It depends on if you're talking about the secondary colors of light or paint, but the answer here that is logical is B. orange :3
A little trick i learnt: The atomic number reflects how many electrons there are, and there must be an equal charge. therefore, there are the same amount of protons as there are electrons. so if it has 81 protons, we look for number 81 in the periodic table, Thallium
The lac repressor protein is bound to the operator region of the lac operon when there is no lactose in the medium. When introduced in lactose, it binds to an allosteric site on the repressor causing its to change conformation and release from the operator. This allows the polymerase that is bound to the promoter region to proceed transcription of the lac operon genes (LacZ, Lac A, and Lac Y). Translation of these genes forms enzymes that enable the organism to break down lactose for energy.
Antibiotics should be taken under the supervision of a well qualified doctor. Course (intake) of antibiotics should be completed as prescribed by the doctor. Antibiotics should be taken in the right amount and at the right time. A wrong dose of antibiotics makes the drug ineffective.Explanation: