Factors Affecting Genetic Variation Answers

Which would most likely result in an increase in genetic variation in a population?

Which environmental factor would likely lead to an increase in genetic variation in a population of squirrels?

A new pesticide has been introduced to the habitat of this population of beetles.Which describes the effect of this environmental change?

Which term best describes the difference in colors of the birds below?

Environmental factors can influence natural selection because they can increase or decrease

Which of the following best defines gene flow?

Which environmental factor could lead to a decrease in genetic variation in a population of tuna?

A scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the population every six months. Usually, the population is thriving and has a gene pool with a wide variety of traits. But during one six-month period, an event occurred that affected the population, and when the scientist returned, the amount of genetic variation had decreased significantly. Which of the following is most likely the event that occurred to change the population?

A group of students is walking in the park, and one of them takes a picture of a pollen grain that is being blown by the wind. What caption can the student use for this picture?

In Wisconsin, a very large population of lake trout, in which individuals mate at random, experiences no migration, mutations, nor selective pressure for a number of years. Which of these is most likely to occur in the population?