Which event shows conditions that lead to natural selection? A-Weeds are removed by a gardener from a public park

B-Wild horses are tamed over many years and selectively allowed to reproduce.

C-A crab produces millions of offspring in a year, but few survive to adulthood.

D-Farmers collect the largest corn seeds to plant in their fields the following year.​

correct answer is a. and 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.'