Fill in the genotype in the parentheses and FOIL each parent’s genotypes: heterozygous tall heterozygous red flowered plant ( homozygous short white flowered plant (
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- Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were counted, with the following results: 474 Aabb, 480 aaBb, 20 AaBb, and 26 aabb. What type of cross is it? Are these loci linked? What are the two parental classes and the two recombinant classes of offspring? What is the percentage of recombination between these two loci? How many map units apart are they?Given the karyotype shown at right, is this a male or a female? Normal or abnormal? What would the phenotype of this individual be?3.) A Heterozygous tall heterozygous red flowered plant is crossed with a Homozygous short white flowered plant. What is the genotype of the heterozygous tall heterozygous red flowered plant? What is the genotype of the homozygous short white flowered plant? Fill in the genotype in the parentheses and FOIL each parent’s genotypes: heterozygous tall heterozygous red flowered plant ( homozygous short white flowered plant ( How many of the 16 offspring are: tall & red tall & white short & red short & white
- 3.) A Heterozygous tall heterozygous red flowered plant is crossed with a Homozygous short white flowered plant. What is the genotype of the heterozygous tall heterozygous red flowered plant? What is the genotype of the homozygous short white flowered plant? Fill in the genotype in the parentheses and FOIL each parent's genotypes: heterozygous tall heterozygous red flowered plant ( homozygous short white flowered plant (If a homozygous tall pea plant is crossed with a homozygous shortpea plant, what are the possible genotype and phenotype of theoffspring? Legend: T- tall pea plant t- short pea plant Genotypes of the parents: TT x tt Question to answer ff: 1. What is the genotypic ratio? 2. What are the possible phenotypes of the offspring? 3. What is the phenotypic ratio?Purple flowers are dominant to white flowers. Identify the phenotypefor the following genotype Ff, FF, ff and determine if the genotype is heterozygous or homozygous. * For each row, you should select two columns. Purple flowers White flowers Heterozygous Homozygous Ff FF ff Brown eyes are dominant to blue eyes. Identify the phenotype for the following genotype BB, Bb, bb and determine if the genotype is heterozygous or homozygous. * 口 ロ口
- 1. The allele G for yellow stigma is completely dominant to green (g). Supposingtwo strains of autotetraploid plants are available and their genotypes are as follows:GGgg – in this plant the gene is close to the centromereGggg – in this plant the gene is far from the centromere If these two plants are crossed:a) provide the gametes that can be obtained from the two plants;b) provide the genotypic and phenotypic ratios of the offspring. 2. Consider the illustration below. Diagram the configuration you would observe at Anaphase I if crossing-over happens within the inversion. (IMAGE ATTACHED)What are the phenotypes? What is the ratio of those phenotypes? The phenotypes would be: (a) Yellow with smooth (b) Yellow with wrinkled 3:1 Part 2: Data Tables Table 1: Parent Genotypes: Monohybrid Crosses Generation Genotype of Individual #1 Genotype of Individual #2 P Yy Ss P1 Yy Ss P2 Yy ss P3 Yy SS P4 YY SS Table 2: Generation Data Produced by Monohybrid Crosses Generation Possible Offspring Genotypes Possible Offspring Phenotypes Genotype Ratio Phenotype Ratio P yySs P1 yySs P2 Yyss P3 YySS P4 YYSS Part 2: Post-Lab Questions How much genotypic variation do you find in the randomly picked parents of your crosses? How much in the offspring? Pool all of the offspring from your five replicates. How much phenotypic variation do you find? Is the ratio of observed…type P = n! (p)* (q)"* х! (n - х)! Practice Problem: You cross a true-breeding pea plant with red flowers to a true-breeding pea plant with white flowers. All of your offspring have red flowers. Which gene is dominant? Why? What is the genotype of your offspring? You then cross the offspring to each other. What ratio do you expect? Why? You count 1000 plants and look at their flowers. Your results are as follows: 740 red 260 white Does this follow a simple Mendelian inheritance pattern? Why or why not? DADT 2 MEA SUDI ND D LUT IONS
- In dogs, dark coat color is dominant over albino, andshort hair is dominant over long hair. Assume that theseeffects are caused by two independently assorting genes.Seven crosses were done as shown below, in which D andA stand for the dark and albino phenotypes, respectively,and S and L stand for the short-hair and long-hairphenotypes.Number of progenyParental phenotypes D, S D, L A, S A, La. D, S × D, S 88 31 29 12b. D, S × D, L 19 18 0 0c. D, S × A, S 21 0 20 0d. A, S × A, S 0 0 29 9e. D, L × D, L 0 31 0 11f. D, S × D, S 45 16 0 0g. D, S × D, L 31 30 10 10Write the genotypes of the parents in each cross. Use thesymbols C and c for the dark and albino coat-color allelesand the symbols H and h for the short-hair and long-hairalleles, respectively. Assume parents are homozygousunless there is evidence otherwise.Introduction: A dihybrid cross is a cross between individuals that involves two pairs of contrasting traits. To Predict the results of a dihybrid, cross all possible combinations of the four alleles from each parent must be considered. You will examine a dihybrid cross involving both color and texture. Purple (P), is dominate to yellow (p), and smooth texture (S) is dominant to wrinkled (s). Both parent plants are heterozygous for both traits. Review genetics and the use of Punnett squares in a biology text before doing this experiment.MATERIALS: Assume you have ear of Corn. You need a heterozygous X heterozygous 9:3:3:1, purple/yellow, starchy/sweet. PROCEDURE: From above please write out: The crop The parental (P) cross phenotype, genotype, gametes Cross between two F1 Selfed testcross 1. First let us use a Punnett square to examine the theoretical outcome of the Heterozygous X Heterozygous dihybrid cross. USE a Punnett square. REMEMBER: a phenotype is how the offspring will…Faragraph Styles In peas, long stem "A" is dominant over short stem, "a". Give the expected genotypes, phenotypes and the probabilities for the following crosses: 6. a) homozygous long x short Genotypes Phenotypes b) heterozygous long x short Genotypes Phenotypes c) beterozygous long x homozygous long Genotypes Phenotypes