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- Sample problems related to non Mendelian inheritanceRead, analyze and answer completely the following problems: 1. Explain why it is possible for the proband in the following pedigree to have children of blood types A, B, and AB. Considering epistatic genes, what are the possible genotypes of II-2? 2. Agouti (A) is wild type and produces alternating bands of pigment on each hair. Black (a) is recessive to agouti. A mutation on gene B (recessive b) can eliminate all color. In a cross between agouti (AABB) and albino (aabb) mice, what genotypes, phenotypes, and proportions are expected in the offspring in F1 and F2 generations?Hardy-Weinberg Problems Please be sure to SHOW ALL WORK in order to get credit. This assignment will be graded for accuracy. *Hint: Remember what p and q represent. Determine first if I am asking for allele frequency or genotype/phenotype frequency. Then determine which equation is appropriate. What does p and q represent in the equations? Which equation do you use if I am asking for allele frequency? If the frequency of the recessive allele is 0.1, what is the frequency of the dominant allele? If the frequency of the dominant allele is 0.4, what is the frequency of the recessive allele? If the frequency of the dominant allele is 0.6, what is the frequency of the homozygous dominant genotype? If the frequency of the homozygous recessive genotype is 0.81, what is the frequency of the recessive allele? If the frequency of the homozygous dominant genotype is 0.25, what is the frequency of the dominant allele? If the frequency of the…Practice Pedigree Problem help. I am confused so please show. Label Phenotypes and genotypes as you go about the Pedigree (and whatever else might be required)! Thank you again for your help, these questions confuse me). Hair or fur length in cats is controlled by a single, autosomal gene; the short hair-allele is dominant to the allele for long hair. Hair color is produced by a different gene which is located on the X chromosome. One allele for this sex-linked gene produces yellow, while an alternate allele produces black fur color; individuals which are heterozygous for these alleles are calico or tortiseshell in color. a). If a long-haired, black male is mated with a calico female homozygous for short hair, what kind of kittens will be produced in the F1generation? Give both genotypes and phenotypes; express the genotypes both symbolically and in words.
- PROBLEM SET #4: Assume that pattern baldness is a sex-linked, recessive trail. In a population of 100 humans, 6 males were bald. Given this... can you calculate: What are the frequencies of the normal P allele and the baldness p allele? What is the expected frequency of bald-females? What is the expected frequency of heterozygous carriers? What gender would these carriers be? DELL Ce %23 %24 & 4 8. t y f h j k C V m baPunnett Square Problems a. The presence of a widow's peak is dominant over a straight hairline. In a cross between a homozygous dominant male and a homozygous recessive female, what is the male's genotype? Use the letter T and/or t in showing the correct genotype. b. What are the resulting genotype(s) of the offsprings in the cross from the previous question? If you are including multiple answers, separate them with commas. c. What is the resulting phenotype(s) of the offspring? If you are writing multiple answers, please separate them with commas.Question: Black hair of the mouse is produced by dominant gene B and white hair by recessive allele b.Female with black hair crossed with male black hair (both genotypes are heterozygous). Produced individuals 112 and 113, female with white hair and male with black hair, then mating occur between 114 and 113, and another mating occur between 112 and 111. assume that 111 and 114 individuals do not carry the recessive allele, represents the above in a pedigree chart and determine the genotype of each individual.
- PROBLEM SOLVING: In the human pedigree below, the filled symbols represent the affected individuals. 1 4 5 6 7 11 8 10 12 Determine the genotypes of the numbered individuals 1 5 13 - 6_ 10 14 13 14 Determine the mode of Inheritance 7. 11 8 12 4. 2. 3.ALL WORKING MUST BE SHOWN Problem 3) Butterflies show 3 phenotypes due to incomplete dominance at the D locus with alleles D' and DB giving green phenotype in heterozygotes and yellow and blue in homozygotes a) A population of butterflies showed 49% yellow, and 51% blue and green. What percentage of the gametes for the next generation would contain the DB allele? b) In another population only 1% of the butterflies are blue, What is the DY allele frequency? c) If the butterflies were subject to predation by birds that could easily detect blue & yellow individuals what effect would you expect this to have on the genotype and allele frequencies over time? Indicate possible percentages.Genetics Problems 1. In guinea pigs, black coat color (B) is dominant to white color (b). Give the genotypic and phenotypic ratios in the following crosses. a. Cross a heterozygous black guinea pig with a homozygous black guinea pig. b. Cross a heterozygous black guinea pig with a white one. c. Cross two heterozygous guinea pigs. 2. In garden peas, round seeds (R) are dominant over wrinkled seeds (r). Cross two heterozygous plants. Give the genotypic and phenotypic ratios. 3. In humans, normal skin pigmentation is the result of the action of a dominant gene (A), which allows pigmentation to develop. All individuals who are homozygous for the recessive allele (a) are unable to produce an enzyme needed for production of the melanin pigment and are therefore referred to as albino. Two normal parents produce an albino child. What are the chances that the next child will be an albino? 4. A normally pigmented woman whose father was an albino marries an albino man whose parents were normal.…
- URGENT PLEASE HELP A researcher crosses mice with brown eyes and long tails, and the F1 progeny were recovered in the following numbers and phenotypic classes:F1: 6 apricot, short : 30 brown, long : 15 brown, short : 9 apricot, longYou know the genes encoding these traits are autosomal, completely dominant and assort independently. You want to use a chi-square test to analyse these results.a) Making use of the appropriate genetic convention for naming alleles, give the genotype of the male parent in this cross. b) What is your null hypothesis for the chi-square test? c) Give the expected number of individuals in the “brown, long” class.Directions: Solve these genetic problems. Be sure to complete the Punnett square to show how you derived your solution. 1. In humans, the brown-eye (B) allele is dominant to the blue-eye allele (b). If one heterozygote and one homozygote mate, what will be the likely genotype and phenotype ratios of the offspring. GR: PR: 2. In pea plants, purple flower color (P) is dominant over white flower color (p). Show the cross of a purple flower color that is heterozygous for pea flower color with a white flower color. Summarize the genotypes and phenotypes of the possible offspring in ratios. GR: PR: 3. In guinea pigs, the allele for short hair (H) is dominant to long hair (h). Two short-haired guinea pigs are mated several times. What are the most probable genotypes of each of the parents? What will be the likely genotype and phenotype rations of the offspring? Explain using a Punnett square. Parental Genotypes: GR: PR:Questions and Problems: Show your solutions. 3. If two gene pairs A and a and B and bare assorting independently with A dominant to a and B dominant to b, what is the probability of obtaining: а. an AB gamete from an AaBb individual? b. an AABB zygote from an AaBb x AaBb cross? С. an aaBb offspring from an AaBB x aabb cross? d. a phenotype aB from an Aabb x aaBb cross? е. an ab gamete from an aaBB individual?
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