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UAG is a stop codon. What might happen if the uracil in this codon was changed to cytosine?
Wiki User
∙ 15y ago
The new codon would code for glutamine. Translation would continue until the ribosome encountered another stop codon or ran out of messenger RNA to translate.
Explanation
UAG is an RNA codon. If the uracil (U) in the codon were changed to cytosine (C), the codon would be CAG, which codes for the amino acid glutamine.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agothe substitution has little effect because UGU and UGC both translate into the same amino acid--cysteine
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How many bases does RNA have?
3 nitrogenous bases form one "word" of a mRNA's message.
Why is the anticodon AGA complementary to the codon UCU?
The only base-pairs that are possible are: Adenine - Uracil (for RNA, since the question refers to codon and anticodon) Guanine - Cytosine The reason for this particular base pairing is that it is the only possible combination for the hydrogen bonds between the bases to be effectively made.
What group of three nitrogenous bases in DNA or mRNA that code for one amino acid?
There are 4 nitrogenous bases characteristic of mRNA. Adenine, Cytosine, Uracil, and Guanine.
What is the sequence of three bases called in RNA?
adenine (A) forms a base pair with thymine (T)guanine (G) forms a base pair with cytosine (C)In RNA, thymine is replaced by uracil (U)
What base is always opposite guanine?
In a regular watson-crick double helix base pairing DNA, guanine always pairs opposite cytosine. However this rule holds good only for double helical DNA, as, it is seen in tRNA that guanine (in the anticodon) pairs with cytosine as well as uracil of the corresponding codon in mRNA.
What does the amino acid ucg stand for?
The codon UGC refers to Cysteine, which consists of Uracil, Glycine and Cytosine in sequence
How many bases does RNA have?
3 nitrogenous bases form one "word" of a mRNA's message.
Why is the anticodon AGA complementary to the codon UCU?
The only base-pairs that are possible are: Adenine - Uracil (for RNA, since the question refers to codon and anticodon) Guanine - Cytosine The reason for this particular base pairing is that it is the only possible combination for the hydrogen bonds between the bases to be effectively made.
What group of three nitrogenous bases in DNA or mRNA that code for one amino acid?
There are 4 nitrogenous bases characteristic of mRNA. Adenine, Cytosine, Uracil, and Guanine.
What is the sequence of three bases called in RNA?
adenine (A) forms a base pair with thymine (T)guanine (G) forms a base pair with cytosine (C)In RNA, thymine is replaced by uracil (U)
What base is always opposite guanine?
In a regular watson-crick double helix base pairing DNA, guanine always pairs opposite cytosine. However this rule holds good only for double helical DNA, as, it is seen in tRNA that guanine (in the anticodon) pairs with cytosine as well as uracil of the corresponding codon in mRNA.
What are the best nucleotide triplets that best represent a codon?
The best nucleotide triplets that represent a codon are Adenosine, Cytosine, Guanine, and Uracil (A, C, G, and U). These nucleotides form RNA molecules, which are used during protein synthesis to encode the sequence of amino acids in a protein. Each triplet of nucleotides, or codon, corresponds to a specific amino acid or a signal to start or stop protein synthesis.
What kind of bases are adenine thymine cytosine guanine?
THEY ARE ALL NITROGENOUS BASES IN THE DNA adenine and guanine are purines thymine and cytosine are pyrimidines
What are 3 bases on tRNA called?
I'm not completely sure but I think it's uracine, glycine, cytosine, and adenine. But that's 4
What is a codon and what does each codon stand for?
A codon is made of RNA that is formed from organic molecules that mimic a segment of DNA in order to synthesize a protein. The codon is a set of nucleotide units used to code for different amino acids. The nucleotides in DNA are adenine, guanine, cytosine, and thymine, usually represented by A, G, T, and C. When translated into RNA, that forms codons, thymine is replaced with uracil in a RNA chain. In sets of RNA are sets of many codons. A codon is a set of three nucleotides in RNA that are translated into amino acids to by a ribosome. These sets of amino acids are the building blocks to forming different proteins.
Which rna base pairs with which DNA strand?
There are four nucleotide bases that pair up to form the "ladder rungs" that we see on a DNA molecule. These are adenine, thymine, guanine, and cytosine. Adenine matches with thymine, and guanine matches with cytosine. The opposite of each case also occurs (thymine will bind to adenine, and cytosine to guanine).
What is a codon made of?
A codon is made up of a sequence of three nucleotides. In DNA, a nucleotide contains the sugar deoxyribose, a phosphate group, and one of four nitrogen bases; adenine, thymine, guanine, and cytosine. In RNA, a nucleotide contains the sugar ribose, a phosphate group, and one of four nitrogen bases; adenine, uracil, guanine, and cytosine. Each codon represents an amino acid, or a start or stop signal.
