15. The following is a list of some mRNA codons representing various amino acids. Met-AUG, Pro - CCC, Phe-UUU, Gly - GGC, GGU Leu - CUA, Arg - CGA, CGG Ser - UCU, Asp - AAU Thr-ACC, Val - GUA His - CAC A portion of a strand of DNA contains the following nucleotide sequence: 5'...AAA GAT TAC CAT GGG CCG GCT...3' (a) What is the mRNA sequence transcribed from it? (b) What is the amino acid sequence of this partially-synthesized protein? alor (c) What is the amino acid sequence if, during transcription, the third G on the left in the DNA is read as T? (d) What is the amino acid sequence if, during translation, the first two Us of the mRNA are not read and the fourth C from the left in the mRNA is not read or is deleted?

15. The following is a list of some mRNA codons representing various amino acids. Met-AUG, Pro - CCC, Phe-UUU, Gly - GGC, GGU Leu - CUA, Arg - CGA, CGG Ser - UCU, Asp - AAU Thr-ACC, Val - GUA His - CAC A portion of a strand of DNA contains the following nucleotide sequence: 5'...AAA GAT TAC CAT GGG CCG GCT...3' (a) What is the mRNA sequence transcribed from it? (b) What is the amino acid sequence of this partially-synthesized protein? alor (c) What is the amino acid sequence if, during transcription, the third G on the left in the DNA is read as T? (d) What is the amino acid sequence if, during translation, the first two Us of the mRNA are not read and the fourth C from the left in the mRNA is not read or is deleted?

Name: 15. The following is a list of some mRNA codons representing various
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Description: 15. The following is a list of some mRNA codons representing various amino acids.Met-AUG, Pro - CCC,Phe-UUU, Gly - GGC, GGULeu - CUA, Arg - CGA, CGGSer - UCU, Asp - AAUThr-ACC, Val - GUAHis - CACA portion of a strand of DNA contains the following nu

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter9: Gene Expression And Gene Regulation

Section: Chapter Questions

Problem 18QP: The following is a portion of a protein: met-trp-tyr-arg-gly-pro-thr-Various mutant forms of this...

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A certain mRNA strand has the following nucleotide sequence: 5AUGACGUAUAACUUU3 What is the anticodon for each codon? What is the amino acid sequence of the polypeptide? (Use Figure 13-5 to help answer this question.) Figure 13-5 The genetic code The genetic code specifies all possible combinations of the three bases that compose codons in mRNA. Of the 64 possible codons, 61 specify amino acids (see Figure 3-17 for an explanation of abbreviations). The codon AUG specifies the amino acid methionine and also signals the ribosome to initiate translation (start). Three codonsUAA, UGA, and UAGdo not specify amino acids; they terminate polypeptide synthesis (stop).
If the genetic code uses triplets, how many different amino acids can be coded by a repeating RNA polymer composed of UA and UC (UAUCUAUCUAUC ...)? a. one b. two c. three d. four e. five
Most codons specify an _________ . a. protein c. amino acid b. polypeptide d. mRNA
The genetic code is defined as a series of _______________ in _______________. (a) anticodons; tRNA (b) codons; DNA (c) anticodons; mRNA (d) codons; mRNA (e) codons and anticodons; rRNA
Given the following tRNA anticodon sequence, derive the mRNA and the DNA template strand. Also, write out the amino acid sequence of the protein encoded by this message. tRNA: UAC UCU CGA GGC mRNA: protein: How many hydrogen bonds would be present in the DNA segment?
Given the following mRNA, write the double-stranded DNA segment that served as the template. Indicate both the 5 and the 3 ends of both DNA strands. Also write out the tRNA anticodons and the amino acid sequence of the protein encoded by the mRNA message. DNA: mRNA: 5-CCGCAUGUUCAGUGGGCGUAAACACUGA-3 protein: tRNA:
The following is a portion of a protein: met-trp-tyr-arg-gly-pro-thr-Various mutant forms of this protein have been recovered. Using the normal and mutant sequences, determine the DNA and mRNA sequences that code for this portion of the protein, and explain each of the mutations. a. met-trp- b. met-cys-ile-val-val-leu-gln- c. met-trp-tyr-arg-ser-pro-thr- d. met-trp-tyr-arg-gly-ala-val-ile-ser-pro-thr-
A part of an mRNA molecule with the sequence 5-UGC GCA-3 is being translated by a ribosome. The following activated tRNA molecules are available. tRNA Anticodon Amino Acid 3-GGC-5 Proline 3-CGU-5 Alanine 3-UGC-5 Treonine 3-CCG-5 Glycine 3-ACG-5 Cysteine 3-CGC-5 Alanine Which two of them can bind correctly to the mRNA so that a dipeptide can form? a. cysteinealanine b. prolinecysteine c. glycinecysteine d. alaninealanine e. threonineglycine
26. Using the following DNA strand, write out the mRNA, and then the amino acids. DNA: 3' T- A- C- A- A- G- T- A- C- T- T- G- T- T- T- C- T- T- A- A- A 5' A LIGUULAUGAOLAAAGAAUUL Phe- MRNA: Amino Acids: met Phe- met Asme -LyS- G la- 27. Suppose the two guanosine (G) nucleotides in3 above were changed to two cytosine (C) nucleotides. What is the new amino acid chain? 28. Suppose the two guanosine (G) nucleotides in #3 were removed from the DNA strand. How would this mutation affect the amino acid chain? Write out the new amino acid chain.
12. The following codons and the amino acids they encode is as follows: AUG = Met UUU, UUC = Phe UUA, UUG = Leu UCU, UCC = Ser CCU, CCC = Pro ACU, ACC = Thr %3D %3D The 5' - ACU-UUC-ACU-AUG-UUU-UUA-UCC-UCC-ACU-CCU-UGA-3' MRNA transcript results in a polypeptide. (a) Give the sequence of amino acids in the primary structure of the polypeptide. (3) (b) Give the sequence of nucleotides corresponding to this transcript in: (i) the DNA strand that was read to produce the MRNA (5) (ii) the DNA strand that was NOT read (the coding strand) (5) (c) How many distinct aminoacyl-tRNA synthetases would be used in the synthesis of this polypeptide? (1) (d) Name TWO characteristics of the genetic code that are evident in the data given in the question. (2)
1. Considering the following nucleotide sequence in an mRNA molecule: 5’ AUG UUA CGU AAU GCU GUC GAA UCU AUU UGC UUU ACA UAA 3' a) Write the sequence of the DNA template (antisense) strand from which the mRNA was synthesized. b) Write the sequence of the DNA coding (sense or informational) strand complementary to the template strand. c) Write the sequence of tRNA anticodon that corresponds to the given mRNA molecule. d) Write the amino acid sequence of the peptide synthesized from the given mRNA nucleotide sequence. e) Draw the structure of the pertide fragment made up of the first five (5) amino acids in the given polypeptide.
A gene contains the sequence GGCTAAC. What is the sequence of the MRNA transcribed from this strand of DNA? CCGATTG CCGAUUG GGCTAAC GGCUAAC