DNA - DNA DNA: Deoxyribonucleic acid DNA forms a long...

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DNA DNA: Deoxyribonucleic acid DNA forms a long winding shape called a helix. This helix has two main strands, so it’s a double helix. DNA carries the information necessary for normal cellular functioning. DNA is the same in all living things. DNA is organized into chromosomes human cells carry 46 chromosomes. DNA is like a cookbook that is so large it comes in many volumes. Chromosomes Chromosomes: a long thread of DNA, a portion of genetic material There are 44 ‘autosomes’ (regular) chromosomes in humans. There are 2 ‘sex chromosomes’, in a woman they are XX and in a man they are XY. 1 chromosome is like 1 volume of a multivolume cookbook set. Genes Gene: a gene is a long section of DNA that determines a characteristic. E.g. hair color, eye color, skin color, ECT. .. There can be 1,000 genes per chromosomes. A gene is like a ‘recipe’ in a volume of a cookbook. Each gene produces a protein, just like a recipe ‘produces’ a dish/meal.
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DNA - DNA DNA: Deoxyribonucleic acid DNA forms a long...

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