Essential ideas
Information stored as a code in DNA is copied onto mRNA
Understanding, application and skill
U1 Transcription occurs in a 5’ to 3’ direction. [RNA polymerase adds the 5´ end of the free RNA nucleotide to the 3´ end of the growing mRNA molecule.]
U2 Nucleosomes help to regulate transcription in eukaryotes.
U3 Eukaryotic cells modify mRNA after transcription.
U4 Splicing of mRNA increases the number of different proteins an organism can produce.
U5 Gene expression is regulated by proteins that bind to specific base sequences in DNA. U6 The environment of a cell and of an organism has an impact on gene expression.
A1 The promoter as an example of non-coding DNA with a function.
S1 Analysis of changes in the DNA methylation patterns.
U2 Nucleosomes help to regulate transcription in eukaryotes.
U3 Eukaryotic cells modify mRNA after transcription.
U4 Splicing of mRNA increases the number of different proteins an organism can produce.
U5 Gene expression is regulated by proteins that bind to specific base sequences in DNA. U6 The environment of a cell and of an organism has an impact on gene expression.
A1 The promoter as an example of non-coding DNA with a function.
S1 Analysis of changes in the DNA methylation patterns.
Vocabulary | |
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Nature of science
Looking for patterns, trends and discrepancies—there is mounting evidence that the environment can trigger heritable changes in epigenetic factors. (3.1)
DNA and Genetics is fast evolving area of Biological research. One of the very interesting areas of current research is Epigenetics. How does this fit in with what you know about DNA and how is it contrary to accepted theory? Learn more about Epigenetics by Learn.Genetics |
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