What is the relationship between DNA, genes, chromosomes, etc?
In: Biology
At a simple level, think of DNA, genes, and chromosomes like the alphabet.
Genes are like sentences. Chromosomes are like paragraphs, or long texts.
DNA is all the letters that make these up. Except there are only 4 letters, making up many, many words, sentences , paragraphs and texts.
On a slightly more chemical level: DNA is a complex chemical structure. There are 4 “types”, to which we assign a letter, A,TC or G.
DNA exists in loooooong strands. A number of different letters in a row forms a gene.
A loooooong number of genes together forms a chromosome. Humans have 23 pairs of chromosomes.
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