Many factors affect soil fertility. One biotic factor would be the

A) mineral content of the soil.
B) moisture content of the soil.
C) number of earthworms in the soil.
D) presence or absence of toxic chemicals.
El

the answer is b.) hydrogen bonds between bases.

it should be briana that has it to me

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.'