- lacZ+ lacY+ lacA+.  It has an F’ factor with the genotype lacI+ lacO+ lacZ+ lacY+ lacA+.  What is the expected level of expression of the lac operon genes (lacZ+ lacY+ lacA+) in the absence of lactose?