Name:__________________________ Date: ____________Period:_____ Agenda Week of 26 Jan – 30 Jan 2009 Unit 4 Genetics-Heredity Exam 2/12-13/09 Class website: www.marric.us/teaching Monday 1/26/09 Mystery Gene Review and Collect Collect Genetic Prac Prob #3 Ch 11 ppt Genetics Prac Prob #5 Blood Typing HW: Genetics Problems #5 due Wed Chapter 11 Sci Notebook due 2?2 Tuesday 1/27/09 (2:30-4 LEAP) - Unit 4 Quiz 3 - Study guide - Ch11 ppt/Questions re blood typing HW: HW: Genetics Problems #5 Wednesday 1/28/09 –Late Start Genetic Prac Prob #6 Sex-linked HW: Overview vocabulary /SG due 2/5/09 Thursday 1/29/09 – Block Day - Ch 11 ppt - Karyotyping Lab – if scissors available - Pedigree Project HW: Rewrite /finish Pedigrees and Ch 11 Sci Notebook due Monday 2/2 Friday 1/30/09 – Block Day - Ch 11 ppt - Karyotyping Lab – if scissors available - Pedigree Project HW: Rewrite /finish Pedigrees and Ch 11 Sci Notebook due Monday 2/2 Parents/Guardian – I have reviewed my child’s activities and homework for the week of 1/24/09 – 1/30/09. I understand that is important for me to make sure that my child is studying to be prepared for the Quiz on 1/27/09 and has completed all assignments this week. On Feb 3 and 4(Tues and Wed) 10th graders will take the CA Exit Exam for graduation. Parent/Guardian Printed Name Unit 4 Quiz 4 Feb 5/6 Vocab Review Matching A man with a certain syndrome marries a woman who is normal for that trait. They have 6 children, three girls and three boys. All of the girls have the same syndrome as the father whereas none of the boys is affected. Which type of heredity is not possible here? 2. Given that the dominance hierarchy of rabbit fur color alleles is C > Cch > Ch, from grey to chinchilla to Himalayan, respectively, what would be the percentage of Himalayan colored rabbits from parents with C Ch and Cch Ch? 3. A cross between a white rooster and a black hen results in 100% blue Andalusian offspring. When two of these blue offspring are mated, the probable phenotypic ratio seen in their offspring would be: 4. In mice, black is dominant to white color and color is determined by a single gene. Two black mice are crossed. They produce 2 black offspring and one white offspring. If the white offspring is crossed with one of its parents, what percent of the offspring are expected to be white? 5. A diploid cell with two homologous pairs of chromosomes. Due to independent assortment, the possible allelic combinations that could be found in gametes produced by the meiotic division of this cell are ____. 6. Suppose an animal is heterozygous AaBbCc, and the traits are not linked. When meiosis occurs, what is the total number of possible combinations of gametes that can be made for these traits? List for EC In which situation are the phenotypes of F2 offspring expected to follow the ratio of 9:3:3:1 Signature Date Bell Ringers: Week of 26 Jan – 30 Jan 2009 Monday – What is an advantage of sexual reproduction over asexual reproduction? a) It allows for rapid reproduction. b) It takes advantage of desirable environmental conditions. c) It improves a species' ability to evolve. d) It produces offspring genetically identical to the parent. Why is it important for the cells of multi-cellular organisms to undergo mitosis? a) Mitosis allows for reproduction with male and female gametes. b) Mitosis increases variation within an organism. c) Mitosis produces cells that are different from the original dividing cell. d) Mitosis produces identical cells to the original dividing cell. Explain the difference between asexual and sexual reproduction. Tuesday - Deer share the open plains with other grazing animals and predators. Which of the following would lead to a decrease in the deer population? a) b) c) d) a reduction in the predator population. an increase in the number of other grazing animals. a reduction in the grazing animal population. an increase in restrictions on the hunting of deer. Wednesday – Mutations that are lethal in homozygous individuals can survive in a population by being carried by ______________________________. a. codominant individuals. c. homozygous dominant individuals. b. heterozygous individuals. d. homozygous recessive individuals. Explain Thursday Fur color in cats is controlled by an autosomal gene that can occur in the dominant form, (B) or the recessive form (b). The length of the cats’ fur is controlled by another autosomal gene which occurs in the dominant form (S), or the recessive form, (s). The table shows the traits for these traits for which these alleles code. The following genotypes were found in a male cat (BbSs) and a female cat (bbSS) that mated. Which one of the following choices is true of the phenotype of offspring from these parents? a) b) c) d) All All All All offspring offspring offspring offspring will will will will have black fur have white fur have long-haired fur have short-haired fur Friday What phase of meiosis would you expect to see these structures? Explain Gene B b S s Trait Black fur White fur Short- haired fur Long – haired fur