Which of the following is an advantage of an in vivo experiment? A. Some enzymes behave naturally in a test tube
B. Variables and environmental conditions are controlled
C. Confusion is caused by the presence of many substances
D. Cellular components interfere with observations

answer; i believe the correct answer to the above question is ( friction)

not sure if this is what you'r looking for eubacteria and archaebacteria

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it

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.'