In the context of fluid dynamics, interference refers to

o

a. the results of two waves meeting

o

b. anything that changes the course of a wave

c. the consequences of waves hitting the shore

o

d. the effect of different mediums of waves interacting

Option A

Explanation:

When two water wave’s interference, they superimpose on each other (after originating from a common point) there by producing bigger water waves or a smaller water waves. Thus interference can be of two types a) constructive and b) destructive. However, this concept applies exactly the same way for other wave forms such as sound waves etc.  

Hence, option A is correct

prokaryotic cells do not have a nucleus in which the dna is stored in, it floats freely inside the cell.

eukaryote cells do have a nucleus in which the dna is stored in.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."