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This is JEOPARDY! Genetics Watson 2001 Procedures for Today Categories’ levels have certain point values Higher point values are generally more difficult questions You MUST state your response in the form of a QUESTION ????????????????????????????????? Watson 2001 Genetics Way back when… What’s that called? Mutants Chromosomes Dominate! 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 Watson 2001 Hippocrates idea of body particles making up gametes Question Watson 2001 . What is pangenensis? Watson 2001 An early 19th century belief that traits blend together Question Watson 2001 . What is the Blending Hypothesis? Watson 2001 An Austrian monk that studied inherited traits in peas Question Watson 2001 . Who is Gregor Mendel Watson 2001 Gregor Mendel’s hybrid crosses of peas revealed traits that seemed to dominate, leading him to develop this “principle.” Question Watson 2001 . What is the Principle of Dominance/Recessiveness? Watson 2001 What disproves the Blending Hypothesis Question Watson 2001 . What is recessive traits reappearing? Watson 2001 The first, or parent generation Question Watson 2001 . What is P generation? Watson 2001 What identical alleles are called Question Watson 2001 . What is Homozygous? Watson 2001 Eggs and sperm, for example Question Watson 2001 . What are gametes? Watson 2001 Alternate forms of the same gene Question Watson 2001 . What are alleles? Watson 2001 A pair: two different alleles for the same gene Question Watson 2001 . What is heterozygous? Watson 2001 Change in a single gene Question Watson 2001 . What is gene mutation? Watson 2001 Change in a whole chromosome Question Watson 2001 . What is a chromosomal mutation? Watson 2001 Part of a chromosome is missing Question Watson 2001 . What is a deletion? Watson 2001 Part of a chromosome is reversed. Question Watson 2001 . What is an inversion? Watson 2001 When two of these exchange portions, a translocation occurs Question Watson 2001 . What are non-homologous chromosomes? Watson 2001 An arrangement of chromosomes in a particular order, used for study Question Watson 2001 . What is a karyotype? Watson 2001 The 1st 22 pairs of chromosomes Question Watson 2001 . What are autosomes? Watson 2001 Examples of the 23rd pair of chromosomes Question Watson 2001 . What are X and y? Watson 2001 Daily Double What is your wager? Watson 2001 Part of a chromosome that codes for a particular trait Question Watson 2001 . What is a gene? Watson 2001 The stage in which a karyotype is photographed Question Watson 2001 . What is prophase? Watson 2001 When one allele’s traits can show, hiding another allele’s traits Question Watson 2001 . What is dominant/recessive? Watson 2001 Both alleles in a heterozygote can be partially expressed Question Watson 2001 . What is incomplete dominance? Watson 2001 The type dominance that allows the offspring of a white cow and a red bull to have a white/red haired calf (roan) Question Watson 2001 . What is codominance? Watson 2001 The only arrangement by which recessive alleles are expressed Question Watson 2001 . What is homozygous recessive? Watson 2001 The incomplete dominant color of F1 when P = Red (RR) x White (WW) Question Watson 2001 . What is pink? Watson 2001 Double Jeopardy BLOOD Sex-linking Cross me once Cross me twice Oh-oh 200 200 200 200 200 400 400 400 400 400 600 600 600 600 600 800 800 800 800 800 1000 1000 1000 1000 1000 Watson 2001 The human alleles for blood Question Watson 2001 . What are IA, IB, and i ? Watson 2001 Carbo/protein molecules found on cells; can make an immune response occur Question Watson 2001 . What are antigens? Watson 2001 A protein molecule that hunts for a particular antigen Question Watson 2001 . What is an antibody? Watson 2001 The universal blood recipient type Question Watson 2001 . What is type AB? Watson 2001 The type dominance found in IA and IB blood alleles Question Watson 2001 . What is codominance? Watson 2001 Where sex linked diseases’ alleles are found Question Watson 2001 . What is the X chromosome? Watson 2001 A non-sex chromosome Question Watson 2001 . What is An autosome? Watson 2001 X – linked Dominant mutation (definition) Question Watson 2001 . What is a mutation on the X chromosome that is dominantly expressed? Watson 2001 Examples of sex-linked disorders Question Watson 2001 . What are hemophilia and colorblindness? Watson 2001 The % of male children that will have hemophilia if dad is normal and mom is a carrier Question Watson 2001 . What is 50%? Watson 2001 When only one trait is studied in a hybrid cross Question Watson 2001 . What is a monohybrid? Watson 2001 A tool used to determine F1 genotypes Question Watson 2001 . What is a Punnett square? Watson 2001 What the expressed traits of an organism is called Question Watson 2001 . What is a phenotype? Watson 2001 The phenotypic ratio of the F1, when P = TT x tt Question Watson 2001 . What is 1:0? Watson 2001 The phenotypic ratio of the F1, when P = Tt x Tt Question Watson 2001 . What is 3:1? Watson 2001 When two traits observed in a cross Question Watson 2001 . What is a dihybrid? Watson 2001 T=tall, t=short, G=green, g=yellow The genotype of a fully heterozygous plant Question Watson 2001 . What is TtGg? Watson 2001 The possible gametes that could be formed from TtGg Question Watson 2001 . What are TG, Tg, tG, and tg? Watson 2001 Daily Double What is your wager? Watson 2001 The phenotypic ratio of the cross of two fully heterozygous dihybrids Question Watson 2001 . What is 9:3:3:1? Watson 2001 The genotypic ratio of the cross of two fully heterozygous dihybrids Question Watson 2001 . What is 1:2:1:2:4:2:1:2:1? Watson 2001 Used as a tool to show all the known phenotypes of an organism and its ancestors Question Watson 2001 . What is a pedigree? Watson 2001 Can occur in Meiosis I or II, where the wrong number of chromosomes are separated during anaphase Question Watson 2001 . What is nondisjunction? Watson 2001 The meaning of 47,+21 (Downs syndrome) Question Watson 2001 . What is 47 chromosomes, having an extra 21st chromosome? Watson 2001 How Trisomy x is written Question Watson 2001 . What is 47, XXX? Watson 2001 When “n” is a normal haploid number, it’s the notation used when a gamete has one more chromosome than it should have Question Watson 2001 . What is n + 1? Watson 2001 Final Jeopardy What is your wager? Write you name and wager on a piece of paper and we will come around and collect them. Watson 2001 Question for Final Jeopardy How many genotypes are formed in the F1 generation when you cross the parents TtGg x ttgg? Watson 2001 Answer for Final Jeopardy TtGg x ttgg tg TG Tg tG tg TtGg Ttgg ttGg ttgg FOUR Watson 2001