DNA

• what is DNA made of?


  a polymer
• what is the shape of DNA

  double helix
• what is a chromosome?


  long molecules of DNA
• how many chromosomes are in each cell?


  46
• how many pairs of chromosomes do we have?


  23
• what are women‘s chromosomes?


  XX
• what are men’s chromosomes?


  XY
• what is a gene?


  small section of dna that codes for a protein
• how many different types of amino acids are there?


  20
• what do genes code for?


  a sequence of amino acids which form a protein
• what is the genome?


  entire set of genetic material in an organism
• what are the 23rd pair of chromosomes known as?


  Sex chromosomes
• what is a gene?


  a small section of DNA that codes for a specific protein
• what is a disease called that comes from a gene?


  inherited