You and Your Genes - Genes

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Genes are found in our chromosomes, which parents pass onto their offspring in their sex cells in reproduction. Different versions of the same gene are called alleles, and these can determine features like eye colour, and the inheritance of disorders such as cystic fibrosis.


The nucleus controls the activities of a cell. The instructions for how an organism develops are found in the nuclei of its cells.


Chromosomes are structures found in the nucleus of most cells. They consist of long strands of a substance called deoxyribonucleic acid, or DNA for short. A section of DNA that has the genetic code for making a particular protein is called a…


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