Questions

Unbalanced forces are the forces which causes change in motion of the object. It sets the object in motion and may cause the object to move. If the object is already in motion, it changes the speed and direction of the object.

The Control Unit (CU) is digital circuitry containedwithin the processor that coordinates the sequence ofdata movements into, out of, and between a processorsmany sub-units

Lysogeny can result in all of the following except Immunity to reinfection by any phage. Lysogeny means phage DNA is incorporated in Host cell DNA. 

‘ought’ represents advice, ‘would’ represents strong possibility of an event here. ‘would have’ will be the correct grammatical expression here. The sentence expresses that the accused was not sent to jail because of one witness.

The trick here is to follow the structure of the statement. The blank is followed by 'of' and thus the blank will take a filler that can be followed grammatically by 'of' and also manages to give a proper meaning. On the basis of these filters, none of the options except option 2 makes any sense.