dna

• what is dna?


  it’s the chemical that all of the genetic material in a cell is made up from
• The genetic material in the nucleus of a cell is composed of a chemical called DNA. DNA is a polymer made up of two strands forming a double helix. The DNA is contained in structures called chromosomes
• what is a dna polymer made up

  two strands forming a double helix
• what is a dna contained in structures called?

  chromosomes
• what is a gene?


  a small section of dna on a chromosome. each gene codes for a particular sequence of amino acids, to make a specific protein
• what is a genome?


  The complete set of genetic material in an organism.
• why is understanding the human genome important for science and medicine?

  it allows scientists to identify genes in the genome that are linked to different types of diseases > helps us develop more effective treatments
• what are polymers made up of?

  repeating units of nucleotides
• what do nucleotides consist of?

  sugar, a phosphate group and one base
• what are the four different bases attached to the sugar in a nucleotide?

  A, T, C, G
• what pairs go together in nucleotides?


  a&t c&g
• what do the order of the bases decide?

  the order of amino acids in a protein