Biology Genes and what they do. 1.5 / 5 based on 3 ratings ? BiologyGCSEAll boards Created by: Saloni ShahCreated on: 14-01-11 18:09 Genes and what they do Young Animal, and plants look like their parents because they inherit information from them. This information is passed on from parents to offspring by genes. Genes are linked together in long chains called chromosomes. The nucleus of a cell normally has two sets of chromosomes on it. Genes and chromosomes are made from a chemical called deoxyribonucleic acid- DNA for short. one set -mothers egg cell . second set -fathers sperm cell Egg and Sperm cells are special cells which contain half of the genes that normal cells have. These two sex cells (gametes) join together during fertilisation. We develop from a fertilised egg. Fertilised eggs have two sets of genes The genes we get, control the development of characteristics we inherit. 1 of 2 Genes and what they do 2 of 2
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