Alleles

• What is an allele?

  A version of a gene
• Where are alleles found?

  On chromosomes
• How many alleles do you get for each gene?

  2
• One allele comes from your?

  Mum and Dad
• What does “dominant” mean?

  Always shows if present
• What does “recessive” mean?

  Only shows if two copies
• Which is a dominant allele?

  B
• Which is a recessive allele?


  b
• How are dominant alleles usually written?

  Capital letters
• How are recessive alleles usually written?

  Small letters