EP HUMAN BIOLOGY-MODIFIED MASTERING
8th Edition
ISBN: 9780134326436
Author: Johnson
Publisher: PEARSON CO
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Chapter 17, Problem 14TY
Summary Introduction
Introduction:
Transcription is the process in which single-stranded ribonucleic acid (RNA) is produced from double-stranded deoxyribonucleic acid (DNA). This process takes place inside the nucleus. The DNA is first replicated and then it undergoes a process wherein RNA is formed and finally this RNA is converted into proteins via the translation process.
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The _______________ catalyzes the excision of introns from pre-mRNA. (a) ribosome (b) spliceosome (c) RNA polymerase enzyme (d) aminoacyl–tRNA synthetase enzyme (e) reverse transcriptase enzyme
All of the following will move from the inside of the nucleus to the cytoplasm through a nuclear pore EXCEPT:
A.
rRNA
B.
mature mRNA
C.
Small ribosome subunits
D.
Chromosomes
Can you please help answer the question of which image represents the exon and intron?
Chapter 17 Solutions
EP HUMAN BIOLOGY-MODIFIED MASTERING
Ch. 17 - How do you feel about the creation and then...Ch. 17 - How far should we go–to what lengths and at what...Ch. 17 - Describe how DNA is replicated before cell...Ch. 17 -
2. Compare and contrast the processes of...Ch. 17 - Explain what mutations are and the role of DNA...Ch. 17 - Name the four phases of mitosis and describe...Ch. 17 -
5. Explain why only one large egg is formed...Ch. 17 - Describe what is meant by selective gene...Ch. 17 - Explain how factors present in the environment can...Ch. 17 - Describe how ribosomes contribute to the formation...
Ch. 17 - Prob. 9CRCh. 17 - Prob. 10CRCh. 17 - What would be the outcome if a cell completed...Ch. 17 - Prob. 2TYCh. 17 - Prob. 3TYCh. 17 - Prob. 4TYCh. 17 - Which of the following are listed in order from...Ch. 17 - Prob. 6TYCh. 17 - Which is likely to be the shortest chain of...Ch. 17 - How many different amino acids could be encoded if...Ch. 17 - Prob. 9TYCh. 17 - Why do cells within an organism differentiate,...Ch. 17 - Which method of cloning is most similar to the way...Ch. 17 - Prob. 12TYCh. 17 - Prob. 13TYCh. 17 - Prob. 14TYCh. 17 -
15. How does the production of sperm differ from...Ch. 17 - Prob. 1AWKCh. 17 - Prob. 2AWKCh. 17 - Prob. 3AWKCh. 17 - Prob. 4AWKCh. 17 - Mitochondria contain their own DNA that is...Ch. 17 - Bacteria can reproduce by simple cell division....
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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
- Select the description of an intron. (If possible, please explain why it is that answer) a.) sequence of adenine nucleotides added onto the end of pre‑mRNA b.) modified form of a guanine nucleotide added onto the end of pre‑mRNA c.) coding portion of a DNA sequence that is present in mature mRNA d.) noncoding portion of a DNA sequence that is removed from pre‑mRNAarrow_forwardThe process by which the non-coding sequences (= _______ ) of eukaryotic genes are removed is referred to as ________ . Question 14 options: exons … recombination exons … splicing introns … deletion introns … splicing transposons … recombinationarrow_forwardThe structural unit of the eukaryotic genome is called a(n): a. nucleosome b. histone c. chromatin d. exonarrow_forward
- Which of the following are steps of transcription? Select all that apply. a.RNA polymerase assembles a strand of mRNA complementary to the noncoding strand of DNA. b.RNA polymerase binds to a gene’s promoter. c.RNA polymerase assembles a strand of mRNA complementary to the coding strand of DNA. d.RNA polymerase moves over the gene and unzips the double helix to form a “transcription bubble.”arrow_forwardA protein is normally secreted from the cell. A team of scientists attempts to redirect this protein to the inside of the nucleus by mutating the sequence of the gene. Unfortunately, after this mutation, the protein is no longer secreted, but it is now localized to the cytosol and not the nucleus. Briefly answer the two questions below: a. Identify the sequence that was mutated by the scientists and explain your reasoning. b. What additional mutation must be made by the scientists to redirect this protein to the nucleus? Explain your reasoningarrow_forwardTranscription is..... dependent..... synthesis. Rna:dna Rna:protein dna/rna Dna/dnaarrow_forward
- For each of the following, identify the type of RNA involved (mRNA, rRNA, or tRNA). a. Transports the correct amino acid to the ribosome, using the information encoded in the mRNA. b. Is a major component of ribosomes. c. Specifies the order of amino acids in a protein, using a series of three-base codons, where different amino acids are specified by particular codons. d. Contains a three-base anticodon that pairs with a complementary codon revealed in the mRNA. e. Assists in making the bonds that link amino acids together to make a protein.arrow_forwardYou are studying a human cancer cell line and you notice that you see the normal amount of RNA but the protein concentration is extremely low. When you investigate more closely you notice that the MRNA is properly processed and in the cytosol but you detect very little protein. When you sequence the mRNA you see no mutations. a) When you sequence the ribosomal RNA associated with the small subunit you notice two transition mutations. What function of the ribosome might be disrupted by these mutations? b) You also sequence the DNA encoding the large ribosomal subunit and notice one substitution mutation. What function of the ribosome might be disrupted by this mutation? c) Suggest one experiment that you might do to determine if the mutations in (a) or the mutation in (b) is the cause of low protein production.arrow_forwardWhich of the following is/are not necessary for transcription to occur? A. Promoter region B. Terminator region C. Start codon D. Stop codonarrow_forward
- A geneticist induces a mutation in eukaryote cells. The mutation results in an inability to form the poly(A) tail during processing of pre-mRNA. What does this mean for the mature mRNA and what will be the effect on these cells? Possible Answers: A. The mRNA will be spliced, but will not have a 5' cap. B. The mRNA will likely be degraded. C. The mRNA will not be cleaved. D. The mRNA will have too many Gs and Cs.arrow_forwardAll of the following regarding ribosomes are true EXCEPT: A. Ribosomes are comprised of protein and RNA. B. Ribosomes coordinate with initiation and elongation factors to regulate translation. C. Ribosomes bind transcripts in their promoters. D. Prokaryotic ribosomes are comprised of a large and a small subunit. E. Ribosomes in eukaryotic cells bind to complete transcripts.arrow_forwardYou genetically modified a bacterium so it can only produce ribosomes from a plant. The most immediate effect on this bacterium would be; A. Nothing. It would produce proteins as normal because the genetic code is essentially universal B. It may not be able to produce proteins C. It would not be able to transcribe mRNA D. It would not be able to remove introns Select the best option above and explain why you chose that answer. Your explanation should include a description of the role of the ribosome in the cell and how it interacts with mRNA and tRNA. As well as explanations for why the other options are not correct.arrow_forward
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