Loose-leaf Version for What Is Life? A Guide to Biology
4th Edition
ISBN: 9781319106317
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 6, Problem 9SA
Summary Introduction
To analyze:
Why the thought that mutations are harmful events is somewhat of a paradox.
Introduction:
Mutations are sudden, random changes in the sequence of bases in the DNA of an organism.
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Statistically, are mutations almost always beneficial or harmful? Why?
Why is a random mutation more likely to be deleterious than beneficial?
How is it possible that some, but not all, mutations get passed from one generation to the next?
Chapter 6 Solutions
Loose-leaf Version for What Is Life? A Guide to Biology
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- Two types of mutations discussed in this chapter are (1) nucleotide changes and (2) unstable genome regions that undergo dynamic changes. Describe each type of mutation.arrow_forwardAlthough it is well known that X-rays cause mutations, they are routinely used to diagnose medical problems, including potential tumors, broken bones, and dental cavities. Why is this done? What precautions need to be taken?arrow_forwardTwo types of mutations discussed in this chapter are nucleotide changes and unstable genome regions that undergo dynamic change. Describe each type of mutationarrow_forward
- Please help me, this is from practice, double check your answers, previous tutors got it wrongarrow_forwardwhat type of mutation can be avoided when doing the following: 1. Eating healthy foods 2. avoiding too much sunlight and radiation from phones 3. no smoking 4. wearing proper equipments when dealing with chemicalsarrow_forwardYour friend claims that all mutations are harmful to living things. Do you agree or disagree with this claim? Support your position with: • a description of a genetic mutation and • a scientific explanation of how mutations may affect an organism such as a strawberry or spinach plant. ४ Font Size ☐☐☐ — Ω A B I US 99arrow_forward
- What is mutations definition of mutations? types of mutations proper explanation and diagramarrow_forwardResearchers sometimes use gamma rays to induce deletion mutations in certain organisms and thus create mutant strains. What might this suggest regarding how exactly gamma rays interact with DNA? What are they probably causing to happen that results in these deletion mutations?arrow_forwardWhich one is NOT a possible cause of mutation? extreme temperature bacterial infection mistakes in nitrogenous base pairing chemicals and radiationarrow_forward
- A nonsynonymous mutation is also referred to as missense mutation. Which of the following correctly describe these mutations? They are permanent and cannot revert or reverse mutate back into a wild-type sequence. They cause a non-functional amino acid to replace a functional amino acid. O They result in the insertion or deletion of a small number of nucleotides to the DNA. They change the nucleotide sequence of a gene but do not change the sequence of the resulting protein. None of the provided answers are correct. They convert a codon for a particular amino acid within a gene into a stop codon. They insert an additional amino acid into the final protein product.arrow_forwardPlease help me, this is from practice, double check your answers, previous tutors got it wrongarrow_forwardAs 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?arrow_forward
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