Signs of the structure of dna and rna macromolecules?
| May 3, 2021 | education
DNA and RNA molecules are polymers, the monomers of which are nucleotides. Each nucleotide consists of a nitrogenous base, a carbohydrate, and a phosphoric acid residue.
The DNA molecule is a double helix, the RNA molecule consists of one polynucleotide chain.
There are 4 nitrogenous bases in the DNA molecule:
adenine A, thymine T, guanine G, cytosine C.
The RNA molecule contains uracil U instead of thymine.
Nucleotides are connected in pairs, complementary.
DNA: A – T; G – Ts.
RNA: A – U; G – Ts.
In DNA, the carbohydrate is deoxyribose (deoxyribonucleic acid), in RNA, ribose (ribonucleic acid).
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