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    Allele and Probability

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    she receives both recessive alleles. This is not always the case. For example‚ Huntington’s disease only requires one dominant gene for an individual to contract the disease. Suppose that a husband and wife‚ who both have a dominant Huntington’s disease allele (S) and a normal recessive allele (s)‚ decide to have a child. (a) List the possible genotypes of their offspring. (a) Sample space is {SS‚Ss‚sS‚ss} where S=dominant disease allele and s=normal recessive allele (b) What is the probability

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    Allele Frequencies

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    Allele Frequencies in Populations: Hardy-Weinberg Law Assumptions Already Made (Can’t Control) 1) Population Size 2) Mutation 3) Natural Selection 4) Immigration/emmigration 5) Non-random mate choice Can Control 1) Population Size 2) Natural Selection Control Variable Left side Experimental Variable Right Side Comparisons are most meaningful when there is only ONE difference between populations For this experiment only the population size should be different and everything else should

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    is independent of the dominance of the corresponding allele. In other words‚ the phenotype that has the higher allele frequency will be more abundant in the population. e. Newlyweds Bill and Sue are non-freckled. Since each had one parent who had freckles‚ they wonder what the possibility is of their children having freckles. What would you tell them? i. The two newlyweds have the recessive phenotypes (ff); that is‚ there are no dominant alleles in their genotypic constitution. Consequently‚ the possibility

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    Calculation of Allele and Genotype Frequencies & Hardy-Weinberg Equilibrium Theory INTRODUCTION Population geneticists study frequencies of genotypes and alleles within populations rather than the ratios of phenotypes that Mendelian geneticists use. By comparing these frequencies with those predicted by null models that assume no evolutionary mechanisms are acting within populations‚ they draw conclusions regarding the evolutionary forces in operation. In a constant environment‚ genes will continue

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    The Allele Frequency Research on the Use of Right hand v.s Left hand at Southwest CTA Skylar Smith Jordan Stotts Kaley Felix Ana Charvet Southwest CTA Biology 9H p.6 February 13‚ 2014 __________________________________________________________________________ Abstract A gene can be defines as the basic physical unit of heredity; a linear sequence of nucleotides along a segment of DNA that provides the coded instructions for synthesis of RNA‚ which‚ when translated

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    Kai Morson Matt Cring SCI 200: Changes in the World Friday 19th October 2012 The investigation of ABO allele population within Country of St. Thomas Introduction Everyone always worry about what his or her blood type may be or which blood type is more predominant and what race that creates such high frequencies. The objective associated with this lab will compare these allele frequencies from different sample groups such as St. Thomas Black to that of USA‚ St. Thomas Black to that of the

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    connected by three hydrogen bonds. In DNA‚ two DNA strands coil together to create a double-helix‚ this is where base pairing occurs between the two strands when hydrogenous bonds are created between two bases. Genes also have variants‚ which are called alleles‚ which play a large part in the inheritance of genes via

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    intellectual property. It does not contain the ideas‚ or writing of other individuals/authors. Author ___________________________ Date ___________________ Lab Instructor ____________________ Lab Section # ____________ The Change in Allele Frequency of the Male Cichlid Fish Population General Research Question: Lake Malawi’s cichlid male population of fish are tested on their ability to build bowers to attract the female population. Altering this extended phenotype‚ or ability

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    FLASHCARD DATA FOR BASIC PRINCIPLES OF GENETICS Topic 1: Mendel’s Genetics | 1. |Offspring that are the result of mating between two genetically different kinds of parents--the opposite of purebred. |hybrid | | 2. |The study of gene structure and action and the patterns of inheritance of traits from parent to offspring.  This is the branch |genetics | | |of science that deals with the inheritance of biological characteristics.

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    biology review

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    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 the heterozygotes and homozygous recessive individuals

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    BIOL 1209 WA 1

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    or writing of other individuals/authors. Author ___________________________ Date ___________________ Lab Instructor ____________________ Lab Section # ____________ General Research Question: How does the change in the alleles affect the pigment in the alligators; which also affects the fitness of the animal? Animals fight for survival daily‚ and sometimes their lives depend on their ability to adapt with their surrounding environments. Natural Selection is the process

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    Quizlet 19

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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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    Pedigree Charts

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    chromosome linked dominant or recessive‚ Y- chromosome linked or not. Explanation 1. Autosome Linked Dominant traits: These are the traits whose encoding gene is present on any one of the autosomes‚ and the wildtype allele is recessive to its mutant allele‚ i.e.‚ the mutant allele is dominant. The pedigree-chart can be of the undernoted pattern (Fig. 11.2)‚ where the female being interviewed is exhibiting the trait‚ and is indicated by an arrow-mark in the chart. The characteristic features

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    gene worksheet

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    each pair of homologous chromosomes. The alleles may be identical or different. (2)____Homozygous__________- when both alleles in a homologous chromosome pair have the same expression. Example: both alleles code for straight hairline at forehead. (3)______Heterozygous__________- when the alleles differ in their expression. Example: one allele codes for straight hairline and the other for widow’s peak. (4)______Dominant_________- in a heterozygous pair of alleles‚ it is the one that exerts its effects

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    Dihyrbid Cross

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    Dihybrid Cross Worksheet 1. Set up a punnett square using the following information: • • • • • Dominate allele for tall plants = D Recessive allele for dwarf plants = d Dominate allele for purple flowers = W Recessive allele for white flowers = w Cross a homozygous dominate parent (DDWW) with a homozygous recessive parent (ddww) 2. Using the punnett square in question #1: a. What is the probability of producing tall plants with purple flowers? Possible genotype(s)? b. What is the probability of

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    my dog

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    relationship between the following pairs of genetic terms: A. Gene and trait: B. Gene and chromosome: C. Allele and gene: D. DNA sequence and amino acid sequence: Q3. For each of the following terms in the left column‚ choose the best matching phrase in the right column. a. phenotype 1. Having two identical alleles of a given gene b. alleles 2. The allele expressed in the phenotype of the heterozygote. c. independent assortment 3. Alternate forms of a gene.

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    hardy

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    and circle your answers. 1) If the frequency of a recessive allele is 30% in a population of 100 people‚ how many would you predict would be carriers of this allele‚ but would not express the recessive phenotype? q= 0.30 p= 0.70 Carriers = 2pq = 2(.3)(.7) = .42 #= (.42)(100) = 42 individuals 2) From a sample of 278 American Indians‚ the following MN blood types were obtained: MM = 78‚ MN = 139‚ NN = 61. Calculate the allele frequency of M and N. M= 0.53 N= 0.47 MM = 78/278 = 0.281

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    Hypothesis of Heredity

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    generation • Leading to the law of segregation o Alternative versions of genes (alleles) account for variations in inherited characteristics. o For each character‚ an organism inherits 2 alleles‚ one from each parent. o If the two alleles differ‚ then one‚ the dominant allele‚ is fully expressed in the organism’s appearance‚ the other‚ the recessive allele‚ has no noticeable affect on the organism’s appearance. o The alleles for each character segregate (separate) during gamete production (meiosis)

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    Study Guyide

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    Biology: Concepts and Connections‚ 6e (Campbell) Chapter 9 Patterns of Inheritance Multiple-Choice Questions 1) Which of the following statements regarding domestic dogs is false? A) Dogs originated in East Asia. B) Dogs of different breeds can be identified through genetic analysis. C) Shar-pei and Akita are genetically very similar to the wolf. D) All dogs are descended from wolves. E) Humans have bred dogs for thousands of years. Answer: D Topic: Opening Essay Skill:

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    Fly Lab Report

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    plants were homozygous and both parent pea plants had two identical alleles. The plants in F1 generation were all heterozygous with two different alleles‚ one from each parent. This part can be understood more clearly by looking at the genotypes instead of only the phenotype. Mendel also discovered that one trait is dominant over the other trait. However‚ the dominant allele does not alter the recessive allele in any way and both alleles can be passed on to the next generation unchanged. These experiments

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