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Questions and Answers
What is the estimated percentage of plant species that descended from ancestors formed by polyploid speciation?
What is the estimated percentage of plant species that descended from ancestors formed by polyploid speciation?
- More than 90%
- Nearly 100%
- More than 50%
- More than 80% (correct)
What is the term for the process of polyploid speciation that occurs between two different species?
What is the term for the process of polyploid speciation that occurs between two different species?
- Sympatric speciation
- Autopolyploidy
- Allopolyploidy (correct)
- Habitat differentiation
What is the purpose of using chemicals that induce meiotic and mitotic errors in plant genetic manipulation?
What is the purpose of using chemicals that induce meiotic and mitotic errors in plant genetic manipulation?
- To create new polyploid plants with desirable traits (correct)
- To study the mechanisms of polyploid speciation
- To understand the genetic factors behind habitat differentiation
- To develop new species of plants that can thrive in extreme environments
Which of the following crops is an allohexaploid?
Which of the following crops is an allohexaploid?
What is an example of a polyploid species in animals that has been documented in historical times?
What is an example of a polyploid species in animals that has been documented in historical times?
What is the result of allopolyploidy events between pairs of introduced European Tragopodon species in the Pacific Northwest?
What is the result of allopolyploidy events between pairs of introduced European Tragopodon species in the Pacific Northwest?
What is the primary mechanism of sympatric speciation in plants?
What is the primary mechanism of sympatric speciation in plants?
Which process can result in reproductive isolation due to a new habitat or food source?
Which process can result in reproductive isolation due to a new habitat or food source?
What is the term for the zone where allopatric species renew contact with one another?
What is the term for the zone where allopatric species renew contact with one another?
What is the main reproductive barrier separating the gene pools of the two closely related species of cichlids mentioned in the text?
What is the main reproductive barrier separating the gene pools of the two closely related species of cichlids mentioned in the text?
What is the outcome of genetic change in an isolated population in allopatric speciation?
What is the outcome of genetic change in an isolated population in allopatric speciation?
What is the term for the process by which a new species forms while geographically isolated from its parent population?
What is the term for the process by which a new species forms while geographically isolated from its parent population?
What is the primary mechanism by which autopolyploid mutants achieve reproductive isolation in a single generation?
What is the primary mechanism by which autopolyploid mutants achieve reproductive isolation in a single generation?
Which of the following is a characteristic of allopolyploid hybrids?
Which of the following is a characteristic of allopolyploid hybrids?
What is the result of a failure of mitosis or meiosis in a cell, leading to polyploidy?
What is the result of a failure of mitosis or meiosis in a cell, leading to polyploidy?
Which of the following is NOT a mechanism of producing polyploid individuals?
Which of the following is NOT a mechanism of producing polyploid individuals?
What is the term for an individual with more than two sets of chromosomes, all derived from a single species?
What is the term for an individual with more than two sets of chromosomes, all derived from a single species?
What is the result of tetraploid individuals reproducing with themselves or other tetraploids?
What is the result of tetraploid individuals reproducing with themselves or other tetraploids?
