The answer would be A Rachel Carson
Answer:
The correct order of formation of cDNA or complementary DNA are described below.
Explanation:
The DNA that is synthesized from mRNA with the help of reverse transcriptase enzyme is known as cDNA or complementary DNA.
Formation of cDNA
Step 1 Mature RNA is isolated
Step 2 Reverse transcriptase provided with a primer,synthesize a strand of cDNA without introns.
Step 3 The mRNA is hydrolyzed by raising the pH.
Step 4 A primer site is created on the single stranded cDNA molecule.
Step 5 A complementary DNA strand is synthesized forming double stranded cDNA molecule.
I believe the correct answer from the choices listed above is option A. Harry Hess used new technologies made available in the 1950s to observe and measure seafloor spreading. Harry Hess<span> describes the theory of sea-floor spreading. Hope this answers the question.</span>
Genetic variation is the answer to ur question
