What would be the effect on reading frame and gene function if: Two bases were inserted into the middle of an mRNA? Three bases were inserted into the middle of an mRNA? One base was inserted into one codon? Two codons were subtracted from the first codon?

What would be the effect on reading frame and gene function if: Two bases were inserted into the middle of an mRNA? Three bases were inserted into the middle of an mRNA? One base was inserted into one codon? Two codons were subtracted from the first codon?

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Description: What would be the effect on reading frame and gene function if:Two bases were inserted into the middle of an mRNA?Three bases were inserted into the middle of an mRNA?One base was inserted into one codon?Two codons were subtracted from the first codo

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 3QP: If the genetic code used 4 bases at a time, how many amino acids could be encoded?

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If the genetic code used 4 bases at a time, how many amino acids could be encoded?
What would be the effect on reading frame and gene function if:Answer each Two bases were inserted into the middle of an mRNA? Three bases were inserted into the middle of an mRNA? One base was inserted into one codon? Two codons were subtracted from the first codon?
How would you choose where to begin your reading of a sequence in mRNA? Which rule governing the use of the genetic code did you use?
Translation is the process by which the sets of 3 bases (codons) of the mRNA are read to specify the sequence of amino acids for the protein to be produced. Using the genetic code data provided, find the sequence of amino acids that would correspond to the MRNA codons shown. Codons 1 3 MRNA A UGUGGAUC CGAG UCACG Amino acid SECOND LETTER A U UUU Phenylalanine UCU UCC Serine (S) UAU Tyrosine (Y) UAC TAA stop codon UAG stop codon UGU Cysteine (C) UGC TỮA Leucine (L) TGA stop codon UGG Tryptophan (W) F UCA UUG UCG I H CUU CCU CAU Histidine (H) R CGU CỨC Leucine (L) CỦA CCC Proline (P) ССА CCG CGC Arginine (R) CGA CAC "CAA Glutamine CAG (Q CUG CGG G D A AUU L AUC Isoleucine (1) AAU Asparagine AAC (N) ÄÄÄ Lysine (K) AGU Senine (S) ACU ACC Threonine ACA (T) AGC E AUA AGA Arginine (R) E ACG T AUG stat codon (M) AAG AGG TG GƯỮ GAU Apartic acid GAC (D) "GAÄ Glutamic acid GCU GGU GUC Valine (V) GUA GGC Glycine (0) GCC Alanine (A) CE GCA GGA R GUG GCG GGG GAG (E) The start codonencodes the amino…
A segment of mRNA produced by the normal order of DNA nucleotides and the corresponding amino acid chain are given below: mRNA segment: GCC UAC AAU GCG Amino acid chain: Ala-Tyr-Asn-Ala Knowing that insertion mutations shift the triplets by one base, if an insertion mutation adds a U to the beginning of that mRNA segment, what will be the new triplet/codon grouping and the new amino acid chain? Group of answer choices a. U GCC UAC AAU GCG; Ala-Tyr-Asn-Ala b. UCC UAC AAU GCG; Ser-Leu-Gln-Cys c. UGC CUA CAA UGC G; Cys-Leu-Gln-Cys d. UGC CUA CAA UGC G; Ala-Tyr-Asn-Ala e. UGCC UAC AAU GCG; Cys-Tyr-Asn-Ala
a) What is a mutation in molecular terms? b) a mutation deletes a base in the genomic DNA discuss how that will affect the reading frame and expression product production. Using the following list of codons describe, using diagrams etc., how information stored in the DNA is translated into a peptide. Be sure to discuss all steps. In other words, use a diagram and give me sequences, transcription and translation steps. Show the sequences of the sense and the other DNA strand, the mRNA and the tRNA’s. UUU -phenylalanine UCU -serine AUG –initiation/methionine CUU -leucine ACU -threonine GUU -valine UAA -Termination
The following is a portion of an mRNA sequence: 3’ –AUCGUCAUGCAGA-5’ a)During transcription, was the adenine at the left-hand side of the sequence the first or the last nucleotide used to build the portion of the mRNA shown? Explain how you know. b)Write out the sequence and polarity of the DNA duplex that encodes this mRNA segment. Label the template and coding DNA strands. c)Identify the direction in which the promoter region for this gene will be located.
How can you identify the start codon in the mRNA sequence ?
Consider this nucleotide sequence of DNA strand in the image provided. If this strand is the sense strand, Give the correct nucleotide sequence of the RNA produced after transcription. If the RNA formed in #1 is already a functional mRNA and will be used to synthesize proteins, how many codons are present here that will actually code for amino acids? What is the sequence of the stop codon in this mRNA? What is the sequence of the 3rd codon in this mRNA? What is the sequence of the last codon in this mRNA that actually code for an amino acid?
Transcribe the DNA strand given above to write the sequence of the mRNA strand in the 5’ to 3’ direction. Use the table and write the sequence of the resulting peptide. Is it possible for a codon to code for another amino acid? What will be the effect if a mutation changes the codon UAU to UAA? What is a reading frame? If you are given a nucleotide sequence, how would you find Open Reading Frames? DISCUSS the reason why there are leading and lagging strands in replication?
Codons 24 to 66 represent an intron. At what point in the process of protein synthesis are introns removed? What is the name of the enzyme responsible for removing them?
A gene contains the sequence GGCTAAC. What is the sequence of the MRNA transcribed from this strand of DNA? CCGATTG CCGAUUG GGCTAAC GGCUAAC