Mendel And His Peas; Understanding Inheritance

Test Description: Chapter 5 lesson 1 and 2

Instructions: Answer all questions to get your test result.

1) a true-breeding purple-flower plant crossed with a true-breeding white-flower plant

2) a cross between two hybrid purple-flower plants (purple and white)

3) a hybrid purple-flower plant (purple and white) crossed with a true-breeding white-flower plant

4) Out of the many hybrid pea plants that Mendel crossed, about what percent of the second-generation plants had the dominant form of each trait?

5) Out of the many hybrid pea plants that Mendel crossed, about what percent of the second-generation plants had Out of the many hybrid pea plants that Mendel crossed, about what percent of the second-generation plants had the recessive from of trait?

6) Why did Mendel use cross-pollination in his experiments?

7) What did Mendel conclude about inherited traits?

8) fertilization that occurs when pollen from one plant lands on the pistil of a flower on the same plant

9) fertilization that occurs when pollen from one plant reaches the pistil of a flower on a different plant

10) plants that produce the same traits as parents when they are self-pollinated

11) a genetic factor that is blocked by the presence of a dominant factor

12) a genetic factor that blocks another genetic factor

13) the passing of traits from parents to offspring

14) offspring from parents with different forms of the same trait

15) Segments of chromosomes that contain coded information for an organism’s traits are called

16) The outward expression, or appearance, of a genetic trait is its

17) The designation Rr for a pea-plant’s peas shows that the plant is

18) A model that is used to show possible outcomes of cross-breeding is a

19) A cow with red hairs and white hairs in its coat is an example of

20) Variations in people’s height and eye color are due to


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