What did we do in class today?
Warm-ups (there are 2):
1. Use the data below to draw a linkage map of the genes listed.
2. You are investigating inheritance of certain traits. You perform two crosses. The results of the crosses are below. Calculate the expected outcomes of each cross. Which of the genes is likely linked? Explain your reasoning.
1. Notes: Chromosomal mutation
2. Test review
Have you completed your unit vocabulary? Your unit summary? Are all your assignments complete?
Warm-up: What do you think it means for genes to be linked?
1. Genetic linkage
2. Practice gene mapping
HW: Have you completed your unit vocabulary? Your unit summary? Are all your assignments complete?
1. Complex inheritance notes part 3
2. Work in computer lab for disease questions.
Genetic Disease Research Questions due next Wednesday, October 31
Warm-up 4: Show your work for the cross below-
In sweet peas, the two allele pairs C, c and P, p are known to affect pigment formation in the flowers. The dominants, C&P, are both necessary for colored flowers. Absence of either results in white flowers. A dihybrid plant is crossed to a white one which is heterozygous at the “C” locus.
1. Complete karyotype lab
2. Computer lab for project
Pick up phone bags from mailbox. Sit in quiz seats. Study for quiz.
After quiz warm-up: Describe how karyotypes are constructed. Why do we use karyotypes in genetics?
2. Finish door decorations.
3. Karyotype building lab
HW: From the list below, do a quick search about THREE of the disorders/diseases listed. Write short notes and be prepared to discuss which disorder you would like to research for our project.
GENETICS PROJECT: DISORDER LIST
Amyotrophic Lateral Sclerosis (ALS or Lou Gherig’s disease)
Autosomal Dominant Polycystic Kidney Disease
Cri du Chat
Duchenne Muscular Dystrophy
Fragile X Syndrome
Sickle Cell Disease
Von Willebrand Disease
Alpers disease (mitochondrial)
Lactic acidosis (mitochondrial)
What offspring phenotypic ratios would you expect to observe in the following cases?
Solve, show your work, and identify the inheritance type.
a) Dominant green skin, recessive red skin- Aa x Aa
b) Red flower (AA), white flower (A'A'), pink flower (AA')- AA' x AA'
c) Black chicken (BB), white chicken (WW), checkered chicken (BW)- BW x BW
1. Notes: Complex inheritance
2. Practice and note cards
A man has AB blood and his wife is heterozygous for A blood. Show the punnett square for this cross. Can they have children with O blood? Explain.
1. Epistasis and lethal alleles
2. Practice problems
No warm-up: Study for quiz
1. Vocab and punnett square quiz
2. Introduce tri-hybrid crosses
3. Tri-hybrid cross practice
Warm-up: Complete problem 1 about wooly, spotted people on the next page in your practice problems packet.
Computer lab for online activity