Answer:
The correct answer is a inducer(lactose) = acts by stepping on the gas pedal.
Explanation:
In lac operon lactose act as an inducer.Lactose exerts its action by binding with the repressor and inducing a conformation al change in the repressor molecule and prevent the later from binding to the operator region.
This ultimately result in the expression of the structural genes such as Lac Z ,Lac Y and Lac A.
According to the given question if the lac operon is described using a car analogy then the inducer lactose will act by stepping on the the gas pedal and this is the positive regulation of Lac operon.
Answer:
D) Cell - Tissue - Organ - Organ system
Explanation:
Cell organization starting from cell to organ system shows the relationship among different levels of cell organization. The cell organization helps to know the structural and function of the organisms.
The correct order of cell organization:
Cell – tissue - organ - organ system
Different organsystems organise to for an organism. The cell is the simplest level and a group of cells (tissue) is the next higher level, a group of a tissues (organ) and a group of organs makes organ system which is the complex level of organization.
Oxygenated blood is on the left side. Hope this can help!:)
Answer: i think its a im so sorry if i get it wrong
Explanation: