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How can only 4 bases in rna carry instructions for 20 amino acids?
Wiki User
∙ 11y ago
Transfer RNA comes in sets of three bases. You can arrange four different things into a large number different sets of three. Each combination of bases in Transfer RNA codes for a different amino acid.
Wiki User
∙ 16y ago
Wiki User
∙ 11y agoIt takes 3 bases to make a codon. ACGT or ACGU in mRNA.
So there are 64 possible combinations of codons to code for 20 amino acids.
Most amino acids, therefore have several codons and a few have only one or two. There is a start and stop codon that controls the length of the chain of amino acids to produce the appropriate protein.
Wiki User
∙ 12y agoConsider how only 26 letters of the alphabet can spell all the millions of words of the english language.
Wiki User
∙ 14y agoIt doesn't carry the amino acids, it carries the code for them, the codons.
Wiki User
∙ 11y agoThere are 64 different combinations of 3 base pairs....way more than 20 amino acids. Some amino acids have several codes, some have only one. There are also start and stop sequences.
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How can only four bases in RNA carry instructions for 20 different amino acids?
The properties of proteins are determined by the order in which different amino acids are joined together to produce polypeptides. The genetic code is read three letters at a time, so that each "word" of the coded message is three bases long.
Which molecules match mRNA codons to specific amino acids?
Starting from the translation start codon in the mRNA molecule, each three bases corresponds to a single amino acid, until you reach the stop signal. Some amino acids have more that one triplet that codes for them (redundancy). Some parts of the mRNA molecule are untranslated and therefore do not correspond to amino acids.
Carries amino acids to the ribosome during protein synthesis?
Transfer RNA (tRNA) carries amino acids from the cell cytoplasm to the ribosomes during the translation phase of protein synthesis. tRNA molecules have an amino acid at one end, and an anticodon at the opposite end, which is specific for a particular amino acid and pairs with its complementary mRNA codon at the ribosome.
What is the purpose of a transfer RNA?
To carry the next amino acid to be added to a growing polypeptide chain during translation process that takes place in the ribosomes.
Why are there so many kinds of protein?
We should note that enzymes are proteineous but not all enzymes are protein,actually it depends in the sequence of the amino acid polymerization,for instance in the change of valine of normal haemoglobin to glutamine of sickle haemoglobine and some protein constitute its monomers alone while others constitute another chemical component apart from their monomers.
What carry instructions for making proteins?
mRNA
How can only four bases in RNA carry instructions for 20 different amino acids?
The properties of proteins are determined by the order in which different amino acids are joined together to produce polypeptides. The genetic code is read three letters at a time, so that each "word" of the coded message is three bases long.
What is the function of the messenger rna?
The function of messenger RNA is to carry copies of the instructions for assembling amino acids into proteins to the rest of the cell or, more specifically, to the ribosomes.
What Cells carry amino acids?
All Cells carry, contain and control all sorts of proteins that are comprised completely from Amino acids.
What does tRNA carry from the cytoplasm to the ribosomes-?
Transfer RNA brings or transfers amino acids to the ribosome that correspond to each three-nucleotide codon of rRNA. The amino acids then can be joined together and processed to make polypeptides and proteins.
Does DNA code carry instructions the correct sequence of nucleic acids in a protein?
Yes, DNA carries the instructions for the correct sequence of nucleic acids in a protein. These instructions are encoded in the DNA molecule as a specific sequence of nucleotide bases (adenine, thymine, cytosine, and guanine). Through a process called transcription, the DNA sequence is transcribed into a messenger RNA (mRNA) molecule, which is then translated into a specific sequence of amino acids to form a protein.
What is the RNA's messenger function?
The function of messenger RNA is to carry copies of the instructions for assembling amino acids into proteins to the rest of the cell or, more specifically, to the ribosomes.
What carries amino acids?
All Cells carry, contain and control all sorts of proteins that are comprised completely from Amino acids.
How can only four bases in rna carry intructions for 20 different amino acids?
It takes a set of three RNA bases to code for one amino acid. Since there are 4 different bases in RNA, there are 4 x 4 x 4 = 64 possible combinations. This is many more combinations than is necessary to code for 20 amino acids. The reason that there are more than 20 is that some combinations code for the same amino acid.
A certain protein is made up of 100 amino acids What is the smallest number of bases in the messenger RNA molecule that is needed to carry the code for the synthesis of this protein?
for mRNA, it takes 3 bases (A codon) to signal that a specific amino acid should be used. In this case you would need 100x3 = 300 bases.
How do you find the amino acid?
Amino acids make up proteins. During translation of protein synthesis, transfer RNA molecules carry amino acids from the cytoplasm to the ribosome to be inserted into the protein being made.
Do amino acids bind directly to the mRNA?
mRNA connects with the subunits of the ribosome. Each codon is read specifically and a matching anticodon brought by a tRNA is transferred. Each matched triplet adds amino acids to the polypeptide chain.
