As a result of the ground-breaking work of Barbara McClintock, many scientists now believe that all of the information encoded in
50,000 to 100,000 of the different genes found in a human cell are contained in merely three percent of the cell’s DNA.
Option Elimination -
(A) 50,000 to 100,000 of the different genes found in a human cell are contained in merely - S-V issues. All refer to the singular information. So, we need "is."
(B) 50,000 to 100,000 of the human cell’s different genes are contained in a mere - S-V issues. All refer to the singular information. So, we need "is."
(C) the 50,000 to 100,000 different genes found in human cells are contained in merely - S-V issues. All refer to the singular information. So, we need "is."
(D) 50,000 to 100,000 of human cell’s different genes is contained in merely - "the" is required to put a cap on the max number of genes. Moreover, merely (adverb) is modifying the noun "three perfect." Adverbs cant modify nouns. We need an adjective.
(E) the 50,000 to 100,000 different genes found in a human cell is contained in a mere - ok