Recent Changes

Monday, October 18

Sunday, September 12

Saturday, August 28

  1. page DNA edited ... Nucleotides join together in a chain to build up each strand of a DNA molecule. The order of…
    ...
    Nucleotides join together in a chain to build up each strand of a DNA molecule.
    The order of the bases that are in this chain is very important. It is the order of the bases that determines the structure of the proteins that our DNA codes for.
    When a DNA molecule is being made, the two strands are held together by hydrogen bonds. These bonds are formed between the bases.
    But bonds can only form between particular bases.
    Adenine will bond with Thymine
    Cytosine will bond with Guanine
    These are the only bonds that can form. A typical DNA strand may look something like the one below.
    {DNA_helix.jpg}
    DNA coils tightly and forms larger structures called chromosomes.

    (view changes)
    6:42 pm
  2. file DNA_helix.jpg uploaded
    6:41 pm
  3. page DNA edited ... DNA is a double stranded molecule. The two strands are joined together by hydrogen bonds and t…
    ...
    DNA is a double stranded molecule. The two strands are joined together by hydrogen bonds and twisted together. The resulting shape is know as a double helix.
    {dna-testing-lg.jpg}
    ...
    a base.
    In the picture above, you can see that DNA looks a bit like a twisted ladder. The sugars and phosphates make up the sides of the ladder and the bases make up the rungs.
    Below is a picture of one nucleotide.
    {nucleotide.jpg}
    There are 4 different types of bases. Their names are adenine (A), thymine (T), cytosine (C) and guanine (G)
    Nucleotides join together in a chain to build up each strand of a DNA molecule.
    The order of the bases that are in this chain is very important. It is the order of the bases that determines the structure of the proteins that our DNA codes for.

    (view changes)
    6:35 pm
  4. file nucleotide.jpg uploaded
    6:31 pm
  5. page DNA edited ... It is a long molecule that is made up of lots of smaller units. These units are called nucleot…
    ...
    It is a long molecule that is made up of lots of smaller units. These units are called nucleotides.
    DNA is a double stranded molecule. The two strands are joined together by hydrogen bonds and twisted together. The resulting shape is know as a double helix.
    {dna-testing-lg.jpg}
    Each nucleotide is made of three main components. A sugar a phosphate and a base.
    In the picture above, you can see that DNA looks a bit like a twisted ladder. The sugars and phosphates make up the sides of the ladder and the bases make up the rungs.

    (view changes)
    6:11 pm
  6. 6:07 pm
  7. page DNA edited Back to Genetics DNA stands for deoxyribonucleic acid. It is a long molecule that is made up of…
    Back to Genetics
    DNA stands for deoxyribonucleic acid.
    It is a long molecule that is made up of lots of smaller units. These units are called nucleotides.
    DNA is a double stranded molecule. The two strands are joined together by hydrogen bonds and twisted together. The resulting shape is know as a double helix.

    (view changes)
    6:05 pm
  8. page Genetics edited ... Meiosis Genetic Problems Sex Detemination Determination Monohybrid Crosses Applications…
    ...
    Meiosis
    Genetic Problems
    Sex DeteminationDetermination
    Monohybrid Crosses
    Applications of Genetics
    (view changes)
    6:02 pm

More