Monohybrid Cross Hypothesis - Kernel cobs with different traits were counted. e.g in this experiment coloured and colourless. If the results obtained is close enough to the expected ratio to be acceptable as a significant result. (Observed results fit the expected results) Alternative hypothesis - If the observed data does not fit the expected data the results obtained were not significant. (Ratio observed are so far off the ratios expected) Genetic diagram A = Coloured allele. a = Colourless allele
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Problem Set – Monohybrid and Dihybrid Cross 1. Classical albinism results from a recessive allele. What is the expected offspring from a normally pigmented male with an albino father and an albino wife? 2. A pea plant with red flowers is test crossed and one half of the resulting progeny have red flowers‚ while the other half has white flowers. What is the genotype of the test crossed parent? 3. If we cross two pea plants each heterozygous for yellow seed color genes‚ what would be the
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The model that is being studied is in a domestic pest that may be found throughout decaying food. The topic that is being examined is the Drosophila. When Drosophila is prepared for mating or hatching‚ they have a full lifecycle of about 20 days‚ thus are the models for relating sex-linked inheritance. Obviously it is not the breeding ways of the Drosophila that is being examined in this experiment‚ but the developing offspring‚ and their phenotypes. The phenotype is based on the wing shape and
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Effects of Alcohol on Drosophila Behavior Your Name Bio1100 Instructor: Dr. Gary Bulla Section 6 11/14/02 Notes: Title should be descriptive but concise‚ containing some key words Title page should include only the information shown here Use no smaller than 12 pt font Capitalize words in title (except “of”‚ “the”‚ “in”‚ ……..) ABSTRACT (Capitalized with bold face‚ underline or all caps) A simple summary of the important points of the paper. Usually a 1-2 paragraphs. It includes the
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Lab#3 Mendelian Inheritance in Drosophila Lab Report 1 In this experiment we are investigating the strength of the ratios discovered by Gregor Mendel in both the monohybrid and dihybrid cross. The ability to test these ratios stems from the use of Mendel’s law of segregation which states that during meiosis allele pairs will separate in gametes so one of each allele is present in a gamete. (Garey‚ et al‚pg 8-13) These single alleles are then combined with the other parental gamete forming
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Drosophila melanogaster - Sex linkage and inheritance of genes through cross breeding Abstract This experiment looks at the relationship between genes‚ generations of a population and if genes are carried from one generation to another. By studying Drosophila melanogaster‚ starting with a parent group we crossed a variety of flies and observe the characteristics of the F1 generation. We then concluded that sex-linked genes and autosomal genes could indeed be traced through from the parent generation
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INTRODUCTION TO DROSOPHILA GENETICS DROSOPHILA CULTURE We will study basic principles of Mendelian inheritance with the use of the fruit fly‚ Drosophila melanogaster [the name means “black-bodied fruit-lover”]. Drosophila was one of the first organisms to be studied genetically: its small size‚ short life cycle (10 ~14 days at 25oC)‚ high reproductive rate (an adult female can lay 400-500 eggs in 10 days)‚ and ease of culture and genetic manipulation have made it perhaps the best understood animal
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Autosomal Inheritance of Wrinkled and black Mutations in Drosophila melanogaster Abstract Homozygous Wrinkled virgin females and homozygous black male Drosophila melanogaster‚ were crossed. Mutations were located on chromosome two and three respectively. The F1 generation‚ all Wrinkled and black‚ was inbred yielding and F2 generation. A phenotypic ratio of 9:3:3:1 was hypothesized with wrinkled wings and wild type body: wrinkled wings and black body: wild type wings and body wing: wild type wings
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FEEDING HABITS OF DROSOPHILA MUTANTS Name: Joshua Suidgeest Student ID: U3081023 Tutorial Day and Time: Friday’s at 14:30 (until 17:30) Tutor’s Name: Sandy I declare that the written work presented in this report is my own work. Abstract As a pre-introduction to this lab report as a whole‚ this experiment was carried out to answer some questions that may come to mind when “Drosophila” and “Inheritance” are put in the same sentence. The Drosophila insect is a species of
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The fruit fly Drosophila melanogaster are an excellent specimen for research in genetics. Many reasons are that they have a rapid reproduction rate‚ easy to care compared other animals and less expensive. Researchers have determined the nucleotide sequence of nearly the entire 120 megabase euchromatic portion of the Drosophila genome (Cite). Drosophila has a simple genetic arrangement of only four chromosomes which contains three autosomes and one sex chromosome according to(--) and because of this
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