Chapter 2 Genotype-phenotype • Phenotype: an individual’s directly observable physical and behavioral characteristics‚ which are determined by both genetic and environmental factors • Genotype: an individual’s genetic makeup Genes-chromosomes • Chromosomes: rodlike structures in the cell nucleus that store and transmit genetic information • DNA: are what chromosomes are made out of; long‚ double-stranded molecule that looks like a twisted ladder‚ each ladder consists of a specific pair
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purpose of this lab is to understand how each offspring inherits its genotype and how its phenotype reflects it. Sex chromosomes determine the sex of the offspring‚ and the autosomes consist of all the other chromosomes that determine phenotypic traits. Dominant traits are the genes that are expressed‚ while the recessive traits are masked by the dominant traits. We used Drosophila melanogaster (fruit fly)‚ mutating the female fruit fly with a scalloped gene to change the phenotype of its offspring
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about what a genotype is‚ what a phenotype is and how they can interact. Did you know that the composition of living organisms can be defined by two distinct parts – Phenotype and Genotype? In 1908‚ Wilhelm Johannsen introduced the distinction between genotype and phenotype upon realizing that the hereditary and developmental pathways were causally separate (Stanford University‚ 2011). While Phenotype and Genotype are depicted uniquely separate‚ they can interact. DEFINE GENOTYPE The first part
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The Relationship between the Genotype and Phenotype of Drosophila melanogaster Eye Pigment Mariam Rahmanyar 100486882 T.A: Zahra Mortaji BIOL 2020 Results: Our TLC plate showed all colours expressed by the pteridine pigments for the wild-type Drosophila as expected (Figure 1). The sample A mutant which was a bright-red eye mutant also expressed the same pigments as our wild-type. Compared to the wild type‚ sample A pigment spots were lower intensity in colour under the UV
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______________________________________ BioScience 100A Online Virtual Lab Report: Part 2 Due by: 11:59 PM PST on the final Saturday of class Updated 9/10/11 Directions: 1. Type your answers‚ observations‚ and results in bold. 2. Save your report often as you fill it out‚ so as not to lose information. 3. Use the report form as a single document‚ do not turn in separate reports for each lab 4. Use the ‘Save As’ option to save your file as a Word 97 .doc file 5. Save your lab report with this name: Last
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Name Section______________________________ Virtual Lab: Enzyme Controlled Reactions Worksheet Go to the following website to complete the virtual lab: http://www.mhhe.com/biosci/genbio/virtual_labs_2K8/pages/EnzymeControlledReactions.html Due: Wednesday‚ March 28‚ 2012 during your respective lab time 1. Which of the following does NOT apply to an enzyme: a. Catalyst b. Inorganic c. Protein d. All of the above apply to an enzyme 2. When an enzyme catalyzes a reaction: a. Substrate(s)
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BIOLOGY- VIRTUAL LAB DAYS P. Aurelia grown alone‚ cells/mL P. Caudatum grown alone‚ cells/mL P. Aurelia grown in mixed culture‚ cells/mL P. Caudatum grown in mixed culture‚ cells/mL DAY 0 1 1 1 1 DAY 2 6 4 4 6 DAY 4 27 14 17 12 DAY 6 42 24 33 10 DAY 8 49 30 39 8 DAY 10 49 30 43 4 DAY 12 49 30 48 2 DAY 14 49 30 48 0 DAY 16 48 30 47 0 Make a hypothesis about how you think the two species of Paramecium will grow alone and how they will grow when they are grown together. When 2 species of paramecium
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until plants begin to photosynthesise and create their own glucose for further development. Aim/Purpose - To demonstrate the effect of environment on phenotype 2To formulate a hypothesis about the effect of environment on phenotype To design and conduct a controlled experiment to demonstrate the effect of one environmental factor on a plant phenotype. Hypothesis- Radish plants that is grown in sunlight‚ room light and in the shade where there is absence of light‚ those that in the shade will display
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A person’s genotypes is their genes‚ which make up their DNA. Alleles are the types of genes‚ come in pairs in a gene‚ and are responsible for a person’s phenotypes(Wanjie 29). Phenotypes are the physical characteristics of a person. Alleles are either characterized as dominant or recessive. The dominant allele presides over the recessive allele‚ making the recessive allele "hidden". Because the recessive allele is covered‚ that person’s phenotype will only show the dominant allele
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es. Oxygen is measured in the number of bubbles produced by the plant. Three factors that influence the rate of photosynthesis can be adjusted in the simulator to determine how each of the factors affects the rate of photosynthesis. Virtual Lab PreLab Questions Q: To survive‚ what gas do we need to breathe in? __________________________________ Q: Where is this gas produced? _______________________________ A byproduct of photosynthesis in oxygen gas. Plant use some of the oxygen that they produce
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