QUESTIONS 1. According to the Hardy-Weinberg theorem‚ p + q 1 and p2 + 2pq + q2 1. What does each of these formulas mean‚ and how are the formulas derived? p + q 1: If you add all the dominant alleles for a gene to all the recessive alleles for the gene‚ you get all of the alleles for that gene‚ or 100% of the alleles for the gene. (Note: This assumes the gene has only two alleles.) p2 + 2pq + q2 1: If you combine all the individuals that are homozygous dominant for a gene with all
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A Roman Catholic monk‚ Gregor Mendel (1822-1884)‚ was raised on a farm and enjoyed gardening and mathematics. In 1856 he started to experiment with pea plants to explain why certain traits that appeared in one generation did not always reappear in the next generation. During eight years Mendel mixed over 30‚000 plants by controlling their pollination and wanted to know why the results came to be. Mendel noticed that although there were some traits that were common amongst all the pea plants there
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Name: ______________________________________________________ Period:_____ Chapter Review: 10 Mendel & Meiosis College Biology 1. An organism that is true breeding for a trait is said to be (a) homozygous (b) heterozygous (c) a monohybrid (d) a dihybrid 2. At the end of meiosis‚ how many haploid cells have been formed from the original cell? (a) one (b) two (c) three (d) four 3. When Mendel transferred pollen from one pea plant to another‚ he was ___ the plants. (a) self pollinating
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Mating System I Fun with Nonrandom Mating: Our Topics • • • • • • Classification of mating systems Definitions Consequences of inbreeding Inbreeding in pedigrees Regular systems of inbreeding Estimation of mating system parameters Classification of Mating Systems • Random mating • Assortative mating . . . may be: – Phenotypic or genotypic – Positive or negative (disassortative) • Inbreeding – Mating among relatives (more frequently than would occur at random) – Special type of genotypic
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GENETICS JARGON Alleles (allelomorphs) Alternative forms of a particular gene. There can be several alleles of a particular gene in the population‚ but only 2 alleles can be inherited by a single individual. For simplicity much literature aimed at the general reader uses "gene" where it means "allele". Allelic Series A series of alleles that are all mutant forms of the same gene and are at the same locus (same position on the chromsome). Alternate Heredity Mendelian inheritance involving
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Virtual Lab: Punnett Squares Worksheet Part I: Answer the following questions: 1. Which of the following is most inclusive? a. allele b. genotype 2. Dominant alleles are represented by: a. an upper case letter b. a lower case letter c. it does not matter what type of letter is used 3. In fruit flies‚ gray body color is dominant over black body color. Using the letter G to represent body color‚ what is the genotype of a heterozygous gray bodied fly? a.
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1. Alleles are different versions of the same gene and one may be dominant to the other. –TRUE 2. In a dihybrid cross of a mother and father who are both heterozygous dominant for chin fissures and dimples‚ what would be the phenotypic ratio of chin fissures and dimples in their offspring? –-9:3:3:1 3. If two alleles are heterozygous‚ it means they are the same allele. --FALSE 4. If the letter ""C"" stands for the dominant allele for having a chin fissue and the letter ""c"" stands for the recessive
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Chapter 1 Question 1 Not yet answered Marked out of 1 Flag question Question text Theories are vital tools because they Select one: A. provide organizing frameworks for observing children. B. provide the ultimate truth about child development. C. do not require scientific verification. D. are resistant to the influence of cultural values and belief systems. Question 2 Not yet answered Marked out of 1 Flag question Question text Reid believes that the difference between the immature being and the
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Procedure for Case Study 1-Random Mating You will start by placing 75 light-colored beans and 25 dark-colored beans into a bag. The 100 beans represent your initial gene pool. The light beans represent the F alleles‚ and the dark beans represent the f alleles. This is the gene pool produced by mating between heterozygous (Ff) and homozygous normal (FF) individuals. Use the following to determine the number of dominant alleles in the population and the same formula to determine the number of recessive
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PCB 3063 Spring 2012 Problem Set 1 ANSWERS 1. Determine the types of gametes produced by each of the following individuals: a. Aa 1/2 A‚ 1/2 a b. AaBb 1/4 AB‚ 1/4 Ab‚ 1/4 aB‚ 1/4 ab c. AABb 1/2 AB‚ 1/ Ab d. AaBBCc 1/4 ABC‚ 1/4 aBC‚ 1/4 ABc‚ 1/4 aBc 2. Use the Punnett square to determine the genotypes in the progeny of each of the following crosses: a. Dd x Dd b. AaBB x AaBB c. CcEE x CCEe Notice: in every case‚ each parent produces
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