Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Chapter 17, Problem 6TY
Summary Introduction
Introduction:
A gene is a functional unit of the DNA (deoxyribonucleic acid), which codes for one or more proteins. It is transcribed into mRNA (messenger RNA) through a process called transcription. This process requires an enzyme called RNA (ribonucleic acid) polymerase. This enzyme recognizes a sequence in the gene known as the promoter region. This signals it to begin transcription and it synthesizes mRNA from that gene. This mRNA is then translated into the protein that mRNA codes for using translation machinery that is ribosomes, tRNA (transfer RNA) molecules, and enzymes. The mRNA is held in place by the ribosome. Codons in the mRNA are recognized by tRNA molecules, which bring in the corresponding amino acids and peptide bonds are formed between these resulting in the production of a protein.
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Which statement about transposons is INCORRECT?
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Chapter 17 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
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
- Why can the transcriptome not be used to predict the proteome with complete accuracy? a. It cannot be sequenced like the genome can be. b. The transcriptome is too dynamic to be used to make predictions. c. Not all genes are transcribed. d. Many transcripts are alternatively spliced to produce different proteins.arrow_forwardIf eukaryotes have monocistronic genes, why is the number of known proteins more than the number of known genes? A. Post-translational modification B. Alternative splicing C. Base substitution D. Post-transcriptional modificationarrow_forwardWhich statement/s is/are TRUE about transcription?A. During transcription, DNA polymerase binds to RNA and separates the DNA strands.B. RNA polymerase uses one strand of DNA as a template to assemble nucleotides into a strand of RNA.C. RNA polymerase binds only to DNA promoters, which have specific base sequences.D. Promoters are signals in RNA that indicate to RNA polymerase where to begin transcription.E. Transcription occurs in the 3’ to 5’ direction with respect to the growing mRNA strand.arrow_forward
- Chronic liver disease is common among HIV-infected patients, and is increasingly a cause of mortality and morbidity. The disease is usually a result of the destruction and altering of specific liver cell membrane proteins, which damages and kills liver cells. How does HIV influence this activity? A. Protein synthesis is altered in HIV patients due to the insertion of viral RNA. B. Liver disease is a side-effect of several HIV medications. C. HIV halts DNA transcription and inhibits protein synthesis. D. Liver disease is caused by the attack of the HIV virus on the organ itselfarrow_forwardWhat will result from the binding of a transcription factor to an enhancer region? a. decreased transcription of an adjacent gene b. increased transcription of a distant gene c. alteration of the translation of an adjacent gene d. initiation of the recruitment of RNA polymerasearrow_forwardWhat is the name of the process that adds a modified guanosine nucleotide to the 5’ phosphates of pre-mRNAs in eukaryotes? a. splicing b. polyadenylation c. capping d. nuclear export e. photophosphorylationarrow_forward
- Eukaryotes such as humans have linear chromosomes. In order to signal the end of DNA replication, there is a large repetitive sequence of DNA called a telomere. The telomere region of the DNA signals a process called a. detachment b. termination c. elongation d. transcriptionarrow_forwardThe BRCA genes produce DNA repair proteins. Genetic testing is available that can determine if a person has a mutation in the BRCA genes that makes the proteins less able to function. What is the result of a BRCA mutation? A. The person is more likely to develop cancer if other DNA in the cell mutates. B. The person is less likely to develop cancer unless the BRCA region is methylated. C. The person is less likely to develop cancer because the BRCA gene will inhibit the cell cycle checkpoints. D. The person is more likely to develop cancer because the BRCA gene promotes an increased rate for mitosis.arrow_forwardWhat will most likely happen when the -35 element and pribnow box are mutated? a. The sigma factor will not be able to bind to TBP. b. The rate of transcription will increase. c. RNA Polymerase II will not be able to bind to the promoter region. d.arrow_forward
- Which statement is true about RNA polymerase (which is required for transcription)? A. RNA polymerase does not require a primer to initiate the synthesis of RNA. B. RNA polymerase uses deoxyribonucleoside triphosphates. C. RNA polymerase is not an enzyme. D. RNA polymerase does not require a template.arrow_forwardWhy are errors in DNA methylation so destructive to cells? a. They cause improper activation or inactivation of DNA segments coding for important genes or micro RNAs. b. They cause improper methylation of proteins. c. They cause improper methylation of mRNA transcripts. d. All of these are possible explanations for methylation error damage..arrow_forwardWhy is regulating transcription the main way that cells control gene expression? A. Because transcription is the last step in gene expression, stopping here ensures that the cell has a stockpile of proteins to prepare them from all unexpected environmental changes. B. Because transcription involves interactions with DNA, preventing transcription reduces the changes of mutation in the cell’s genome. C. Because transcription is the first step in gene expression, stopping at transcription reduces the amount of energy and resources used by producing unnecessary gene products. D. Because transcription is the shortest step in gene expression, preventing transcription has little effect on the rate of protein production.arrow_forward
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