Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 9, Problem 9QP
What are the three modifications made to pre-mRNA molecules before they become mature mRNAs, are transported from the nucleus to the cytoplasm, and become ready to be used in protein synthesis? What is the function of each modification?
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What are the three modifications made to pre-mRNA molecules before they become mature mRNAs that are ready to be used in protein synthesis? What is the function of each modification?
How is the mRNA strand altered during mRNA processing (the intermediate step between transcription and translation)? How are these modifications helpful?
After the intron (which is in a lariat configuration) is released during pre-mRNA splicing, a brief moment occurs before the two exons are connected to each other. Which snRNP(s) hold(s) the exons in place so they can be covalently connected to each other?
Chapter 9 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 9.6 - Antibiotics and Protein Synthesis Antibiotics are...Ch. 9.6 - Antibiotics and Protein Synthesis Antibiotics are...Ch. 9 - There have been recurring cases of mad-cow disease...Ch. 9 - There have been recurring cases of mad-cow disease...Ch. 9 - There have been recurring cases of mad-cow disease...Ch. 9 - The Link Between Genes and proteins The genetic...Ch. 9 - Define replication, transcription, and...Ch. 9 - If the genetic code used 4 bases at a time, how...Ch. 9 - If the genetic code uses triplets, how many...Ch. 9 - What is the start codon? What are the stop codons?...
Ch. 9 - Is an entire chromosome made into an mRNA during...Ch. 9 - The promoter and terminator regions of genes are...Ch. 9 - The following segment of DNA codes for a protein....Ch. 9 - What are the three modifications made to pre-mRNA...Ch. 9 - The pre-mRNA transcript and protein made by...Ch. 9 - Briefly describe the function of the following in...Ch. 9 - Prob. 12QPCh. 9 - Determine the percent of the following gene that...Ch. 9 - How many kilobases of the DNA strand below will...Ch. 9 - Prob. 15QPCh. 9 - Given the following tRNA anticodon sequence,...Ch. 9 - Given the following mRNA, write the...Ch. 9 - The following is a portion of a protein:...Ch. 9 - Below is the structure of glycine. Draw a...Ch. 9 - Indicate in which category, transcription or...Ch. 9 - Prob. 21QPCh. 9 - Polypeptide folding is often mediated by other...Ch. 9 - Do mutations in DNA alter proteins all the time?Ch. 9 - a. Can a mutation change a proteins tertiary...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The asterisk (*) in the diagram below indicates a single base mutation in the 5' splice site of the second intron of a eukaryotic gene. Due to this mutation, the second intron is now not ‘spliced out’ during the splicing process. What are the most likely consequences of this mutation with respect to the size of the pre-mRNA and the size of the mature mRNA? a. The pre-mRNA will be longer and the mature mRNA will be longer. b. The pre-mRNA will be longer and the size of the mature mRNA will not be affected c. The size of the pre-mRNA will not be affected and the mature mRNA will be longer d. The size of the pre-mRNA will not be affected and the size of the mature mRNA will not be affectedarrow_forwardWhat is mRNA converted into during the process of translation? Where in the cell does this take place?arrow_forwardwhat is it called when an mRNA is edited and where does it happen?arrow_forward
- Where in eukaryotic cells does mRNA synthesis occur? To where do these molecules migrate?arrow_forwardA single template strand of a DNA molecule is represented by 3’atgtaccatgcgcaaatttaaaggccc5’. a) Using the same strand above as a template, write the pre-mRNA transcript. b) List the molecules that must be present for DNA to be transcribed. Briefly describe their function. c) What are three modifications that happen to pre-mRNA before it becomes mature mRNAarrow_forwardHow do we know that mRNA exists and serves as an intermediate between information encoded in DNA and its concomitant gene product?arrow_forward
- Eukaryotic mRNA has a significantly longer half life than its prokaryotic counterpart. How is this accomplished in eukaryotes? What processes tend to degrade mRNA molecules in both eukaryotes and prokaryotes, and why are these processes needed?arrow_forwardWhich statement is false: A) Each type of protein ( ex: hemoglobin vs trypsionngen) varies in the length and amino acid sequence of its peptide B) After the rpocess of transcription is complete, the mRNA that is produced will continue being tranlsated by ribosomes for the rest of the cells life. mRNA never breaks down C) A ribosome will bind to an mRNA and will translate the sequence by reading one codon at a time and adding one amino acid to the peptide chain. It will stop the translation once it encounters a stop codon D) The gene for a protein provides the information on the legth of the peptide, along w the amino acid sequence so the protein can be synthesized by a ribosome E) Once mRNA has left the nucleus, ribosomes will bind to it and will follow the instructions in its sequence to make the new protienarrow_forwardWhich of the followings indicate the order of procaryotic mRNA degreadation? cleavage of the triphosphate 5′ terminus to yield a monophosphate- 3′ to 5′exonuclease digestion- The endonucleolytic cleavages occur in a 5′ to 3′ direction on the mRNA following the passage of the last ribosme cleavage of the triphosphate 5′ terminus to yield a monophosphate- The endonucleolytic cleavages occur in a 5′ to 3′ direction on the mRNA following the passage of the last ribosme- 3′ to 5′exonuclease digestion The endonucleolytic cleavages occur in a 5′ to 3′ direction on the mRNA following the passage of the last ribosme- cleavage of the triphosphate 5′ terminus to yield a monophosphate- 3′ to 5′exonuclease digestionarrow_forward
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