Zusammenfassung der Ressource
Genes, Alleles, & The Central Dogma
- Transcription occurs in the nucleus of the cell. (DNA -> mRNA)
- Translation occurs in the cytoplasm of the cell. (mRNA -> protein)
- Structural Gene
- Regulatory Region
- Determines when and
how often transcription
occurs
- Transcription factors bind
- Protein-encoding Region
- Specifies the amino acid
sequence of the protein
- RNA polymerase binds to a
special DNA sequence
called the promoter
- DNA
- The basic unit of DNA is the nucleotide
- A nucleotide consists
of a phosphate,
sugar, & nitrogenous
base
- Sugar
- Deoxyribose in DNA
- Ribose in RNA
- Nitrogenous Bases
- Adenine, Thymine,
Guanine, &
Cytosine; Uracil
instead of Thymine
in RNA
- Post-translational modification of proteins
- Folding, addition of sugars
and/or lipids, shortening, linking
to other proteins
- Protein Targeting
- A short amino acid sequence in the
protein (signal sequence) directs the
protein to various locations in the cell