Group E Topics 11&12.txt

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Group E Topics 11&12.txt
2014-02-10 19:46:59

Topics 11&12
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  1. This is the process that creates an exact copy of a DNA molecule. It happens during interphase of the cell cycle.
    DNA Replication
  2. This produces two copies of DNA that each contains one of the original strands, and one entirely new strand.
    Semi Conservative
  3. These molecules are single stranded and nucleotides have ribose rather than deoxyribose sugar. This also contains four nitrogen bases adenine, cytosine, guanine nucleotides, and uracil nucleotides in place of thymine nucleotides.
    Ribonucleic Acid
  4. In RNA U pairs with A, different types of RNA have different size ranges and functions. The process of copying DNA information into RNA sequence is called?
  5. To complete protein synthesis, Mrna must leave the nucleus and associate with a ribosome. There the mRNA is translated from the “language” of nucleic acids to the “language” of amino acids.
  6. In DNA the pairs are adenine and thymine, guanine and cytosine. While in RNA they are adenine , uracil , guanine and cytosine. DNA: A-T and C-G RNA: A-U and C-G
    Base Pairing
  7. Each amino acid in a protein is specified by a series of three bases in DNA and then by a series of three bases in mRNA. This is how genetic code is expressed.
  8. This RNA molecule copies the code (transcription) From the DNA in the nucleus and carries the code to the ribosomes in the cytoplasm.
    Messenger RNA (mRNA)
  9. This is a component of ribosome it provides structure and enzyme activity for ribosomes. This is also holds the growing chain of amino acids.
    Ribosomal RNA ( rRNA)
  10. This aligns amino acids in a way that enables them to bond to each other. This is also an RNA molecule found attached to individual amino acids within the cytoplasm which translates code and transfers the amino acid to their proper site - Gathers the amino acids.
    Transfer RNA (tRNA)
  11. This is one of the four nitrogen bases found ONLY in RNA molecules. This is also what differs RNA from DNA.
    Uracil (U) Nucleotides