Learning Task # 2. Punnett Square a. Given the cross AaBb X AaBb, construct a Punnett square and determine the genotypic ratio (the probability that a particular genotype will occur) of the resulting cross b. Given this cross, TtGg X TtGg, fill-up the squares with the correct answer.
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- I. Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett square. Answer questions that ask for a ratio as a ratio and questions that ask for a percent as a percent. In humans, albinism is a recessively determined trait. One form of hereditary deafness is also a recessive trait. Show the cross of a man who is heterozygous for skin pigmentation and heterozygous for hereditary deafness with a woman who is albino and deaf. Show the expected phenotype ratio of the offspring.I. Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett square. Answer questions that ask for a ratio as a ratio and questions that ask for a percent as a percent. One form of red-green color blindness is an X-linked recessive trait. A heterozygote woman has children with a normal man. What is the percentage chance that they will have a child with color blindness?I. Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett square. Answer questions that ask for a ratio as a ratio and questions that ask for a percent as a percent. In humans, the allele for widow’s peak hairline is dominant to the allele for straight hairline. A woman with widow’s peak who is heterozygous marries a man with straight hairline and they decide to have children. Show the expected genotype ratio and phenotype ratio of the offspring. In snapdragon plants, the alleles for flower color show incomplete dominance. First show a cross of two parents, one with red flowers and the other with white flowers. Then show a cross of two of the F1 plants to get the F2 generation. Indicate the genotype ratio and phenotype ratio for both the F1 and F2 generations. A man with AB blood type…
- - 1 attachment If these two individuals with the following genotypes are crossed Parent 1: AAbbCCDDeeFf Parent 2: aaBBccddEEFf What is the expected genotypic ratio of the F, generation? (3 pts) A. ¼ AaBbCcDdEeFf: ½ AaBbCcDdEeFF: ¼ AaBbCcDdEeff B. ½ AaBbCcDdEeFf: ½ AaBbCcDdEeff C. 1 AaBbCcDdEeFF: 1 AaBbCcDdEeFf: 1 AaBbCcDdEeff D. 4 AaBbCcDdEeFF: ½ AaBbCcDdEeFf: 4 AaBbCcDdEeffGenotypic %: Phenotypic %: 3. Cross a man with type B heterozygous blood with a woman with type O blood, What are the possible genotypes and phenotypes of their offspring? Genotypes: Phenotypes: 4. Klariz, a 28-year-old woman with type O blood and Ricci, a 30-year-old man with type AB blood are expecting a child. What are the possible blood types of the kid? Show your solution using Punnett Square. Phenotypes: 5. Mrs. Lopez has type B blood. Mr. Lopez has type O blood. Their son Michael has type O blood. Make a Punnett square to show what Mrs. Lopez's genotype must be to have a child with type O blood. Mrs. Lopez's genotype:A research team interested in mapping human genes discovered a new restriction length polymorphism (RFLP). a. First, they test the RFLP in a family with the pedigree below. The individuals colored blue are affected by hemophelia, a blood clotting disease. Dad Mom daughter1 daughter2 son1 son1 On what chromosome is the RFLP found? Explain your answer. b. Next, they genotyped (determined the RFLP polymorphism, type 1 or type 2) of daughterl's family with the results shown below: husband daughter1 %3D Are the RFLP and the hemophilia gene linked? Explain your reasoning.
- Monohybrid Cross Worksheet Directions: Answer each of the following questions using a Punnett Square and the rules of monohybrid crosses. The allele for dimples (D) is dominant to the allele for no dimples (d). A man heterozygous for dimples marries a woman who is also heterozygous for dimples. What is the man’s genotype and the woman’s genotype? What is the man’s phenotype and the woman’s phenotype? Do a cross to determine all potential dimple genotypes and phenotypes for the offspring of this man and woman. The allele for hitchhiker’s thumb (h) is recessive to straight thumb (H). If a man and his wife are both homozygous recessive, will any of their offspring potentially have hitchhikers thumb? What is the man’s genotype and the woman’s genotype? What is the man’s phenotype and the woman’s phenotype? What genotype(s) must the offspring have in order to have the phenotypic trait of hitchhiker’s thumb? Do a cross to determine all potential hitchhiker’s…ne Left:1:41:03 GG Gg gg gG Abdelrahman Elgebaly: Attempt 1 Question 5 (Mandatory) (3 points) In fruit flies, gray body color is dominant over black body color. White eyes are dominant over red eyes. Using the letter G to represent body color and the letter W to represent eye color, what is the genotype of a heterozygous gray bodied, white- eyed fly? Write your answer below. Question 6 (Mandatory) (10 points) Saved Submit your Punnett Squares Lab Worksheet here. Paragraph V B I U A Ev Ev Punnett Squares Lab Worksheet.docx N S ►l| O % + v KY 8-Direction: Read and understand the ff. set of monohybrid cross problems and answer each problem by showing the Punnett square, genotypes ans phenotypes. 2. Horniess (H) in cattle is dominant over horned (h). A homozygous hornless bull is mated with a homozygous horned cow. What will be the genotype and phenotype of the first generation?
- C. Pedigree The pedigree shows the passing on of Hemophilia A. 1. What do the shaded circles mean? 2. What are the only sex carriers of colorblindness can be? 3. Which individuals are colorblind? 4. What is the genotype of person II-4? 5. If person IV-5 marries a female who is not colorblind and is not a carrier, what are the chances of their male offspring being colorblind? What about their female offspring? II 56060 IV 1 2 3 4 5 6 7 8Direction: Read and understand the ff. set of monohybrid cross problems and answer each problem by showing the Punnett square, genotypes and phenotypes. 5. In humans, being a tongue roller (R) who is a non-roller marries a woman who is heterozygous for tongue rolling. dominant over non-roller (r). A man a. Father's phenotype: b. Father's genotype: c. Mother's phenotype: d. Mother's genotype:Direction: Read and understand the ff. set of monohybrid cross problems and answer each problem by showing the Punnett square, genotypes ans phenotypes. 3. In tomatoes, red fruit (R) is dominant over yellow fruit (r). A plant that is homozygous for red fruit is crossed with a plant that has yellow fruit. What would be the genotypes and phenotypes? 4. If two of the first generation offspring from the problem above were mated, what would be the genotypes and phenotypes of the second generation?