honors genetics
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.
Activities:
1. Notes: Chromosomal mutation 2. Test review HW: STUDY! Have you completed your unit vocabulary? Your unit summary? Are all your assignments complete?
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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? No warm-up.
1. Complex inheritance notes part 3 2. Work in computer lab for disease questions. HW: 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? 1. Quiz 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 Achondroplasia Amyotrophic Lateral Sclerosis (ALS or Lou Gherig’s disease) Autosomal Dominant Polycystic Kidney Disease Charcot-Marie-Tooth Cri du Chat Crohn’s disease Cystic Fibrosis Dercum Disease Down Syndrome Duchenne Muscular Dystrophy Fragile X Syndrome Gaucher Disease Hemophilia Huntington’s Disease Juvenile Arthritis Juvenile Diabetes Klinefelter syndrome Lupus erythematosus Marfan Syndrome Multiple Sclerosis Myasthenia gravis Phenylketonuria (PKU) Retinoblastoma Scoliosis Sickle Cell Disease Tay-Sachs Thalassemia Treacher-Collins syndrome Turner Syndrome Celiac disease Neurofibromatosis Osteogenesis Imperfecta Pompe Disease Von Willebrand Disease Galactosemia XXX Syndrome Williams Syndrome Breast Cancer Ovarian Cancer Colon Cancer Alzheimer’s Disease Parkinson’s Disease Hemochromatosis Alpers disease (mitochondrial) Lactic acidosis (mitochondrial) Progeria Spina Bifida Edward’s Syndrome Patau Syndrome Warm-up 2:
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 Warm-up 1:
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 |
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December 2019
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