Answer:
Adenine and Thymine (Uracil) are complementary base pairs
Guanine and Cytosine are complementary base pairs.
Explanation:
The genetic material (DNA and RNA) in living organisms is a nucleic acid composed of nucleotide building blocks. The nucleotides are structurally composed of three components viz: pentose sugar (Ribose or Deoxyribose), Nitrogenous bases (Adenine, Guanine, Cytosine, Thymine and Uracil), and a phosphate group.
These nucleotide subunits that make up nucleic acids are named after the Nitrogenous base contained in their structure. Each nucleotide is held to another by an hydrogen bond, which forms the double-helical structure of the DNA. However, according to Chargaff, a nuceleotide is bonded to another in the DNA using the complementary base pairing rule. The complementary base pairing rule states that Adenine (A) will always hydrogen bond to Thymine (T) while Guanine (G) will always hydrogen bond to Cytosine (C) i.e. A-T, G-C.
Answer:
•Adenine(A)pairs with thymine(T)
•Guanine(G) pairs with cytosine(C)
Explanation:
Complementary base pairing rule, or Chargaff's rule, states that in DNA,a purine will always pairs with pyramidine and vice versa i.e
•A purine adenine(A) will always pairs with pyramidine thymine (T)
•A pyramidine cytosine (C) will always pairs with purine guanine(G)
Adenine forms two hydrogen bonds with thymine. Whereas, Cytosine forms three hydrogen bonds with guanine.