10127422
Beschreibung
Mindmap von Jumael Zafar, aktualisiert more than 1 year ago
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Erstellt von Jumael Zafar
vor etwa 7 Jahre
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Protein
Synthesis
- Transcription
- A strand of mRNA is produced using
one strand of complementary DNA.
Anmerkungen:
- mRNA- Messenger Ribonucleic Acid
- 1. An RNA Polymerase enzyme
attaches to a section of DNA.
- 2. This enzyme breaks up the
Hydrogen bonds between the
bases, in the DNA.
- 3. The DNA separates, leaving its strands
exposed.
- 4. The RNA Polymerase makes
an mRNA using free floating
nucleotides
- 5. One of the DNA strands is
used as a template to make
this mRNA.
- 6. Complementary base-pairing ensures that
the mRNA is an exact match.
- 7. Lots of condensation reactions occur
to join all the nucleotides.
Anmerkungen:
- The mRNA that is produced is pre-mRNA, it contains both introns (non-coding bases) and exons.
- Splicing occurs to remove the introns.
- 8.Finally, the mRNA detaches and leaves the
nucleus.
- 7. Lots of condensation reactions occur
to join all the nucleotides.
- 6. Complementary base-pairing ensures that
the mRNA is an exact match.
- 5. One of the DNA strands is
used as a template to make
this mRNA.
- 4. The RNA Polymerase makes
an mRNA using free floating
nucleotides
- 3. The DNA separates, leaving its strands
exposed.
- 2. This enzyme breaks up the
Hydrogen bonds between the
bases, in the DNA.
- This is the first process of protein synthesis.
- A strand of mRNA is produced using
one strand of complementary DNA.
- Translation
- A polypeptide (protein) is produced
using the mRNA as a template.
- 1. Firstly, the mRNA leaves the nucleus
through the nuclear pore.
- 2. It then attaches to a
ribosome in the cytoplasm.
- 3. The first set of codon
(triplet bases) is translated, on
the mRNA.
Anmerkungen:
- A codon is a set of three bases.
- 4. A tRNA with the correct complementary anticodon,
comes and pairs up with the first codon.
Anmerkungen:
- tRNA-Transfer Ribonucleic Acid
- 5. The tRNA has an amino acid
attached to it at the other end
of it.
- 6. Next, the second codon on the mRNA
is translated using another tRNA.
- 7. Now, there are two amino
acids next to each other, and
they form a peptide bond by a
condensation reaction.
- This process is repeated until
a stop signal is reached, when
the protein detaches and
leaves the cell to do its job.
- This process is repeated until
a stop signal is reached, when
the protein detaches and
leaves the cell to do its job.
- 7. Now, there are two amino
acids next to each other, and
they form a peptide bond by a
condensation reaction.
- 6. Next, the second codon on the mRNA
is translated using another tRNA.
- 3. The first set of codon
(triplet bases) is translated, on
the mRNA.
- 2. It then attaches to a
ribosome in the cytoplasm.
- This is the final process of protein synthesis.
- A polypeptide (protein) is produced
using the mRNA as a template.
Medienanhänge
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