The graph illustrates the growth of human population since 10,000 b. c. which statement is not supported by the data in the graph?
a) human populations have been affected by limiting factors.
b) human population has increased dramatically over the last century.
c) most of the increases in human populations have happened recently.
d) human population growth very slowly over the first 8,000 years of human existence.

ANSWER: A. Due to modern medicine and agriculture, the human population has grown exponentially in the last few hundred years. Since the growth has not slowed down, as seen by the big spike in the graph to the far right, there is no evidence that the population has been affected by limiting factors (things that would limit how big the population could get --> example: amount of food available).

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.'