Respuesta :
Summary. Base pairs occur when nitrogenous basesmake hydrogen bonds with each other. Each base has a specific partner: guanine with cytosine, adenine with thymine (in DNA) or adenine with uracil (in RNA). The hydrogen bonds are weak, allowing DNA to 'unzip'.
Answer:
The correct answer will be-thymine
Explanation:
The nitrogenous bases form base pair following the complementary rule suggested by the Chargaff.
The Chargaff suggested that purine binds pyrimidine where adenine will bind thymine and guanine will bind the cytosine respectively in a DNA. This adenine binds the guanine by forming two hydrogen bonds between them whereas the cytosine binds guanine by three hydrogen bonds.
Thus, thymine is the correct answer.
