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Name: Define the following terms: genetic code, codon, and anticodon. What i
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Description: Define the following terms: genetic code, codon, and anticodon. What is the relationship among the bases in DNA, the codons of mRNA, and the anticodons of tRNA?

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Biology

Define the following terms: genetic code, codon, and anticodon. What is the relationship among the bases in DNA, the codons of mRNA, and the anticodons of tRNA?

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter13: Gene Expression

Section13.4: Translation

Problem 3C: A certain mRNA strand has the following nucleotide sequence: 5AUGACGUAUAACUUU3 What is the anticodon...

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which statement about genetic code is not true? A) mRNA is read 3 bases at a time, which are called codons. B) There is one initiator codon that codes for an amino acid. C) Each amino acid is coded for by only one codon. D) There are 3 termination codons that do not code for amino acids. E) Each codon is specific for only one amino acid. An anion has an equilibrium potential of -40 mV. What direction are the chemical and electrical forces acting on the anion at the resting membrane potential (-70 mV)? A) Both the chemical and electrical forces are directed out of the cell. B) The chemical force is directed out of the cell and the electrical force is directed into the cell. C) The chemical force is directed into the cell and the electrical force is directed out of the cell. D) There is insufficient information to answer this question. E) Both the chemical and electrical forces are directed into the cell.
Why may tRNA be considered the “interpreter” of the genetic code?
Which of the following is an example of the degeneracy of the genetic code?Group of answer choices a) each codon specifies more than one amino acid b) the genetic code is not degenerate c) an amino acid can have more than one codon d) None of the above
How many codons are needed to specify one amino acid?
If DNA codes for mRNA and mRNA codes for protein, then how can the same DNA sequence generate different proteins? What are the 3 tRNA sites on the small ribosomal subunit (just abbreviations)? What is the order of tRNA entrance and exit through the ribosome?
In how many cases in the genetic code would it NOT be possible to know the amino acid specified by a codon if only the first two nucleotides of the codon are known?
Describe the specificity between the amino acid carried by a tRNA and a codon in mRNA.
Mention any four important characteristics of genetic code.
Amino acids are translated from mRNA codons and each codon is made up of three nucleotide bases. How might an extra single base INSERTION into the second codon of a coding sequence of a gene affect the amino acid sequence of the protein encoded by the gene? (Hint: You may want to write out a made-up example of an insertion like the one described above) The entire amino acid sequence would shift and be changed. O A single amino acid would change only. O The mutation may have no effect on the amino acid sequence. O A single extra amino acid would be present in the protein. O All of the above are possible outcomes.
Which of the following best describes a stop codon? A) They are codons that indicate termination of protein synthesis. B) They are codons that are extra in the genetic code and are not used. C) They are codons that indicate when to create new peptide bonds. D) They are codons that signal when the RNA strand is done being read. E) They are codons that indicate when to begin folding the polypeptide.
A DNA strand consists of any sequence of four kinds of nucleotides. Suppose there were only 14 different amino acids instead of 20. Which of the following statements would be correct descriptions of the minimal number of nucleotides necessary to create a genetic code? a) 1 b)2, provided that chain termination does not require a special codon c) 3, provided that chain termination does require a special codon d)2, no matter how chain termination is accomplished e) Both b and c
A gene contains 141 codons. How many nucleotides are present in the gene’s coding sequence? How many amino acids are expected to be present in the polypeptide encoded by this gene?