fruit 3 - foul-smelling‚ shrunken fruit‚ short height 1 - normal phenotype Determine the genetic map for these traits‚ showing map distances. 2. Given the following three genes: Q -10 mu - P -30 mu - S You cross a homozygous dominant individual with a homozygous recessive individual‚ and obtain an F1 generation. You then cross an F1 individual in a testcross. What will the F2 progeny genotypes be? In total of 2000 progeny‚ how many offspring will be present in each
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CyCg x CyCg. A chromosome for these plants has two sets of genes. The gene at one locus has two alleles that code for normal chlorophyll production. Dominant allele represented as G produce the green phenotype. The mutant allele‚ g‚ produces no chlorophyll producing an albino phenotype. Therefore genotypes GG and Gg phenotypically are green. When mutant allele g is homozygous for it‚ gg‚ no chlorophyll is present and the plants phenotypically are albino. Therefore an expected phenotypic ratio would
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phenotypic ratio. What are the genotypes of the parents? 3:1. (heterozygous parents) 2- According to Mendel’s law of segregation‚ parents who both have the genotype Aa would produce what gametes? A germ cell Aa undergoes meiosis 3-What is the genotype of a plant that produces green peas? Yellow peas are dominant. Yy or yy when crossed with a heterozygote (Yy) will give some offspring that are green 4- To determine whether an animal with the dominant phenotype is heterozygous or homozygous‚ it
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Marking Scheme Synopsis‚ Clarity‚ English Language‚ sequence of events (3) Introduction (1)‚ Scientific content (15)‚ Conclusion (1). Introduction: Genetic Diversity: Every individual has a unique genotype. This is equal to the combination of alleles of all its genes. The greater the number of genotypes in a population‚ the greater the genetic diversity. Genetic mutations produce new alleles of genes that increase variation- Gene mutation are permanent changes in nucleotide sequence in codons of
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offspring. When the very same albino is crossed with another black guinea pig‚ 7 black and 5 albinos are obtained. Explain this genetic outcome by writing out the genotypes for the parents‚ gametes‚ and offspring in both crosses. First Cross: The fact that all F1 offspring are black suggests that the parents of the first cross were genotype BB x bb (where B=black and b=albino). The gametes produced by the black parent would have carried the B allele‚ while those produced by the albino parent carried
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has two alleles in the flies’ genotype‚ or genetic makeup. In the parent generation (P)‚ the flies used are homozygous‚ meaning they have two of the same alleles (“Mendelian Genetics”). The females are winged‚ and since that is a dominant allele‚ it is represented by a capital letter F. That means the female genotype is FF‚ because they get one allele from each parent. The males are wingless‚ which is a recessive allele represented by a lowercase f. Their genotype is ff. A Punnett square can be
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Practice In this lab‚ you will model the distribution of alleles‚ calculate the probabilities of specific allele combinations‚ and compare them to those that Gregor Mendel found in his work. PROBLEM What is the probability that certain genotypes and phenotypes will occur? MATERIALS 2 pennies 4 cm masking tape marker one folded‚ 3" × 5" index card with a monohybrid cross on it (e.g.‚ Aa × aa‚ or AA × Aa) PROCESS SKILLS Calculating Probabilities PROCEDURE 1. Using
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Formation 1. What are the gamete combinations that can be produced by the following individuals? a. AABB- AB b. AaBB- AB and aB c. AAABBcc- ABc d. AAbbCc- AbC and Abc e. AaBbCc- ABC‚ ABc‚ AbC‚ Abc‚ aBC‚ aBc‚ abC and abc 2. What are the possible genotypes of the offspring from mating of the following individuals? (the x refers to the mating. In the first‚ you would place EE along the top and ee on the side or vice versa). a. EE x ee E E e Ee Ee e Ee Ee b. Ee x Ee E e E EE Ee e
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direction. 2. How does an organism’s genotype determine its phenotype? The genotype is the genetic makeup of a cell‚ an organism‚ or an individual usually with reference to a specific character under consideration. A phenotype is the composite of an organism’s observable characteristics or traits: such as its morphology‚ development‚ biochemical or physiological properties‚ phrenology‚ behavior‚ and products of behavior. Phenotypes result from the expression of an organism’s genes
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capacity to store genetic information‚ copy it and pass it from generation to generation‚ and the specific three dimensional arrangements of atoms that gave DNA its unique proprieties. 2. How does an organism’s genotype determine its phenotype? * * The phenotype is an organism in a class to which that organism belongs as determined by the description of the physical and behavioral characteristics of the organism for example the size and shape‚ its metabolic activities‚ and its
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