Question

In the DNA of E. Coll the mole ratio of adenine to cytosine is U. If the number of moles of adenine in the DNA is 350000. the number of moles of guanine is equal to:

• A. $\frac{350000}{U}$
• B. $\frac{225000}{U}$
• C. $500000\times U$
• D. $700000$

Answer 1

Answer: (A)

$\frac{350000}{U}$

Moles of Adenine = Moles of Thymine

Moles of Guanine = Moles of Cytosine

Mole ratio of Adenine : Cytosine = U : 1

Moles of Cytosine =Moles of Guanine $=\frac{MolesofAdenine}{U}=\frac{350000}{U}$