Question | Answer |
What step did Mendel take to be sure that his pea plants cross-pollinated? | He removed the antlers of one plant |
What happens when a true-breeding plant self-pollinates? | All of its offspring have the same traits as the parent |
Why were ratios important in Mendel's work? | They showed the relationship between two different things |
What was the one thing Gregor Mendel relized could explain the results of of his experiments? | Each trait had two sets of instructions, one from each parent |
What did Mendel discover about recessive traits? | Recessive traits never appear in the second generation |
What is a feature that has different forms in a population? | characteristic |
What is a trait? | different forms of a characteristic |
When a plant fertilizes itself, what is it called? | self-pollinating plant |
What kind of plant produces offspring with the same traits as the parent? | true-breeding |
What is heredity? | traits passing from parents to offspring |
What color flowers will a true-breeding plant with purple flowers always have? | purple flowers |
What reappears in the second generation that disappears in the first generation? | recessive traits |
What did Mendel call the trait that appeared in all of his first generation plants? | the dominant trait |
What is the probability of getting "heads" in a coin toss? | 1/2 |
What are two ways that plants can cross-pollinate? | Pollen can be carried by insects or by the wind |
What three characteristics did Mendel study in pea plants? | seed shapes, plant height & flower color |
What trait appears in the first generation? | the dominant trait |
What trait appears in the second generation? | the recessive trait |
What occurs when a plant pollinates a different kind of plant? | cross-pollination |
If you had gray and white flowers, why are all first generation flowers gray? | Gray is the dominant color |