Which of the following activities are part of scientific investigations? A.
communicating
B.
comparing and contrasting
C.
observing
D.
all of these

the answer is D

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.'

the growth of the plants is affected by the heat of the light. what is the student doing?

idk what happened..you tell