The following pattern is observed in a multiple sequence alignment: substitutions are randomly distributed and many would change the amino acid residue, indels are 1 or 2 base pairs, and a relatively large number of the substitutions would introduce stop codons. What are the likely sequences? Exons tRNAs mRNAs Introns

The following pattern is observed in a multiple sequence alignment: substitutions are randomly distributed and many would change the amino acid residue, indels are 1 or 2 base pairs, and a relatively large number of the substitutions would introduce stop codons. What are the likely sequences? Exons tRNAs mRNAs Introns

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter19: Genomes And Proteomes

Section: Chapter Questions

Problem 1ITD: Below is a sequence of 540 bases from a genome. What information would you use to find the...

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Similar questions

What is the start codon? What are the stop codons? Do any of them code for amino acids?
If the genetic code used 4 bases at a time, how many amino acids could be encoded?
State the properties of the WatsonCrick model of DNA in the following categories: a. number of polynucleotide chains b. polarity (running in same direction or opposite directions) c. bases on interior or exterior of molecule d. sugar/phosphate on interior or exterior of molecule e. which bases pair with which f. right- or left-handed helix
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?
How many kilobases of the DNA strand below will code for the protein product?
Consequences of the Wobble Hypothesis Point out why Cricks wobble hypothesis would allow fewer than 61 anticodons to be used to translate the 61 sense codons. How might wobble tend to accelerate the rate of translation?
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-
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
Codon-Anticodon Recognition: Base-Pairing Possibilities (Integrates with Chapter 11.) Draw base-pair structures for (a) a G:C base pair. (b) a C:G base pair. (C) a G:U base pair, and (d) a U:G base pair. Note how these various base pairs differ in the potential hydrogen-bonding patterns they present within the major groove and minor groove of a double-helical nucleic acid.
A beginning genetics student is attempting to complete an assignment to draw a base pair from a DNA molecule. The drawing is incomplete, and the student does not know how to finish. He asks for your advice. The assignment sheet shows that the drawing is to contain three hydrogen bonds, a purine, and a pyrimidine. From your knowledge of the pairing rules and the number of hydrogen bonds in A/T and G/C base pairs, what base pair do you help the student draw?
Define and compare the following types of nucleotide substitutions. Which is likely to cause the most dramatic mutant effect? a. missense mutation b. nonsense mutation c. sense mutation
Provide a brief summary of the Sanger sequencing method.