Inheritance

• What is a chromosome?

  A long, coiled molecule of DNA that carries genetic informatiion in the forms of genes.
• Define gene

  Section of DNA that codes for specific sequence of amino acids
• What are alleles?

  Different versions of the same gene
• Define genotype

  An organism's genetic composition, describes all alleles
• Define phenotype

  An organism's observable characteristics
• Define homozygous

  Having two identical alleles of a gene (FF or ff)
• Define heterozygous

  Having two different alleles of a gene (Ff)
• What is a dominant allele?

  Describes an allele that is always expressed. Represented with a capital letter
• What is a recessive allele?

  An allele that is only expressed in the absence of a dominant allele. Represented with a small letter