Chapter 5: Understanding DNA Mutation

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What is mutation?

A phenomenon resulting in recombination of DNA sequences

A phenomenon resulting in alteration of DNA sequences (correct)

A phenomenon resulting in duplication of DNA sequences

A phenomenon resulting in deletion of DNA sequences

What is a classical example of point mutation?

Hemophilia

Cystic fibrosis

Sickle cell anemia (correct)

Down syndrome

What is the result of frame-shift mutations?

Alteration in chromosomes (correct)

Deletion of entire chromosomes

Insertion of base pairs of DNA

Duplication of DNA sequences

What is the term for mating between relatives?

Consanguineous mating Signup and view all the answers

In addition to recombination, what is another phenomenon that leads to variation in DNA?

Mutation Signup and view all the answers

What are the chemical and physical factors that induce mutations referred to as?

Mutagens Signup and view all the answers

What does loss (deletions) or gain (insertion/duplication) of a segment of DNA result in?

Mutation Signup and view all the answers

What is the result of a mutation in DNA sequences?

Changes in the genotype and phenotype Signup and view all the answers

Which phenomenon leads to variation in DNA, in addition to recombination?

Mutation Signup and view all the answers

Where are genes known to be located, which make them susceptible to alterations due to chromosomal aberrations?

Nucleus Signup and view all the answers

What is the term for a mutation that arises from a change in a single base pair of DNA?

Point mutation Signup and view all the answers

What phenomenon results in alteration of DNA sequences?

Mutation Signup and view all the answers

Where are genes known to be located?

Chromosomes Signup and view all the answers

What is the term for a change in a single base pair of DNA?

Point mutation Signup and view all the answers

What causes frame-shift mutations?

Deletions and insertions of base pairs of DNA Signup and view all the answers

Which phenomenon leads to variation in DNA, along with recombination?

Mutation Signup and view all the answers

What results from loss or gain of a segment of DNA?

Chromosomal aberration Signup and view all the answers

What induces mutations and is referred to as mutagens?

Chemical and physical factors Signup and view all the answers

In which cells are chromosomal aberrations commonly observed?

Cancer cells Signup and view all the answers

Chapter 5: Understanding DNA Mutation

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Questions and Answers

What is mutation?

What is a classical example of point mutation?

What is the result of frame-shift mutations?

What is the term for mating between relatives?

In addition to recombination, what is another phenomenon that leads to variation in DNA?

What are the chemical and physical factors that induce mutations referred to as?

What does loss (deletions) or gain (insertion/duplication) of a segment of DNA result in?

What is the result of a mutation in DNA sequences?

Which phenomenon leads to variation in DNA, in addition to recombination?

Where are genes known to be located, which make them susceptible to alterations due to chromosomal aberrations?

What is the term for a mutation that arises from a change in a single base pair of DNA?

What phenomenon results in alteration of DNA sequences?

Where are genes known to be located?

What is the term for a change in a single base pair of DNA?

What causes frame-shift mutations?

Which phenomenon leads to variation in DNA, along with recombination?

What results from loss or gain of a segment of DNA?

What induces mutations and is referred to as mutagens?

In which cells are chromosomal aberrations commonly observed?

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