Many mutations have been identified in the lac operon. A particular mutation in the CRP gene make the CRP protein bind to the lac promoter independent of the level of cAMP. Select all conditions which will lead to the operon being "on" with this mutation (For the purposes of these questions, either an extremely low level of expression or completely off are equivalent) MARK ALL THAT APPLY

Dominance the dominant allele doesn’t fully mask or hide the recessive. for example, a red carnation with a white carnation will produce a carnation. one gene one trait. well most of the time than one gene controls a trait. we are all different but genetically speaking we are % similar with regards to genetic makeup.

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.