NO.102/1 Marker Code Student Personal Identification Number (SPIN) South Pacific Form Seven Certificate BIOLOGY 2009 QUESTION and ANSWER BOOKLET Write your Student Personal Identification Number (SPIN) on the top right hand corner of this page and on the fold-out flap on the last page. Answer ALL QUESTIONS. Write your answers in the appropriate spaces provided in this booklet. If you need more space for answers‚ ask the Supervisor for extra paper. Write your SPIN on all extra sheets used and
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Michelle Kelly July 28‚ 2010 BIOL 2071 Section 001 Brassica Rapa Fast Plant Traits Experiment By: Tony Nguyen Group Members: Troy Kessler‚ Christopher Amo-Quarm Abstract: How are traits passed down from one generation to the next? Does the genes from both parent combine into 1 or are the inherited by a whole where 1 is express while the other stays dormant. Using Mendel’s Laws as a base for our experiment‚ we will determine the expected outcome of these
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Dialects refers to how words are pronounced. Your demographic location and social class can affect your dialect; how you pronounce and say certain words. I am from Texas and when I speak you can easily hear my southern accent so I identify with other texans. Also‚ jargon’s that are used can help classify individuals into a category. But I think to answer your question language helps to define individuals easily because when a person speaks it is very easy to detect where they might be from and also
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meant to help connect the mode of inheritance with different eye color mutations and pinpoint where they occur in the pigment pathway. The drosophila eye color is a result of two bio-synthetic eye color pathways‚ this is expressed as a trait or phenotype‚ a multigene trait. There is the ommochrome pathway that produces a brown pigment and the drosopterin pathway that results in the bright red pig mention due to many pigments blended together. The initial substrates or precursors begin with the amino
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• Fly Food Methods: Independent Variable: Parental (F1) Eye Color Dependent Variable: Offspring (F2) Eye Color Control Group: Punnett Squares Controlled Variables: Same food‚ living quarters‚ species and Flynap. 1. Observe phenotypes of the flies in your given vial. 2. Fill out a label for your new empty vial. 3. Place the label on the new vial. 4. Wait for teacher to feed flies. 5. Place the first vial on its side and gently transfer 5 male and 5 female flies
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Huntington’s disease is an autosomal dominant neurodegenerative disorder characterized by an abnormally high number of CAG repeats (polyglutamine) in the huntingtin (HTT) gene (also known as IT15)‚ found in the short arm of chromosome 4‚ specifically‚ p16.3 (Buetow et al. 1991). Symptoms of this disorder include chorea (involuntary jerking movements)‚ cognitive deficits‚ motor deficits‚ and changes in behavior. This disease gets progressively worse over time‚ starting with subtle behavioral‚ cognitive
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Practice Problems 1. Evolution occurs at the level of a. the individual genotype b. the individual phenotype c. environmentally based phenotypic variation d. the population 2. What does natural selection act upon? a. The gene pool of the species b. The genotype c. The phenotype d. Multiple gene inheritance systems 3. Suppose a particular species of flowering plant that lives only one year can produce red‚ white‚ or pink blossoms‚ depending on its genotype. Biologists
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Principles of Biology I Exam 4 Review Questions 1. What is the difference between a genotype and a phenotype? 2. Write the genotype of a homozygous recessive‚ homozygous dominant‚ and heterozygous pea plant using the trait flower color (p). 3. Different versions of a gene are called ____________. 4. Why are there always two alleles present for each gene at a specific locus? 5. True or False. A dominant allele is always written with a capital letter‚ whereas the recessive allele
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Natural Selection affects all the levels of taxonomic hierarchy from genes to groups of distantly related individuals. In order for this to occur‚ natural selection must produce adaptations that can be passed down through generations. Heritability‚ the phenotypic variance accounted for by genetics effects‚ must also be present (Latta‚ 2010). The levels of organization are bound together. Therefore‚ if one level has benefited by an adaptation caused by natural selection‚ then latter levels will
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separates during gamete formation so that each gamete transfers only one allele of each gene. The last one is Law of Dominance which states that some alleles are dominant others are recessive and that an organism with at least one dominant will show the phenotype or the result of that dominant allele. The 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
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