Question

N a DNA molecule the ratio of adenine (A) molecule to thymine (T) is 1:1. If in a strand of DNA there are 1 million A molecules, how many T molecules are expected in the same strand?

A) 1 million

B) 2 million

C) 3 million

D) 4 million

Answer 1

A) 1 million

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Answer 2

The correct answer to the question above is:

A) 1 million

Since ratio means the quantitative relationship between two values which the frequency of one value is contained within the second value. In this case, it is only 1:1 which means that whatever the number indicated in the first value is equal to the second value.