题目选项分析

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.

As a result of the ground-breaking work of Barbara McClintock, many scientists now believe that all of the information encoded in the 50,000 to 100,000 different genes found in a human cell is contained in a mere three percent of the cell's DNA.