Genetics: Plant Breeding and Selection – Lab Report Assistant Exercise 1: A Monohybrid Cross Data Table 1. Monohybrid Punnett Square (F2 generation) F2 Generation Parent 1 __ __ Parent 2 __ __ Data Table 2. Expected and Observed Phenotypic Values for the Monohybrid Cross Green Albino Total Expected Observed Data Table 3: Photograph of Germinated Seeds Photograph: Data Table 4: Chi-square Values for the Monohybrid Cross Values: Answers: Chi-square value Degrees of freedom P-value Questions:
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was not the first to experiment with heredity‚ and our Lyman Briggs biology class will not be the last to deal with genetics. Genetics is the science of heredity. In our lab‚ we had three main objectives. First‚ we evaluated our data on monohybrid and dihybrid corn cross seed counts against Mendel ’s theoretical expectations of independent assortment and the segregation of alleles. Next‚ we used the Hardy-Weinberg Theorem to provide a theoretically expected value for allele frequencies for single
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Six male and female adult flies from the F1 generation were placed into the new vials and identified according to the initial P1 crosses and labeled for F1 cross. 19. The failed cross 4 white mutant‚ yellow mutant dihybrid cross was replaced with a dihybrid cross from another lab group and the data for that cross is listed in table 3 as cross 4b. Day 22: 20. Adult flies from the F1 generation were removed from the vials and the F2 generation remained in the culture medium. Day
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flies are ready to mate and produce the next generation of Drosophila melanogaster. During this experiment‚ monohybrid and dihybrid crosses were conducted with Drosophila melanogaster. Our objective was to examine the inheritance from one generation to the next. We collected the data from the crosses and analyzed them in relation to the expected results. MATERIALS AND METHODS For the monohybrid cross in this experiment‚ we used an F1 generation‚ which resulted from the mating of a male homozygous
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recessive. To show this‚ we are using tobacco seeds‚ a monohybrid cross comparing only one trait color. We are also showing Mendel’s law of segregation with a Dihybrid cross comparing two traits of color and texture. Introduction Three purposes: 1. To predict the genetic frequency off offspring. 2. To predict the outcomes of genetic crosses using punnett squares. 3. Statistically analyze the results of a genetic cross. Hypothesis: 1. Monohybrid cross—Predict that 75% of the tobacco seeds will sprout
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main test crosses used are a monohybrid cross and dihybrid cross. Monohybrid meaning “one” is the simplest mating between true-breeding individuals from two parental organisms‚ each displaying one of the two distinct traits of the solo trait under consideration. A dihybrid cross is when two pairs of contrasting traits are studied at the same. Both crosses produce distinctive phenotypic ratios in the second generation (F2) of an offspring. The second generation‚ a monohybrid cross usually shows a 3:1
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Recognition of Patterns of Trait Inheritance in Plant Hybridization: Pisum sativum Daylan Hartranft‚ student Bachelor of Science in Biology Key words: Pea plant‚ Monohybrid‚ Dihybrid‚ Independent assortment‚ Dominant‚ Recessive Running title: Patterns of Inheritance # Figures: 3 # Tables: 2 Correspondence to: Daylan Hartranft Introduction Plants have noticeable trait inheritance; however‚ the method of transmission is unknown. Understanding this would allow creation
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this study by observing the asci produced from monohybrid and dihybrid crosses with observance to recombination. This experiment performed extended over a three week period. The strains that were used from S. fimicola were wild type producing black‚ and mutants producing grey and tan strains. There are seven possible phenotypes as a result from second division segregations through the dihybrid crosses. Map units were found through results of the monohybrid cross. Expected map unit results are 33 mu for
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Punnett squares on the Lab Report. Answer the questions below. When you are finished‚ submit this assignment to your teacher by the due date for full credit. Part 1: Monohybrid Cross—Predicting Freckles in an F1 Generation Apply your understanding of how alleles assort and combine during reproduction to evaluate a scenario involving a monohybrid cross. The allele for having freckles (F) is dominant over the allele for not having freckles (f). Some characteristics in people are inherited as simple dominant
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Brilliant Law: Seg…” text + figures Monohybrid Cross 4 Explain the phrase “dihybrid cross” and state Mendel’s Principle of Independent Assortment. Ch. 12.6: “A Brilliant Law: Indep…” text + figures 5 Explain the phenomena of codominance‚ incomplete dominance and epistasis in terms of Mendel’s alleles at one or more loci. Ch. 12.6: “Brilliant Laws: Var…” text + figures 6 Apply Mendel’s principles to genetic problems that involve monohybrid and dihybrid crosses. Ch. 12.6: “A Brilliant
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