Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Textbook Question
Chapter 16, Problem 2TYK
Which of the following is an important exception to the central dogma of molecular biology?
a. Many genes code for RNAs that function directly in the cell.
b. DNA is the repository of genetic information in all cells.
c. Messenger RNA is a short-lived “information carrier.”
d. Proteins are responsible for most aspects of the
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Which among the following statements is not true about mutations? *
a.) It may either occur at the chromosomes or at the sequence of nucleic acids.
b.) It is caused either by mutagens or through hereditary genes.
c.) All mutations cause diseases and disorders in the developing organism.
d.) All mutations causes a change in the structure or sequence of the genetic material.
Which of the following does not conform about Genetic Engineering? *
a. used recombinant DNA (rDNA) technology
b. direct manipulation of only one gene
c. requires complex machinery and innovative minds
d. process of manually transferring genetic information
Humans have engaged in genetic manipulation for millennia, producing plant and animal varieties through selective breeding and hybridization that significantly modify genomes of organisms. Why do you think modern genetic engineering, which often entails introducing or modifying only one or a few genes, has met with so much opposition? Should some forms of genetic engineering be of greater concern than others? Explain.
Chapter 16 Solutions
Biological Science (7th Edition)
Ch. 16 - 2. Which of the following is an important...Ch. 16 - Prob. 3TYKCh. 16 - A minimal genetic code requires only 21 codons–one...Ch. 16 - MODEL Draw a hypothetical metabolic pathway in...Ch. 16 - Prob. 11PIATCh. 16 - Prob. 12PIATCh. 16 - 13. A small portion of the human transport protein...Ch. 16 - Prob. 14PIAT
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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
- a. Which gene is mutated in individuals with sickle-cell anemia? b. What are the major symptoms of this disorder? c. What was the first published scientific description of sickle-cell anemia? d. Describe two other features of this disorder that you learned from the OMIM database and state where in the database you found this informationarrow_forwardSegmental duplications play an important role in evolution by a. giving rise to new genes and multigene families. b. keeping the number of genes in a genome constant. c. eliminating repetitive sequences produced by transposition. d. controlling the base content of the genome.arrow_forwardWhich molecular systems can be/have been engineered by molecular programming? Write the logic behind what the molecular programming aims to doarrow_forward
- The challenge in using sequence data to estimate the evolutionary tree for all living things is to find a gene that shows recognizable sequence similarities even between highly distantly related species . Which of the following should NOT be among the features of this gene? A. The gene subject to strong diversifying selection. B. It is present in all organisms. C. It encodes a product whose function is essential. D. The function of the gene must have remained the same in all organisms.arrow_forwardDNA technology has many medical applications. Which of the following is not done routinely at present? (A) production of hormones for treating diabetes and dwarfism (B) analysis of gene expression for more informed cancer treatments (C) gene editing by the CRISPR-Cas9 system in viable human embryos to correct genetic diseases (D) prenatal identification of genetic disease allelesarrow_forwardAre the following examples a description of genetics at the molecular, cellular, organismal, or populational level? A. People with cystic fibrosis have lung problems due to a buildup of mucus in their lungs B. The mutant CF gene encodes a chloride transporter that doesn't transport chloride ions very well. C. A defect in the chloride transporter causes a salt imbalance in lung cells.arrow_forward
- Which organism violates the central dogma of molecular biology?arrow_forwardWould the rate of deleterious or beneficial mutations be a good molecular clock? Why or why not?arrow_forwardWhy are homologous traits similar? A. they result from genetic and developmental similarities. B. they are epigenetic effects. C. they are derived from a common ancestor D. they result from convergent evolution E. they result because the environmental conditions of the ancestors were similar.arrow_forward
- A researcher compares several species of maple tree by examining the amino acid sequence of a protein. The researcher discovers that the amino acid sequence differs in three locations depending on the species of tree. What can the researcher conclude based on this data? A. Maple trees are evolving rapidly. B. The different species have different morphological characteristics. C. The maple trees have been exposed to high levels of mutagens. D. The genetic makeup of the maple tree population has changed over time.arrow_forwardIs gene transfer a form of eugenics? Is it advantageous to use gene transfer to eliminate some genetic disorders? Can this and other technology be used to influence the evolution of our species? Should there be guidelines for the use of genetic technology to control its application to human evolution? Who should create and enforce these guidelines?arrow_forwardWhat are some of the implications of all organisms having similar genetic systems? a. That all life forms are genetically relatedb. That research findings on one organism’s gene function can often be applied to otherorganismsc. That genes from one organism can often function in another organism d. All of the abovearrow_forward
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