The ribosomes are the " workbench " of protein synthesis with the rough ER accepting some polypeptide chains from the ribosomes studding it into it's lumen for modification. Then the modified proteins are shipped to the Golgi for further modification and shipment to wherever they are needed.
==Answers== Errors are usually made at the transcriptional level with DNA mutations. Sometimes, mutations in RNA lead to errors at the translational level also. Theses mutations cause a variety of problems with proteins.
mutations
Mutations
in the mitochondria
There would be no protein synthesis.
What would happen if..
Some common mistakes that can occur during the copying of DNA are: Insertion or deletion of bases: Errors in DNA replication can lead to the insertion or deletion of nucleotides, resulting in a frameshift mutation. This can alter the reading frame and disrupt the protein-coding sequence. Substitution of bases: Substituting or swapping one base for another can result in a point mutation. This can lead to changes in the amino acid sequence during protein synthesis, affecting protein function. Replication errors: DNA polymerase enzymes can make mistakes by incorporating incorrect nucleotides during replication, resulting in mismatched base pairs. Proofreading mechanisms usually help to correct these errors, but some mistakes can still get through, leading to mutations.
the mRNA wouldn't code for the right protein, or maybe might not even code for a protein at all
in the mitochondria
There would be no protein synthesis.
What would happen if..
Some common mistakes that can occur during the copying of DNA are: Insertion or deletion of bases: Errors in DNA replication can lead to the insertion or deletion of nucleotides, resulting in a frameshift mutation. This can alter the reading frame and disrupt the protein-coding sequence. Substitution of bases: Substituting or swapping one base for another can result in a point mutation. This can lead to changes in the amino acid sequence during protein synthesis, affecting protein function. Replication errors: DNA polymerase enzymes can make mistakes by incorporating incorrect nucleotides during replication, resulting in mismatched base pairs. Proofreading mechanisms usually help to correct these errors, but some mistakes can still get through, leading to mutations.
the mRNA wouldn't code for the right protein, or maybe might not even code for a protein at all
B. The amino acid sequence may be altered during protein synthesis.
The genetic code for a particular protein is copied from the DNA template to a strand of messanger RNA (mRNA). The message is written 'in reverse' due to complementary base pair boding and is 'reversed' again during translation back to the original base code.
The statement is true. Enzymes are proteins, and if the enzyme or protein is not present, the synthesis will not happen. Enzymes are generally what jump start a reaction or process.
Ribosomes are responsible for protein synthesis.If they are absent it affects the protein synthesis,which indirectly effects health.Therefore victims suffer from malnutririon such as Marasmus,Kwashiorkor.
the correct amino acids won't be transfered to the ribosomes and the protein synthesis would fail. PLATO says so.
Carbon synthesis
Not currently - but probably in the past RNA did the job. And before that it is possible that self-replicating proteins did it too.