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    descriptive probabilites

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    Name _____________________________ Period___________________Date__________________ OPTIONS FOR INQUIRY Probability 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

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    Week 5 Homework Key

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    carried the B allele‚ while those produced by the albino parent carried the b allele. The F1 offspring of such a cross would be Bb‚ and since black is dominant over albino‚ all the F1 animals would have had black fur. +1 point Second Cross: Since some of the F1 offspring are albino‚ that means that the black parent must have been heterozygous for fur color. So‚ the parents of the second cross were Bb x bb. The black parent would have produced gametes carrying either the B or the b allele‚ while the

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    variations in inherited characters. Different alleles will create different variations in inherited characters. The sescond idea is that for each character‚ an organism inherits two genes‚ one form each parent. So this means that a homolohous loci may have matching alleles‚ as in the true-breeding plants of Mendel’s P generation(parental). If the alleles differ‚ then there will be F hybrids. The third idea states that if the two alleles differ‚ the receessive allele will have no affect on the organism’s

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    Genetic Crosses Lab

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    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 and recessive traits. One example is freckles. Freckles is a dominant trait

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    The white tiger

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    fingerprints meaning that no two tigers have the same pattern of stripes. White tigers aren’t necessarily born from other white tigers. White tigers get their color by a double recessive allele. A Bengal tiger with two normal alleles or one normal and one white allele is colored orange. Only a double dose of the mutant allele results in white tigers (www.cranes.org/whitetiger). In fact it is even normal to find normal colored cubs in a litter of white tigers (www.5tigers.org.com). White tigers are a very

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    different phenotypes would be a blend of the parental types and variation would be lost from the population. Natural selection will not work under the blending theory of inheritance‚ because there would be a. only two alleles. b. no crossing over. c. incomplete penetrance. d. insufficient variation. e. astronomical mutation rates. 3. The western honey bee or European honey bee (Apis mellifera) is a species of honey bee

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    Biology 3201

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    organism that is expressing the dominant trait simply by looking at their appearance. P. 534‚ test cross. Incomplete Dominance Blending of the traits of two different alleles at one locus that occurs when neither allele is dominant. Co-Dominance Two alleles may be expressed equally. The situation occurs when two different alleles for a trait are both dominant. Ex. Feather colour in chicken - black birds are homozygous

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    Genetics: Test Questions

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    Name: ________________________ Class: ___________________ Date: __________ ID: A Genetics test questions Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Pea plants were particularly well suited for use in Mendel’s breeding experiments for all of the following reasons except that a. peas show easily observed variations in a number of characters‚ such as pea shape and flower color. b. it is possible to completely control matings

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    Genetics

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    A showed wild type female reveals the sex-linked recessive‚ and the cross A had wild type females reveals the x-linked dominant at the same time in part A. 3. Parent P1 P2 Genotype aa Aa Phenotype Wild Curly wing *Wild type allele: a *Curly wing allele: A Punnet Square Cross A P1 P2 a a A Aa Aa a aa aa F1 Genotype aa Aa F1 phenotype Wild type Mutant Phenotype ratio 1 1 Cross B (P2 and P2) P2 P2 A A A Aa Aa A Aa A A F1 Genotype Aa Aa AA

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    "Desiree’s Baby" follows the simple dominant/recessive pattern described by Mendel‚ is dark pigmentation best explained as an example of a dominant or recessive allele? 3. Does skin pigmentation follow simple dominance rules? If not‚ what kind of intermediate inheritance pattern would you assign it? Why? 4. Assign suitable symbols for each allele and use the information in the story to develop possible genotypes for Desiree‚ Armand‚ and the baby. Armand’s genotype Desiree’s genotype Baby’s genotype

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