Our modern corn was created through artificial selection from the ancestral plant
A - Alfalfa
B - Chihuahua
C - Wheat
D - Teosinte
Answer: D - Teosinte
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Mechanisms of Biological Evolution
- Why do mutations appear more often with selective breeding?
- What is the main difference between natural selection and artificial selection?
- Which is NOT a trait that might be selected for through artificial selection?
- Artificial selection is also known as
- What best describes natural selection?
- What color of moth was most common before the Industrial Revolution?
- What best describes directional selection?
- How did the Industrial Revolution help the dark-colored moths become more common?
- Why is the peppered moth phenomenon uncommon?
- What is true about random mutations?
- Genetic variability describes which of the following?
- Why is evolution best described as an editing process?
- What best describes genetic variation?
- Which is true about evolution?
- A postzygotic __________ is a mechanism that reduces the viability or reproductive capacity of hybrid offspring.
- A scientist mates a blue population of lizards with a red population of lizards. She observes that one out of ten hybrid offspring survive to adulthood compared to roughly, eight out of ten blue or red lizards. This is an example of
- A farmer mates a goat and a sheep together. However, he finds he cannot use this hybrid animal to produce any new hybrids. This is an example of
- A scientist mates two different organisms, She observes no offspring. A closer inspection reveals that the hybrid embryo does not develop properly. This is an example of
- Which of the following statements is true?
- A zoo wants to assist two related endangered species with their reproduction and plans to directly implant the sperm into the female. Which type of isolation cannot be overcome this way?
- One species of sea urchin is able to mate with another, but fertilization is rarely successful. What is this an example of?
- Two species of plants that do not cross-pollinate are an example of ________ isolation because they flower at different times of the year.
- One way to overcome behavioral isolation that prevents animals from reproducing might be to ______.
- Spatial isolation is the main reason why _______ do not mate.