Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 29, Problem 14CONQ
Would the rate of deleterious or beneficial mutations be a good molecular clock? Why or why not?
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As discussed, the overall rate of mutations in humans is estimated to be about 1 × 10−8 mutations per base pair per generation. How many new mutations would you expect each person to carry, on average, based on this mutation rate? Other studies have estimated that each person carries about 100 new loss-of-function mutations. How does this number compare with your estimate of the number of mutations based on the mutation rate? What might account for any differences?
Chapter 29 Solutions
Genetics: Analysis and Principles
Ch. 29.1 - Prob. 1COMQCh. 29.1 - Prob. 2COMQCh. 29.1 - 3. A pair of birds flies to a deserted island and...Ch. 29.1 - Prob. 4COMQCh. 29.2 - 1. Phylogenetic trees are based on
a. natural...Ch. 29.2 - Prob. 2COMQCh. 29.2 - An approach that is used to construct a...Ch. 29.2 - 4. Horizontal gene transfer is a process in which...Ch. 29.3 - Prob. 1COMQCh. 29.3 - Prob. 2COMQ
Ch. 29.3 - When the chromosomes of closely related species...Ch. 29 - 1. Discuss the two principles on which evolution...Ch. 29 - 2. Evolution, which involves genetic changes in a...Ch. 29 - Prob. 3CONQCh. 29 - Prob. 4CONQCh. 29 - 5. Would each of the following examples of...Ch. 29 - Distinguish between anagenesis and cladogenesis....Ch. 29 - 7. Describe three or more genetic mechanisms that...Ch. 29 - Explain the type of speciation (allopatric,...Ch. 29 - Prob. 9CONQCh. 29 - Prob. 10CONQCh. 29 - Discuss the major differences among allopatric,...Ch. 29 - Prob. 12CONQCh. 29 - Prob. 13CONQCh. 29 - Would the rate of deleterious or beneficial...Ch. 29 - 15. Which would you expect to exhibit a faster...Ch. 29 - Prob. 16CONQCh. 29 - 17. Plant seeds contain storage proteins that are...Ch. 29 - Take a look at the -globin and -globin amino acid...Ch. 29 - Compare and contrast the neutral theory of...Ch. 29 - Prob. 20CONQCh. 29 - 21. As discussed in Chapter 27, genetic variation...Ch. 29 - Prob. 22CONQCh. 29 - Two populations of snakes are separated by a...Ch. 29 - 2. Sympatric speciation by allotetraploidy has...Ch. 29 - 3. Two diploid species of closely related frogs,...Ch. 29 - A researcher sequenced a portion of a bacterial...Ch. 29 - F1hybrids between two species of cotton,Gossypium...Ch. 29 - 6. A species of antelope has 20 chromosomes per...Ch. 29 - Prob. 7EQCh. 29 - 8. Prehistoric specimens often contain minute...Ch. 29 - From the results of the experiment of Figure...Ch. 29 - InChapter 23, a technique called fluorescence in...Ch. 29 - Prob. 11EQCh. 29 - 12. Discuss how the principle of parsimony can be...Ch. 29 - 13. A homologous DNA region, which was 20,000 bp...Ch. 29 - Prob. 14EQCh. 29 - Prob. 1QSDCCh. 29 - 2. Compare the forms of speciation that are slow...Ch. 29 - 3. Do you think that Darwin would object to the...
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- What does the future hold for genomes? How will they be different in 100, 1,000, 1 million, or 1 billion years? Make this a long discussion.arrow_forwardYou have sequenced a few individuals in the population and found out that there are only two alleles in the population: one is GGGTCC and the other GGGTAC. You also knew that the DNA sequence encodes two amino acid residues. The mutation responsible for the difference is an insertion mutation a transition mutation nonsynonymous mutation a neutral mutation a silent mutationarrow_forwardCan you briefly explain each types of mutation (difference, unique fact, etc) ? Please don’t just copy and paste it from google :( -Missense mutation -Nonsense mutation -Silent mutation -Frameshift mutation -Repeat expansionarrow_forward
- Which organism violates the central dogma of molecular biology?arrow_forwardWhy is artificial selection or selective breeding considered a form of genetic engineering?arrow_forwardIn your own words, describe which type of mutation causes a greater change in the phenotype of an organism: insertions and deletions or point mutations.arrow_forward
- One unexpected result of the sequencing of the human genome was the finding that mutations in a single gene can be responsible for multiple distinct disorders. How do you think mutations in a single gene can have such diverse effects?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_forwardWhich of the following has an impact on the rate at which mutations occur in cells? (Choose All That Apply) the magnitude of an environmental change the number of times DNA is replicated the size of the genome of an organism the frequency of cell divisionarrow_forward
- A gene has length of 10000 nucleotides, some of them are ancestral (A) and others are mutant letters (M). Every generation 3% of the ancestral letters turn mutate and become M and 1% of the mutant letters revert to the ancestral state. Write a discrete time model for the number of the mutant nucleotides M (Hint: A = 10000 - M). If initially there are 0 mutant letters (all 10000 are ancestral), predict how many there will be in 10 generationsarrow_forwardSome bacteria might be able to respond to environmental stress by increasing the rate at which mutations occur during cell division. How might this be accomplished? Do you think there would be an evolutionary advantage of this ability? Explain.arrow_forwardWhat are the mechanisms in which DNA genomes evolve? Discuss two or more and provide examples and whyarrow_forward
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