Warm Up 10 is due on Wednesday March 31, 2004, at 9:30 am
Remember...look at the lecture notes and do the readings before (or while) doing the Warm Up. You may need to look terms up in the book's glossary or on the CD (or on google!).

First name :

Last name :

Class Section (1, 2 or 3):
(See Oncourse to determine whether you are in 1= A410, 2 = A411, or 3 = A413)

Please enter a nickname (in case your answer is used in class!)

The following three questions refer to material you were to read in preparation for class. These questions require you to write a three or four sentence response. It is OK to answer 'I don't know' - but STATE WHY you are confused! (Don't just say 'I don't know' - you probably DO!) Each WarmUp worth 3 points if answered on time and must be submitted via the web. See notes page for prior Warm Ups and student responses.

QUESTION 1: In Mendel's original experiments with purple and white pea flowers, why were only purple flowers seen in the first (F1) generation? Why was there a 3:1 ratio of purple:white in the next generation (the F2)?

QUESTION 2: In your own words, what is the difference between genotype and phenotype?

QUESTION 3: If you and your spouse are carriers for sickle cell disease (Ss), that means that you have a 25% chance (1 in 4 chance) of producing a child with sickle cell disease (ss - if both of you donated the recessive allele in the egg and sperm). If you have 4 children, does this mean that one of then WILL have sickle cell disease? Why or why not?

QUESTION 4: (Optional) You have probably heard that there are genes 'for' blue eyes, brown eyes, hair color, skin color, etc. In your own words, how do you think GENES - DNA information inside your cell nuclei - make your eye, hair or skin a certain color?

You can change your mind as many times as you like before hitting Submit. Print this page before submitting if you want to keep a record of your answers. You will get a confirmation box to let you know that your answers were submitted, and will return to the N100 main page after submitting.