The existence of the gene established by which of the following?
a. george beadle
b. edward tatum
c. gregor mendl
d. wilhelm johannsen
e. james watson

Wilhelm Johannsen.

Explanation:

Gene may be defined as the functional segment of DNA that are heritable in nature. Genes are responsible for the formation of protein product and observable characteristics of the organisms.

The Danish botanist, Wilhelm Johannsen coined the term gene. He explained the existence of the gene by the pure line experiments of the genetics. The term gene was established in opposite to the panegenes.

Thus, the correct answer is option (d).

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

archaebacteria are found in in forest soil.

hope i spelled it right lol

hope i

-lavira: )