Laboratory Excercises
Laboratory on Cellular and Population Genetics: Hardy Weinberg Equilibrium
Your Name _______________________
This lab exercise requires that we count certain Mendelian traits among students present in the lab. Your professor will explain each trait being addressed and will then ask students to identify if they are dominant or recessive for that specific trait. The collected traits will then be plugged into the Hardy-Weinberg Equilibrium formula in order to calculate frequency of Homozygous dominant, Heterozygous and Homozygous recessive individuals in the same.
p2 + 2pq + q2 = 100
| Q | Trait observed | Homozygous dominant [p2] | Heterozygous [2pq] | Homozygous recessive [q2] | Number of responders |
| 1. | Ear wax | ||||
| 2. | Widows peak | ||||
| 3. | Hair whirl | ||||
| 4. | Ear lobe | ||||
| 5. | Cleft chin | ||||
| 6. | Freckles |
Show your calculations below
| #1 | |
| #2 | |
| #3 | |
| #4 | |
| #5 | |
| #6 |
7. DNA duplication
TAT GCA CTA ATA TAT GCA [triplets]
____ ____ ____ ____ _____ ____ [triplets]
Protein synthesis, please continue from the line you have created by copying 1st DNA strand above. You will need to continue from the 2nd line [question # 7] and convert it into codons [question #8] and anti-codons [question #9].
8. ____ ____ ____ ____ _____ ____ [codons]
9. ____ ____ ____ ____ _____ ____ [ anti – codons]
10. Please circle appropriate answers.
A color-blind man has a son with a color-blind female. Will their son be colorblind? YES NO
What is a chance that their son will not be colorblind? __________ % Please explain: ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________