Genes, DNA, Chromosomes - Sets of instruction, Membrane - Outer border, Cytoplasm - Liquid material, Nucleus - It contains chromosomes, Autosomes - They look the same in males and females, Sex chromosomes - They differ between males and females, Chromosomes - Long strings of DNA, DNA - It is shaped like a twisted ladder, Adenine, Thymine, Guanine, Cytosine - They represent the steps of the twisted ladder, Gene - Stretch of a DNA,

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