A single nucleotide is made up of three components: a nitrogen-containing base, a five-carbon sugar, and a phosphate group. The nitrogenous base is either a.
Genes are made of a chemical called DNA, which is short for 'deoxyribonucleic acid'. The DNA molecule is a double helix: that is, two long, thin strands twisted.
Genes consist of three types of nucleotide sequence: This DNA is tightly packed into structures called chromosomes, which consist of long chains of DNA and.
A chromosome may contain tens of thousands of genes, each providing instructions on Each nucleotide is made up of three parts: a nitrogen- containing ring . they help accelerate (catalyze) chemical reactions – in this case, the formation of.
DNA and RNA have great chemical similarities. (multiple chemical units) composed of monomers (single chemical units), called nucleotides. with proteins can be stained with dyes and visualized in the light microscope as chromosomes.
(a) Each DNA nucleotide is made up of a sugar, a phosphate group The chromosomes of prokaryotes are much simpler than those of eukaryotes in many of.