APRIL 13 TH, 2015 ANNOUNCEMENTS: Sapling Chap 6: 4/17, Ecol #12-13 due Apr 20 Homework: Sex-linked Worksheet, Autosomal Disord. Poster Turn in: Missing Assignments, #9 and 10 NOT 11 On your desk: WUs, Chap 7 NB, Symbiosis Foldable Warm-up (#2): Compare and contrast commensalism, mutualism, and parasitism. Done? Study PQ28 Agenda: PQ28, WU/Foldable, Chap 7.1 Notes/Apply, HW EQ(s): How do complex patterns of inheritance defy Mendel’s rules? 4/10/2015 Accel Bio: P2

FOLDABLE/WARMUP: COMPARE AND CONTRAST COMMENSALISM, MUTUALISM, AND PARASITISM. Commensalism – ecological relationship where one benefits and the other is neither harmed nor benefited. Mutualism – interspecies interaction where both benefit. Parasitism – relationship similar to predation. One benefits and one is harmed. Different than predation because parasite keeps host alive for some time before host is no longer needed and killed. 4/10/2015

ECOLOGY PROJECTS Turned in #9 and #10  (Examples of competition, define predator/prey) KEEP #11 (Symbiosis Foldable we just went over with warmup) Handouts #12 and #13  Directions on how to make and complete Succession and Quality Foldable(s).  #12 and #13 Foldables DUE APRIL 20th 4/10/2015

AUTOSOMAL WANTED POSTER  Choose a disorder  Determine if the disorder is sex-linked or autosomal  Determine if the disease is autosomal dominant or recessive  What does autosomal dominant or recessive mean?  Find out on which chromosome(s) the disorder can be found  Include a picture of the chromosome  Can be drawn or printed  Find out the location of the disorder on the chromosome. The gene locus  Describe the symptoms of the disorder 4/10/2015

SECTION 7.1 Chromosomes and Phenotype 4/10/2015 EQ: How do complex patterns of inheritance defy Mendel’s rules? Page 18

MALES AND FEMALES CAN DIFFER IN SEX- LINKED TRAITS Sex-Linked genes  genes that are located on the sex chromosomes. Remember** males sex chromosomes are XY and female sex chromosomes are XX Genes on the Y chromosome give a male his male characteristics Genes on the X chromosome control many more characteristics in both males and females 4/10/2015

MOST SEX-LINKED DISORDERS ARE FOUND ON THE X CHROMOSOME. A few are known to be found on the Y chromosome. Who would be affected by X linked disorders? Who would be affected by Y linked disorders? Discuss with your seat partner: Why are men more affected by sex-linked disorders? 4/10/2015

X CHROMOSOME INACTIVATION X Chromosome Inactivation  in each cell of female mammals, one of the two X chromosomes randomly gets “turned off” Because of X Chromosome inactivation, females are a patchwork of 2 cell types One type has an active X chromosome that came from their mother One type has an active X chromosome that came from their father 4/10/2015

XO = Orange Fur Xo = Black fur allele Female calico cat have two chromosomes with different alleles for fur color. Both alleles are expressed in a random pattern. The male cat only has one X chromosome, and its allele for fur color is expressed across the entire body. The splotches of color in female cats is determined by the amount of time the X chromosome is inactivated (turned off), during embryonic development. 4/10/2015 Discuss with your seat partner: Why don’t the male calico cats have spots? How are the spots occurring?

PAGE 17 APPLY Part A: Complete the Punnett Square and answer the guided questions. Part B: Determine the genotype for each scenario. Make sure to use the letters that represent the disorder in the scenario. 03/26/2015

SEX-LINKED TRAITS WORKSHEET #1 4/10/2015

SEX-LINKED TRAITS WORKSHEET Complete numbers 2-12 for homework. Remember: 1. Define Alleles 2. Parent cross if not given in ____X____ form 3. Complete Punnett 4. Genotype and Phenotype info for offspring 03/26/2015

AICARDI SYNDROME Read the article on Aicardi syndrome. Complete a 10% summary of the article. 4/10/2015

EXIT TICKET: TYPE 1 WRITING Type 1: In at least 10 lines, compare and contrast sex-linked and autosomal disorders. Hints: Are there any special circumstances that defy Mendel’s rules? Where are the genes for each of the disorders found? What genotypes or alleles must be present for the offspring to have the disorder? 03/26/2015

In at least 5 sentence, explain how x- linked disorders and y-linked disorders affect males and/or females Remember** males sex chromosomes are XY and female sex chromosomes are XX Genes on the Y chromosome give a male his male characteristics Genes on the X chromosome control many more characteristics in both males and females 4/10/2015