In dna, guanine always forms hydrogen bonds with?

The DNA or deoxyribonucleic acid is composed of a pentose sugar, a base and phosphate group. The bases are adenine, thymine, cytosine and guanine. Guanine always forms hydrogen bonds with cytosine. Remember the statement “Apples in the Tree, Cars in the Garage”. The A stands for adenine and pairs with T-thymine then C – cytosine and G – guanine. 

the answer would be b i believe

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".