Gene Expression
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Higher Human Biology-Unit 1
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9 Terms
Types of RNA
mRNA
tRNA
rRNA
mRNA
carries the complementary copy of the genetic code from the ribosome to the nucleus
Codon
a triplet of bases in mRNA
tRNA
folds due to complementary base pairing and carries its specific amino acid to the ribosome.
Anti codons
a triplet of bases for tRNA
transcription
RNA polymerase moves along the DNA, breaking the hydrogen bonds and unwinding it. RNA polymerase then synthesises a primary mRNA transcript through complementary base pairing
RNA splicing
introns are removed from the primary transcript, forming the mature mRNA transcript
translation
The ribosome exposes one codon on mRNA, allowing tRNA to bring its specific amino acid. The tRNA anticodon the complementary base pairs with mRNAs codons bringing its amino acid. The ribosome moves and this process is repeated until a stop codon is met
Peptide bonds
The bonds alligning amino acid makes
