F₁ generation 1. Parents with the following genotypes were crossed: RR x rr 2. Make a Punnett Square using these parents. Identify the possible types of offspring (F₁ generation), and answer the following questions: How many of the F₁ offspring will be purple? How many of the F₁ offspring will be yellow? What is the F₁ genotype?_ What is the F₁ genotypic ratio? The F₁ generation is all (select one): a. Homozygous dominant b. Heterozygous c. Homozygous recessive
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- (Purple) (White) 12. Two plants, both heterozygous for the gene that controls flower color are crossed. Give the expected RATIOS for each genotype and phenotype. Phenotype Ratio - Gentoype Ratio - 13. In guinea pigs, the allele for short hair is dominant over long hair. Two short haired guinea pigs are mated several times. Out of 100 offspring, 25 of them have long hair. What are the probable genotypes of the parents? (Show the cross to prove it!)Incomplete Dominance 1. In snapdragons, red flower color (R) is incompletely dominant over white flower color (r). The hybrids or heterozygous plants (Rr) are pink in color. a) Show the genotype for a white flower and for a red flower. b) If a red-flowered plant is crossed with a white-flowered plant, what are the genotypes and phenotypes of the F1 generation plants? Show your work. c) What genotypes and phenotypes will be produced in the F2 generation? Show your work? the the o doa A t r th s beirs ard the phenorypic and wo ran aials pring fro d) How did the genotypic and phenotypic ratio compare to each other in this incomplete dominance cross? gonarypi and e) What would the phenotypic ratio have been if this had been complete dominance?Topic: Modifications of Mendelian Genetics LEARNING ACTIVITY and ASSESSMENT 1. In addition to the ABO blood group, many others have been identified in humans. One such group is the MN group, controlled by two codominant alleles, M and N, at one locus. What will be the probability of the genotypes and phenotypes that would be produced in crosses involving the following phenotypes: а. Туре М and type N b. Туре М and type MN c. Type N and type N d. Type MN and type MN 2. Could a child of type N result from the mating of M and MN? Justify your answer.
- 2/7 - <. Hair texture is an incompletely dominant trait in humans. The three phenotypes are curly, wavy and straight. Straight only occurs when both parents have straight hair. Curly hair also tends to follow this pattern. Only two wavy haired parents produce all three phenotypes. Please explain this observation using punnett squares. Curly x Curly straight x straight Wavy x wavyName: Genetic Crosses that Involve 2 Traits In rabbits, black hair is dominant to brown hair. Also in rabbits, long straight ears are dominant to floppy ears. These letters represent the genotypes and phenotypes of the rabbits: BB = black hair EE = long ears Ee = long ears ee = floppy ears Bb = black hair bb = brown 1. A male rabbit with the genotype BBee is crossed with a female rabbit with the genotype bbEe The square is set up below. Fill it out and determine the phenotypes and proportions in the offspring. How many out of 16 have black hair Be Be Be Be and long ears? How many out of 16 have black hair bE and floppy ears? be How many out of 16 have brown hair and long ears? bE How many out of 16 have brown hair be and floppy ears? 2. Show the cross: GgBb x ggBb How many out of 16 have black hair and long ears? How many out of 16 have black hair and floppy ears? How many out of 16 have brown hair and long ears? How many out of 16 have brown hair and floppy ears?Genotypic %: 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:
- - 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 AaBbCcDdEeffDrosohpila Punnet Square of Crosses. I need results of F1 & F2 generation using Punnett Squares for: Make Punnet Squares of the following crosses •Drosophila Female wildtype cross Male White-eye •Drosophila Male wildtype cross Female White-eye •Drosophila Female Wild Type cross Male Scarlet Eye •Drosophila Male Wild Type cross Female Scarlet Eye Also, Which allele is heterozygous and which is homozygous, & which is dominant and which is recessive?Test Crosses: Determining Unknown Genotypes 3. Coat color in Labradors is caused by two different alleles of a color gene. The dominant allele, B, generates black fur, while the recessive allele, b, generates brown fur. Your neighbor has a black Labrador and is interested in understanding how to determine if his dog is homozygous or heterozygous for the black coat color genotype. Answer the following questions to determine how a test cross could help your neighbor discover his dog's genotype. a. What are the possible genotypes of your neighbor's Labrador? b. In a test cross, why is the organism of unknown genotype crossed to a homozygous recessive individual? Assign the possible paternal gametes of the unknown Labrador to the vertical axis in each of the Punnett squares at right. Assign the gametes of the homozygous recessive dog to the horizontal axes in each of the Punnett squares. c. What are the expected genotypes and phenotypes of the puppies that will result from the test cross…
- . Jimsom. weed plants can produce purple or white flowers and spiny or smooth seed pods. A purple spiny plant is crossed with a white spiny plant. This cross produces: 89 purple spiny; 92 white spiny; 31 purple smooth and 27 white smooth plants. What are the genotypes of the parental plants and the progeny plants? Use the letters P/p for flower color and S/s for pod texture Parent #1 –genotype:_________________________________; Parent #2 –genotype: ______________________________ b. Offspring plants – genotypes and phenotypes c. Calculate the recombination frequency using these results_________________________________ i need help finding the right answer and i need an explation on how you got it so i understand and please do it with a punnet square and show the calutions step by step7-8. Assume that white color is dominant over yellow color in squash. If pollen from the anthers of a heterozygous white-fruited plant is placed on the pistil of a yellow- fruited plant, show using ratios the genotypes and phenotypes you would expect the seeds from this cross to produce. Genotypes = 1/2 Ww 1/2 Ww = 1:1 ratio | Phenotypes = All white = 1:0 ratio Genotypes = 1/2 WW 1/2 ww = 1:1 ratio | Phenotypes = 1/2 white 1/2 yellow = 1:1 ratio Genotypes = 3/4 Ww 1/4 ww = 1:1 ratio | Phenotypes = 3/4 white 1/4 yellow = 1:1 ratio Genotypes = 1/2 Ww 1/2 ww = 1:1 ratio | Phenotypes = 1/2 white 1/2 yellow = 1:1 ratio4:12 5. Set up the punnett square for each of the crosses listed below. The characteristic being studied is seed texture round seeds (dominant) and wrinkled seeds (recessive). Rr x rr Rr x Rr RR x Rr Tall: % Complete the punnett squares below using the given information. 6. A TT (tall) plant is crossed with a tt (short plant). Which trait is dominant? Give the expected probabilities for each genotype and phenotype. TT: Tt: Short: Previous % % tt: What percentage of the offspring would you expect be round? Wrinkled? ZOOM + What percentage of the offspring would you expect be round?_____ Wrinkled? What percentage of the offspring would you expect be round? Wrinkled? % 7. A hybrid tall (Tt) plant is crossed with a hybrid (Tt) plant. Give the expected probabilities for each genotype. phenotype. wvm.instructure.com