chromosomes

• chromosomes:

  • the form in which genetic information is stored
  • in the nucleus
  • contains coils of dna
• gene:

  • section of dna that codes for a protein
  • controls a characteristic
  • each chromosome carries many genes
• number of chromosomes:

  • 23 pairs regularly - 46 chromosomes
  • sex cells / gametes have 23 chromosomes
• diploid:

  • normal amount of chromosomes in cells
  • 23 pairs
• haploid:

  • half the amount of chromosomes in the cells
  • 23 chromosomes
  • in gametes