What is responsible for identifying foreign invaders and remains in the system for a long period of time.
a. red blood cells
b. axons
c. antigens
d. lymph nodes

option c is the correct answer.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'

idk what happened..you tell

answer: i feel like it would be 3

explanation: