Genetics Review

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Genetics Review
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Genetic Material

• The nucleus of a cell contains genetic material
• DNA
• Chromosomes
• Genes

www.kent.edu/projects/cell/page7.htm
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Genes

• Genes are short sections of chromosomes

http//www.accessexcellence.org
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Genes come in pairs

• Since chromosomes come in pairs (one from mom,
  one from dad) Genes come in pairs

http//anthro.palomar.edu/biobasis/images/karyotyp
e_male.gif
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Allele

• Alleles are versions of a gene
• Every gene has two or more alternatives

http//library.thinkquest.org