DNA 2 key terms

• Where are the chromosomes found in the cell?

  Nucleus
• What are the different versions of a particular gene.

  Alleles
• If both alleles are the same, the person is said to be __________ for that gene.

  Homozygous 
• Alleles can be either dominant or ...

  recessive
• In order to be expressed, how many recessive alleles must be present? 

  2
• What is a phenotype?

  The characteristics an organism has as a result of their genotype