Chromosomes (1.2.1) PDF
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Outwood Academy Foxhills
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Summary
This document provides a brief overview of chromosomes, their role in genetic information, and the different number of chromosomes in different cells. It explains the structure of chromosomes and includes the number of chromosomes in body cells and sex cells.
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Chromosomes (1.2.1) The nucleus contains your genetic information. This is found in the form of chromosomes, which contain coils of DNA. A gene is a short section of DNA that codes for a protein and as a result controls a characteristic- th...
Chromosomes (1.2.1) The nucleus contains your genetic information. This is found in the form of chromosomes, which contain coils of DNA. A gene is a short section of DNA that codes for a protein and as a result controls a characteristic- therefore each chromosome carries many genes. There are 23 pairs of chromosomes in each cell of the body, as you inherit one from your mother and one from your father - resulting in 46 chromosomes in total in each cell. Sex cells (gametes) are the exception: there are half the number of chromosomes, resulting in 23 chromosomes in total in each gamete cell. Chromosomes (1.2.1) 1
