Chromosomes© Copyright NewPath Learning. All Rights Reserved. 94-4736Visit www.newpathlearning.com for Online Learning Resources.chromatidscentromeregeneDNAAdenineCytosineGuanineThyminenucleusdouble-strandedchromosome(holds chromatids together)The hereditary information in DNA is stored as a code of four nitrogen bases: Adenine, Guanine, Cytosine and Thymine. Chromosomes Contain GenesEach chromosome is made up of thousands of different genes which contain the instructions for an organism's traits. How many chromosomes?Human 46Gorilla 48Craysh 200Cat 38Dog 78Pea plant 1446147838What is a Chromosome? Chromosomes are made up of DNA (deoxyribonucleic acid), the hereditary material in humans and most other organisms. Pairs of chromosomes are found in the nucleus of a cell. One chromosome from each pair is inherited from each parent. GTACSpecies & Chromosome NumberThe number of chromosomes is unique for each species. In each human body cell, there are 46 chromosomes, existing in 23 pairs.
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