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When a protein is synthesized what amino acid is always the first amino acid that is positioned during any protein synthesis?
"AUG" actually corresponds to a region of code on mRNA and is NOT an amino acid. The tRNA that has the anticodon 5' CAU 3' and recognizes AUG is a tRNA charged with Methionine. Therefore, methionine is the first amino acid incorporated into a growing polypeptide. Note this is true for only eukaryotes, prokaryotes have N-formyl methionine as their first amino acid.
Which type(s) of RNA is (are) involved in protein synthesis?
The three main types of RNA directly involved in protein synthesis are messenger RNA (mRNA), ribosomal RNA (rRNA), and transfer RNA (tRNA). The mRNA carries the message from the DNA, which controls all of the cellular activities in a cell. In prokaryotes and eukaryotes, tRNA and rRNA are encoded in the DNA, then copied into long RNA molecules that are cut to release smaller fragments containing the individual mature RNA species.
What chemical process creates the proteins?
Proteins are produced in all cells by protein synthesis. It requires the mRNA molecule produced from DNA in nucleus. Once it is transported to cytoplasm, ribosomes and tRNA molecules and enzymes will carry out protein synthesis.
During protein synthesis what happens to amino acids?
Amino acids are linked together in a specific sequence based on the instructions from mRNA during protein synthesis. Once the correct amino acid sequence is assembled, it folds into a functional protein with a specific structure and function. Any errors in the amino acid sequence can lead to misfolded proteins or protein dysfunction.
What is the three-letter code for lysine and what is its role in protein synthesis?
The three-letter code for lysine is Lys. Lysine is an essential amino acid that plays a key role in protein synthesis by helping to form peptide bonds between amino acids in the growing protein chain.
How is protein synthesis different in prokaryotes and eurkaryotes?
One way that protein synthesis differs between prokaryotes and eukaryotes is that gene groups that produce proteins are organized into operons in prokaryotes, but they are not organized into operons in eukaryotes. Also, protein synthesis in eukaryotes involves more protein and is a more intricate process than in prokaryotes.
Prokaryotes have what structure necessary for protein synthesis?
Prokaryotes have ribosomes, which are the structures necessary for protein synthesis. Ribosomes are responsible for assembling amino acids into proteins based on the instructions provided by messenger RNA (mRNA).
Where does RNA and protein synthesis take place in prokaryotes and eukaryotes?
In prokaryotes, RNA synthesis and protein synthesis takes place in the cytoplasm. In eukaryotes, RNA is produced in the cells nucleus and then moves to the cytoplasm to play a role in the production of protein.
In what ways are eukaryotes and prokaryotes similar?
Eukaryotes and prokaryotes are similar in that they are both types of cells that have a cell membrane, genetic material, and the ability to reproduce. They also both have ribosomes for protein synthesis.
Why is protein synthesis different in prokatyke and euroaytes?
Prokaryotes do not have a distinct nucleus, so transcription and translation both occur in the cytoplasm simultaneously. In eukaryotes, transcription occurs in the nucleus while translation occurs in the cytoplasm, separated by nuclear envelope. Furthermore, eukaryotes have additional complexity due to post-transcriptional modifications and protein processing that prokaryotes lack.
What organelle is responsible for producing protein?
ribosomes are responsible for protein synthesis in a cell. prokaryotes consists of 70s type of ribosome whereas eukaryotes consists of 80s type of ribosome.
There are differences and similarities between prokaryotes and eukaryotes the similarities are?
Similarities between prokaryotes and eukaryotes include both having DNA as genetic material, ribosomes for protein synthesis, and cell membranes to contain their contents. Additionally, they both carry out essential cellular processes such as metabolism and replication.
Eukaryotes and prokaryotes contain endoplasmic reticulum?
Eukaryotic cells have two types of endoplasmic reticulum: Smooth ER (SER); Rough ER (RER).
Protein synthesis in eukaryotes and prokaryotes?
Protein synthesis occurs in cellular structures called ribosomes , found out-side the nucleus. The process by which genetic information is transferred from the nucleus to the ribosomes is called transcription. During transcription, a strand of ribonucleic acid (RNA) is synthesized.
Where does protein synthesis in prokaryotes take place?
In the cytoplasm.
Which structures are common to both prokaryotes and eukaryotes?
Some structures that are common to both prokaryotes and eukaryotes include ribosomes, cytoplasm, cell membrane, and DNA molecules. These structures are essential for basic cellular functions such as protein synthesis, cell structure, and genetic information storage.
In prokaryotes most of the control of protein synthesis occurs at the level of what?
In prokaryotes, most of the control of protein synthesis occurs at the level of transcription initiation. This is achieved through the regulation of RNA polymerase activity, binding of transcription factors, and modulation of promoter sequences. Ribosomes then translate the mRNA into proteins following transcription.
