Question

A double stranded dna molecule contains 300 adenine molecules and 240 cytosine molecules. How many guanine molecules are in this molecule?

Answer 1

240 molecules

Step-by-step explanation:

According to the chargaff rules, the amount of adenine is equal to the amount of thymine and the amount of guanine is equal to the amount of cytosine. Therefore:

`G=C\\A=T`

Now, its easy to conclude:

`G=C=240\hspace{3}molecules`