Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 14IMT
For each statement, identify which major theme is evident (the relationship of structure to function, information flow, pathways that transform energy and matter, interactions within biological systems, or evolution) and explain how the statement relates to the theme. If necessary, review the theme descriptions (see Chapter 1) and review the examples highlighted in blue in this chapter.
14. By examining the compactness of a chromosome region (loose versus tightly wound), you can gain insight into whether the genes in that region are actively being used.
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What is the basic flow of genetic information in all cellular life ? Include in your answer a the steps in the flow of genetic information and a brief definition for each .
(a) Explain the relationship between DNA, genes, and chromosomes during the passing of genetic information.
(b) During the passing of genetic information from one generation to the next via chromosomes, nondisjunction can occur, interrupting the process. Describe the events that take place during nondisjunction.
Consider the diagram below and answer the following questions:
The image shows [Select]
chromosome(s).
• How many chromosomes are shown in the image? [Select]
Which term best describes what is shown by the bracket labeled "a"?
[Select]
D
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Chapter 8 Solutions
Campbell Essential Biology (7th Edition)
Ch. 8 - Which of the following is not a function of...Ch. 8 - In what sense are the daughter cells produced by...Ch. 8 - Why is it hard to observe individual chromosomes...Ch. 8 - A biochemist measures the amount of DNA in cells...Ch. 8 - What phases of mitosis are opposite in terms of...Ch. 8 - Complete the following table to compare mitosis...Ch. 8 - If an intestinal cell in a dog contains 78...Ch. 8 - A micrograph of a dividing cell from a mouse shows...Ch. 8 - Prob. 9SQCh. 8 - Prob. 10SQ
Ch. 8 - Although nondisjunction is a random event, there...Ch. 8 - Prob. 12IMTCh. 8 - Prob. 13IMTCh. 8 - For each statement, identify which major theme is...Ch. 8 - A mule is the offspring of a horse and a donkey. A...Ch. 8 - You prepare a slide with a thin slice of an onion...Ch. 8 - Interpreting Data The graph shows the incidence of...Ch. 8 - If an endangered species can reproduce by...Ch. 8 - Every year, about a million Americans are...Ch. 8 - The practice of buying and selling gametes,...Ch. 8 - Prob. 21BS
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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
- DNA contains the genetic information that controls all processes of heredity in a cell. The total length of all DNA in the cells of a human body can stretch to the moon and back four times.The terms that describe a length of DNA and the form in which it remains for most of its life, respectively are: Select one: a. Length of DNA Form in which it spends most of its time life Centromere Locus b. Length of DNA Form in which it spends most of its time life Chromosome Chromatin c. Length of DNA Form in which it spends most of its time life Chromosome Centromere d. Length of DNA Form in which it spends most of its time life Centromere Telomerearrow_forwardThe continuity of life depends on a cell cycle during which genetic information is passed from a parent cell to daughter cells. Because cell division plays several important roles in life, it is important that the cycle be regulated. Which of the following are reasons the cell cycle must be regulated? Select all that apply. The continuity of life depends on a cell cycle during which genetic information is passed from a parent cell to daughter cells. Because cell division plays several important roles in life, it is important that the cycle be regulated.Which of the following are reasons the cell cycle must be regulated? Select all that apply.[ ]To make sure cells only divide when conditions are favorable for growth and development of the organism[ ]To make sure daughter cells end up with the right number of chromosomes[ ]To make sure daughter cells are genetically different from the parent cell[ ]To allow cells to respond to cues from their internal state and from their environment.arrow_forwardBriefly, be able to define each of these AND, where relevant, tell what do they do, and which process(es) are they involved in (for example, replication or translation or transcription or splicing etc.) * means can you draw it (stick figure)? *fork Genetic terms on test3 helicase heritability (broad vs. narrow sense) Hox genes Intercalating agent Kinetochore MRNA (eukaryotic) 3 processing steps nucleosome *nucleotide (what are its parts?) Okazaki fragment *operon PCR plasmid polyA polymerase polyploidy vs. aneuploidy *promoter proofreading purine pyrimidine QTLarrow_forward
- Consider the following DNA molecule (shown in the picture) and assume this is the DNA sequence of the entire chromosomes. list the amino acid sequences of the possible protein or proteins that could be produced from this DNA sequence what would be the DNA sequence of a sister chromatid generated from this chromosome sequence? (specify the 5' nd 3' ends)arrow_forwardAll the cells of one organisms share the genome. However, during development, some cells develop into skin cells while others develop into muscle cells. How can the same genetic instructions result in two different cell types in the same organism? Thoroughly explain your answer.arrow_forwardIn which stage(s) of the cell cycle, mitosis or meiosis do each of these processes occur (multiple stages apply to some) Crossing-over: Chromosome supercoiling: Separation of sister chromatids: DNA synthesis: Chromosome reduction from 2N to N: 4. A previously undiscovered single celled organism was found living at a great depth on the ocean floor. Its nucleus contains only a single, linear chromosome consisting of 7x10^6 nucleotide pairs of DNA coalesced with three types of histone-like proteins. The analysis of individual nucleosomes revealed that each unit contained one copy of each protein and that the short linker DNA had no protein bound to it If the entire chromosome consists of nucleosomes (discounting any linker DNA), how many are there and how many total proteins are needed to form them?arrow_forward
- In this unit you learned about the Hershey and Chase experiment that showed that DNA is the genetic material of bacteriophage viruses, which was fairly simple given that viruses only have DNA and protein components. Describe an experiment you could perform or evidence you could observe that would prove that DNA is the genetic material that results in inheritance of traits (through gene expression) in a multicellular animal. (NOTE: do not describe the Hershey and Chase experiment or the Griffith experiment in your answer)arrow_forwardBioinformatics is an interdisciplinary field that integrates knowledge of computer science with mathematics and statistics to solve biological questions. Many bioinformatics tools for gene prediction, homology modelling and such are available free online. (1) What does BLAST stand for? (ii) Explain the function of BLAST.arrow_forwardMany aspects of gene function can be nicely explained with the one- gene-one-enzyme hypothesis, which states that a gene controls the production of an enzyme. Which of the following findings about gene expression, though, requires an expansion of this simple concept? Non-enzyme proteins are made from genes too. Some genes code for RNA molecules only. Enzymes composed of different polypeptides are coded for by more than one gene. a and c, but not b a, b, and carrow_forward
- Briefly describe a summary of the flow of genetic information in cells with diagram.arrow_forwardExplain the hierarchical relationships among the following: genomes, genes, nucleosomes, chromosomes, and chromatin.arrow_forward1.B Which of the following processes takes place in the cytoplasm? - DNA replication - transcription -intron removal -translation -primary mRNA splicing 1.C For a DNA strand that is two nucleotides long, how many different sequences are possible? -2 -4 -8 -16 -64 1.D Which of the following is mismatched? A)physical expression of a trait - phenotype B)allele that masks the expression of an alternate allele - dominant C)identical alleles - heterozygous D)allele whose expression can be masked by an alternate allele recessive E)the specific alleles that an individual has - genotypearrow_forward
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