EBK BIOLOGY
11th Edition
ISBN: 8220102797352
Author: Raven
Publisher: YUZU
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Chapter 24, Problem 2U
Summary Introduction
Introduction:
Mutation is a process of alteration in
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Students have asked these similar questions
The original DNA base sequence is
5’-AGCGTTACCGT-3’; a mutation in the DNA strand results in the base sequence 5’-AGGCGTTACCGT-3’. What can you conclude about the mutation?
A.
It is a frameshift mutation.
B.
It is a silent mutation.
C.
It is a deleterious mutation.
D.
It may result in a single amino acid change in the protein being coded for by this base sequence.
What potential problems must be considered in creating a transgenic bacterium with the human insulin gene isolated from genomic DNA to produce insulin?
a. The genetic code of bacteria is significantly different from the genetic code of humans.
b. The bacterial cell will be unable to posttranslationally process the insulin peptide sequence.
c. There is no way to get the bacterium to transcribe high levels of a human gene.
d. Both a and b present problems.
What is the difference between orthologs and paralogs?
a. Orthologs are homologous sequences; paralogs are analogous sequences.
b. Orthologs are more similar than paralogs.
c. Orthologs are in the same species; paralogs are in different species.
d. Orthologs are in different species; paralogs are in the same species.
Chapter 24 Solutions
EBK BIOLOGY
Ch. 24 - Humans and pufferfish diverged from a common...Ch. 24 - Prob. 2UCh. 24 - Prob. 3UCh. 24 - Homologous genes in distantly related organisms...Ch. 24 - All of the following are believed to contribute to...Ch. 24 - What is the fate of most duplicated genes? a. Gene...Ch. 24 - Chimp and human DNA whole-genome sequences differ...Ch. 24 - Prob. 2ACh. 24 - Analyze the conclusion that the Medicago...Ch. 24 - Analyze why an herbicide that targets the...
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- A mouse gene was identified and determined to be required for formation of heart muscle. A gene with a similar sequence was identified in the human genome. What experiment could scientists do to determine if the mouse and human genes have similar functions? A. The scientist could place the normal human gene into normal mice and see if the resulting mice are viable. B. The scientist could search the human genome for genes that encode proteins that are identical to the protein encoded by the mouse gene. C. The scientist could place the normal human gene into mutant mice to see if heart muscle forms in the mouse. D. The scientist could place the mutant mouse gene into humans to see if humans develop without heart muscle.arrow_forward1a) Why is it possible for you to study the eye colour gene by extracting cheek cells? a. Because the nucleus of every cell in the human body contains the same genetic information. b. Because the cheek cells are located near the cells of the eye and so they are able to exchange DNA. c. Because all genes in the human body are expressed at all times so it is easy to study them. d. All of the above are possible explanations. 1b) What is the purpose of heating the sample to 75°C following addition of the 0.2M NaOH solution? a. To denature the histone proteins that are keeping the DNA tightly coiled. b. To ensure that all the DNA is removed from the swab in preparation for PCR. c. To breakdown the cheek cell membrane to release the DNA from the cell. d. It breaks down the circular DNA down into linear fragments so that they will be easier to visualize.iarrow_forwardIf Avery, MacLeod, and McCarty had found that samples of heat-killed bacteria treated with RNase and DNase transformed bacteria, but that samples treated with protease did not, what conclusion would they have drawn? a. Protease carries out transformation. b. RNA and DNA are the genetic materials. c. Protein is the genetic material. d. RNase and DNAse are necessary for transformationarrow_forward
- Which statement about transposons is INCORRECT? a.A transposon is a small fragment of DNA that can move from one location in a chromosome to another location in the same chromosome. b.Transposon insertion into a gene causes a mutation that can be reversed by removal of the transposon. c.Transposon movement often occurs when the cell is under genomic stress. d.In nature, insertion of a transposon can be deliberately added into a harmful gene to enhance survival.arrow_forwardCould a frameshift mutation result in the production of a larger than wild type protein? A.Yes, but it’s likely only if the frameshift occurs early in the coding sequence. B.Yes, but it’s likely only if the frameshift occurs late in the coding sequence. C.Yes, by producing a longer than normal transcript D.Yes, by producing larger than normal Okazaki fragments. E.No, frameshift always results in the occurrence of STOP codons and premature termination of translationarrow_forwardIn next-generation sequencing, which of these advances allows for massively parallel sequencing? a. Pieces of DNA are fixed to a surface, so we can tell which new nucleotides were added to each piece. b. DNA sequences are read in real-time as nucleotides are added to each piece. c. Each segment of the genome can be pieced back together through shotgun alignment d. Single molecules of DNA can be read without the need for amplification.arrow_forward
- Cancer cells can divide much longer than most other cells. One possible reason is the presence of telomerase in cancer cells. How might telomerase aid cancer cells? A. It proofreads the telomere sequences. B. It increases the length of the telomeres. C. It decreases the length of the telomeres. D. It stabilizes the bonds in the telomeres.arrow_forwardA physicist name Dr Robert Bruce Banner was running some experiments in his lab using gamma rays. During the experiment he accidentally exploded an experimental bomb and was exposed to a huge amount of gamma rays. After that he experienced several effects of mutations. a. Explain how gamma rays could affect Dr. Banner DNA. b. Explain how DNA affected by gamma rays could be repaired in order to avoid mutations. c. What you expected to happen with Dr Banner? Is it likely that Dr Banner would develop super strength, or other super powers?arrow_forwardMost scientists consider the Human Genome Project (HGP) to be the most significant scientific project of the 21st century. Choose the statements that describe the key findings of the Human Genome Project. A. There are 23 pairs of chromosomes that make up the human genome. B. DNA exists in a double helical form. C. There are approximately three billion base pairs in the human genome. D. The human genome contains approximately 25000 genes. E. The genetic information of a cell is stored in the form of DNA.arrow_forward
- Explain each optionsarrow_forwardWhat is the advantage of using the neo gene to disrupt the function of a gene in knockout mice? a. The neo gene produces an antibiotic that kills unwanted cells. b. The neo gene is the right size for disabling other genes. c. The neo gene provides a selectable marker for finding cells that contain the disabled gene. d. The neo gene produces a toxin that inhibits transcription of the target genearrow_forwardWhy is it adaptive for a bacterium to not express the genes that encode that lactose utilization proteins when lactose is not available? a. Catabolism of lactose in protein transcription needs a lot of energy. b. The bacterium opts not to express the genes that encode proteins responsible for breaking down lactose to conserve enzymes. c. The bacterium opts not to express the genes that encode proteins responsible for breaking down lactose to conserve energy. d. The reason is conservation of energy for the enzyme. e. The bacterium opts not to express the genes that encode proteins responsible for breaking down lactose to conserve lactose.arrow_forward
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