Genetics: From Genes to Genomes
6th Edition
ISBN: 9781259700903
Author: Leland Hartwell Dr., Michael L. Goldberg Professor Dr., Janice Fischer, Leroy Hood Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 1, Problem 14P
Explain how the exon/intron structure of genes contributes to the generation of new gene functions during evolution.
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What significance does the relative size of exons and introns have for the evolution of genes and of gene function?
Explain why the genetic code is said to be redundant and virtually universal? How these features may reflect its evolutionary history?
Outline the processes of exon shuffling and horizontal gene transfer, and explain how they produce genetic variation.
Chapter 1 Solutions
Genetics: From Genes to Genomes
Ch. 1 - Choose the phrase from the right column that best...Ch. 1 - If one strand of a DNA molecule has the base...Ch. 1 - The size of one copy of the human genome is...Ch. 1 - Indicate whether each of the following words or...Ch. 1 - a. How many different DNA strands composed of 100...Ch. 1 - RNA shares with proteins the ability to fold into...Ch. 1 - The human protein lactate dehydrogenase shown in...Ch. 1 - a. Are the triplets in the genetic code table...Ch. 1 - Why do scientists think that all forms of life on...Ch. 1 - Why would a geneticist study a yeast cell or a...
Ch. 1 - How can a scientist tell if a protein present in...Ch. 1 - Figure 1.6 shows the amino acid sequences of parts...Ch. 1 - Why do scientists think that new genes arise by...Ch. 1 - Explain how the exon/intron structure of genes...Ch. 1 - Mutations in genes that change their pattern of...Ch. 1 - A single zebrafish gene function was inactivated...Ch. 1 - Different mutations in the WDR62 gene that...Ch. 1 - Researchers have successfully used gene therapy to...Ch. 1 - By the time this book is published, it will likely...
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- Discuss the role that transposons may have played in the evolution of modern organisms.arrow_forwardDetermine which of the genomic traits are associated with prokaryotes or eukaryotes. These traits include relative genome size. number of genes, gene density, and number of exons. Prokaryote about one gene every 2000 to 100000 bp relatively large, variable size genome multiple introns Answer Bank relatively small genome about one gene every 1000 bp 500 to 7000 genes Eukaryote 6000 to 30000 genes few, if any, intronsarrow_forwardExplain how the wobble hypothesis enables organisms to encode fewer tRNA moleculesarrow_forward
- A gene has 60 introns. How man exons does it have? O a) 60 O b) 180 c) 59 d) 61 Listen Splicing ▶ a) Connects proteins together b) Removes Protein sequences c) Removes intron RNA d) Removes Exon RNAarrow_forwardEXPLAIN The Genetic Code Is Almost,but Not Quite, Universal?arrow_forwardExplain about the Origins of the Human Genome ?arrow_forward
- Describe the process of molecular cloningarrow_forwardYou have isolated a transposable element from the human genome and have determined its DNA sequence. How would you use this sequence to determine the copy number of the element in the human genome if you just had a computer with an Internet connection? (Hint: see Chapter 14.)arrow_forwardWhat role does epigenetics play in the process of genetic evolution?arrow_forward
- (a) Mutations have many different causes and effects. Outline how mutations can affect the gene pool of a population. (b) Draw a table that identifies THREI types of mutagens, describes how each mutagen causes mutation and describes the effects of each mutagen.arrow_forwardGive three examples of the importance of consensus sequences to gene expression.arrow_forwardExplain how transposons and retrotransposons move to new locations in a genome.arrow_forward
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Genome Annotation, Sequence Conventions and Reading Frames; Author: Loren Launen;https://www.youtube.com/watch?v=MWvYgGyqVys;License: Standard Youtube License