Thursday, January 21, 2010

Dragon Genetics

Students created their very own dragons to see how Mendel's laws of segregation and independent assortment work.

On Friday the following analysis questions are due, as well as drawings of each dragons.

1. How does dropping the stick on the table and transcribing the letters on the sides facing up follow Mendel’s Law of Segregation? [First state the law.]

2. Explain how dropping the green, orange, and red sticks illustrates Mendel’s Law of Independent Assortment? [First state the law.]

3. The gene for fangs is recessive, yet most of the dragons have fangs. How can this happen? [Hint. The gene that causes dwarfism (achondroplasia) in humans is dominant.]

4. What is the sex of your baby?

5. What traits are sex-linked? [First define “sex-linked”.]

6. Identify any gene deletions or inversions in the chromosomes you have.

7a. What traits are more likely to be found in males? [Consider sex-linked,

sex-influenced and sex-limited traits.]

7b. How might these be an advantage to this sex? [Be creative in your answers.]

8a. What traits are more likely to be found in females?

8b. How might these be an advantage to this sex?


This lab comes Brynmawr.

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