Topic 7.2 Transcription and Gene Expression
- Information stored as a code in DNA is copied onto mRNA.
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)
7.2 U 1 Transcription occurs in a 5’ to 3’ direction.
7.2 U 2 Nucleosomes help to regulate transcription in eukaryotes.
7.2 U 3 Eukaryotic cells modify mRNA after transcription.
7.2.U 4 Splicing of mRNA increases the number of different proteins an organism can produce.
7.2 U 4 Bound ribosomes synthesize proteins primarily for secretion or for use in lysosomes
7.2 U 5 Translation can occur immediately after transcription in prokaryotes due to the absence of a nuclear membrane.
7.2 U 6 Gene expression is regulated by proteins that bind to specific base sequences in DNA.
7.2 U 7 The environment of a cell and of an organism has an impact on gene expression.
7.2 A 1 The promoter as an example of non-coding DNA with a function.
7.2 S 1 Analysis of changes in the DNA methylation patterns.
In the News
In the News
- The nature versus nurture debate concerning the relative importance of an individual’s innate qualities versus those acquired through experiences is still under discussion. Is it important for science to attempt to answer this question?