Practice Questions

TLS Online TPP Program

#Question id: 12343

Hybrids between some related species of plants are sterile because the parent plants had different chromosome numbers. Occasionally the chromosome number of such a hybrid plant doubles spontaneously. Which of the following best describes the descendants of those plants with the double chromosome number?

#Unit 10. Ecological Principles

The plant with the double chromosome number would be genetically defective and have no descendants.
The descendants would be at a selective advantage because of the increased ability to introgress.
The descendants would be reproductively successful because they could backcross with the parental species.
The descendants would regain the ability to reproduce sexually because chromosomes could pair normally.

More Questions

TLS Online TPP Program

#Question id: 7703

#Unit 9. Diversity of Life Forms

Carolus Linnaeus believed that species remained fixed in the form in which they had been created. Linnaeus would have been uncomfortable with ________.

TLS Online TPP Program

#Question id: 10512

#Unit 6. System Physiology – Plant

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids alkaloids are derived from,

TLS Online TPP Program

#Question id: 5314

#Unit 11. Evolution and Behavior

Which of the following statements correctly describes one characteristic of a multigene family?

TLS Online TPP Program

#Question id: 24574

#Unit 10. Ecological Principles

If number of birds in the population N0= 100 next year ecologists count 110 birds in the same population, consider a population of birds growing at a rate of 5% per year. After 5 years how many birds would there be?