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How many amino acids are coded for in the segment 5' atcagcgctggc 3'?
To determine how many amino acids are coded for in the segment 5' atcagcgctggc 3', we first need to convert the DNA sequence into its corresponding mRNA sequence. The mRNA sequence would be 5' UAG UCG CUG CCG 3'. Each amino acid is coded for by a codon, which consists of three nucleotides. Therefore, this mRNA sequence contains four codons, coding for four amino acids.
How many mRNA molecule made?
he old dogma of molecular biology held that for every gene there was one protein (and therefore one mRNA). This is not the case, as we now know. There are many different mRNAs that can arise from a single gene, depending on splicing, promoting and enhancing regions etc. The answer to the first question is 'it depends'-on the gene, the cell conditions etc. Introns were thought of as junk DNA, but they now appear to play at least a minor regulatory role in many cases, as well as influencing splicing etc. Amino acids can be coded for by a number of different codons (sets of 3 nucleotides, the unit with which the DNA sequence is read and interpreted) due to the DNA sequence redundancy. This means that many of the amino acids found in a chain may have been coded by any of (up to 6) different codon sequences, so you can't tell exactly the DNA sequence just from the amino acid sequence. (e.g. Argenine is coded by CGI, CGC, CGA and CGG, which means you can't tell which sequence on the DNA coded for the argenine, it could be any of the four possible choices)
What is the maximum number of amino acids that could be coded for by a sextion of mrna with the sequence guucagaacugu?
A codon is three bases long - so this section of mRNA would have 4 codons; UGA-UUC-AGU-AAC.Each codon relates to a specific amino acid (but several codons can code for the same amino acid, for example both UUU and UUC code for the amino acid Phenylalanine).Normally if you have four codons, such as this section of mRNA, the maximum number of amino acids you could have would be four. However, the first codon in this section, UGA, is actually a STOP codon. This means that when the ribosome reaches this codon, no further amino acids will be joined.This means that no amino acids could be coded for with this section of mRNA. (If the order of the codons was reversed, making the STOP codon last, then the answer would be three).
Is a condon a sequence of four nitrogenous base?
No, a codon is not a sequence of four nitrogenous bases; it is a sequence of three nitrogenous bases. Codons are found in messenger RNA (mRNA) and specify particular amino acids during protein synthesis. Each codon corresponds to one of the 20 amino acids or signals a stop in the translation process.
How does the cell know which proteins to make from the DNA code?
Firstly, DNA is transcripted to mRNA, which is then translated by ribosomes into your polypeptide. Each set of 3 bases on the mRNA (codon) codes for a particular amino acid. However, there can be up to four codons, coding for a single amino acid. ie GCU, GCC, GCA and GCG all code for Alanine. Therefore, if you know the amino acid sequence, you can work backwards to mRNA and then to DNA, but you wouldn't be very accurate as you'd need to guess the codons.
Is DNA a code for the sequence of amino acids in a protein?
The actual process is pretty complicated. If you're just looking for a simple overview, the answer is that any given sequence of three bases codes for a specific amino acid. Since there are four (basically...) bases, that means there are 4x4x4 = 64 possible combinations. That's more than the number of biologically important amino acids by quite a bit, so it's actually normal for more than one sequence to code for the same amino acid. Also, certain particular combinations are used for signalling (start here, stop here) rather than for amino acid selection.
Excluding the stop sequence how many nucleotides are necessary to code for a polypeptide that is 100 amino acids long?
300 nucleotides are needed to code for a polypeptide that is 100 amino acids long, because each amino acid is coded for by a sequence of 3 nucleotides (codon), and there are 100 amino acids in the polypeptide.
How many mRNA molecule made?
he old dogma of molecular biology held that for every gene there was one protein (and therefore one mRNA). This is not the case, as we now know. There are many different mRNAs that can arise from a single gene, depending on splicing, promoting and enhancing regions etc. The answer to the first question is 'it depends'-on the gene, the cell conditions etc. Introns were thought of as junk DNA, but they now appear to play at least a minor regulatory role in many cases, as well as influencing splicing etc. Amino acids can be coded for by a number of different codons (sets of 3 nucleotides, the unit with which the DNA sequence is read and interpreted) due to the DNA sequence redundancy. This means that many of the amino acids found in a chain may have been coded by any of (up to 6) different codon sequences, so you can't tell exactly the DNA sequence just from the amino acid sequence. (e.g. Argenine is coded by CGI, CGC, CGA and CGG, which means you can't tell which sequence on the DNA coded for the argenine, it could be any of the four possible choices)
What is the maximum number of amino acids that could be coded for by a sextion of mrna with the sequence guucagaacugu?
A codon is three bases long - so this section of mRNA would have 4 codons; UGA-UUC-AGU-AAC.Each codon relates to a specific amino acid (but several codons can code for the same amino acid, for example both UUU and UUC code for the amino acid Phenylalanine).Normally if you have four codons, such as this section of mRNA, the maximum number of amino acids you could have would be four. However, the first codon in this section, UGA, is actually a STOP codon. This means that when the ribosome reaches this codon, no further amino acids will be joined.This means that no amino acids could be coded for with this section of mRNA. (If the order of the codons was reversed, making the STOP codon last, then the answer would be three).
How does the DNA nucleotide sequence determine the amino acid sequence?
DNA sequence undergoes transcription, then translation process in order to determine and subsequently produce the amino acid sequence. The four bases specifically A,C,G, & T are the main coding sequence of a DNA. Because each coding sequence is unique, the resulting amino acid sequence is also unique as well.
Interpret the genetic code to determine the amino acid coded for by the condon ccu?
The link below includes a table of codons and their respective amino acids. You can use this to determine the amino acid coded by any three nucleic acid bases. Read down, then across, then find the one you want from that block of four. In the case of CCU, the amino acid is proline.
Is a condon a sequence of four nitrogenous base?
No, a codon is not a sequence of four nitrogenous bases; it is a sequence of three nitrogenous bases. Codons are found in messenger RNA (mRNA) and specify particular amino acids during protein synthesis. Each codon corresponds to one of the 20 amino acids or signals a stop in the translation process.
How is genetic information coded in DNA?
DNA contains the code for synthesizing proteins. DNA transcribes itself into MRNA (memory RNA), which then leaves the nucleus and translates into TRNA (Transfer RNA) which goes around the cell to retrive the amino acids that were coded into the DNA. It comes back to the MRNA which is now attached to a ribosome and proteins are created.
What are the first four terms of the sequence an 4n -1?
5
How does the cell know which proteins to make from the DNA code?
Firstly, DNA is transcripted to mRNA, which is then translated by ribosomes into your polypeptide. Each set of 3 bases on the mRNA (codon) codes for a particular amino acid. However, there can be up to four codons, coding for a single amino acid. ie GCU, GCC, GCA and GCG all code for Alanine. Therefore, if you know the amino acid sequence, you can work backwards to mRNA and then to DNA, but you wouldn't be very accurate as you'd need to guess the codons.
What does the order of bases in a gene determine?
The order determines the amino acid sequence in proteins. Think of nucleotide as a building block of DNA. Nucleotides are made of a sugar, a phosphate group and one of four bases (adenine, Guanine, Thymine and Cytosine).
What are the first four terms of a sequence when the nth term equals 3 to the power of n and what term number is 729 in the sequence?
The first four terms are 3 9 27 81 and 729 is the 6th term.
