Inheritance Patterns

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Patterns of

inheritance

parent Drag a boxes, but don't click Breed yet.

Question: What patterns are shown by offspring traits?

1. Predict: What do you think the offspring of a black mouse and a white mouse will look like?

I think the offspring will have black fur, as black is a dominate color.

2. Observe: Click Breed several times. What do you see? The offspring remaining black

3. Observe: Drag two offspring into the Holding Cages. These mice are called hybrids

because their parents had different traits. Click Clear, and then breed the two hybrids.

What do you see now? Some offsprings with White fur,and some with black

4. Experiment: Turn on Show statistics. Click Breed until there are 100 offspring.

How many offspring were black? 70

How many were white? 30

5. your Explore: notes. Try other combinations of mouse parents. Write the results of each

the parents When you have finished, answer the following questions. (Note: You experiment can refer in to

as "pure black," "pure white," or "hybrid.")

A. Which parent combination(s) yield only white offspring?

pure white

B. Which parent combination(s) yield only black offspring? pureblack

C. Which parent combination(s) yield a mixture of black and white offspring?

hybrid.

6.

inheritance. Challenge: Based Use your on experiments own similar to these, Gregor Mendel devised a

such as fur color is passed observations down from parents to come to up offspring. with your own explanation theory of how of a trait

Write

possible, your discuss explanation your theory down on with an your extra classmates sheet of paper and teacher. and attach it to this worksheet. If