( n
(
10
11
10
IT
Samples taken
A
Ilid Ocean Ridge
samples taken
CLEAR ALI
Look at the diagram above. A geologist studying the bottom of the ocean collected
samples of rock. This diagram shows numbered samples of rocks. Identical rocks at
positions two and three were found on both sides of a ridge. What is this evidence is
happening at the mid-oceanic ridge?

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.'

1. is geographic distribution

2 is increasing complexity

3 is transitional forms