biology

• phenotype- physical traits, ex colour of peas
• genotype- genetic material, Aa, AA, aa
• heredity- how traits are passed on to offspring
• DNA is stored in the nucleus
• genes live in chromosomes
• there are 46 chromosomes in the cell, half from each parent
• allele


  variables of genes, dominant or recessive
• gene


  section of DNA, pass down phenotype
• Heterozygous


  Yy, different one dominant
• homozygous


  YY or yy, same