Dihybrid Cross Problem 10: Exceptions to the 9:3:3:1 ratio of offspring? If Mendel's crosses between tall, spherical-seeded plants and short, dented- seeded plants had produced many more than 1/16 short, dented-seeded plants in the F2 generation, he might have concluded that: A. the dented seed and short traits are unlinked. B. he would not have concluded any of the above. C. all traits in peas assort independently of each other. D. the spherical seed and tall traits are linked. E. all traits in peas are linked.

Dihybrid Cross Problem 10: Exceptions to the 9:3:3:1 ratio of offspring? If Mendel's crosses between tall, spherical-seeded plants and short, dented- seeded plants had produced many more than 1/16 short, dented-seeded plants in the F2 generation, he might have concluded that: A. the dented seed and short traits are unlinked. B. he would not have concluded any of the above. C. all traits in peas assort independently of each other. D. the spherical seed and tall traits are linked. E. all traits in peas are linked.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter12: Mendel's Experiments And Heredity

Section: Chapter Questions

Problem 8RQ: Consider a cross to investigate the pea pod texture trait, involving constricted or inflated pods....

See similar textbooks

Similar questions

Consider a cross to investigate the pea pod texture trait, involving constricted or inflated pods. Mendel found that the traits behave according to a dominant/ recessive pattern in which inflated pods were dominant. If you performed this cross and obtained 650 inflated-pod plants in the F2 generation, approximately how many constricted-pod plants would you expect to have? 600 165 217 468
2 Considering the Mendelian traits round versus wrinkled and yellow versus green, consider the crosses below and determine the genotypes of the parental plants by analyzing the phenotypes of their offspring. Parental Plants Offspring (a) round, yellow * round, yellow 3/4 round, yellow 1/4 wrinkled, yellow (b) wrinkled, yellow * round, yellow 6/16 wrinkled, yellow 2/16 wrinkled, green 6/16 round, yellow 2/16 round, green (c) round, yellow * round, yellow 9/16 round, yellow 3/16 round, green 3/16 wrinkled, yellow 1/16 wrinkled, green (d) round, yellow * wrinkled, green 1/4 round, yellow 1/4 round, green 1/4 wrinkled, yellow 1/4 wrinkled, green
F2 plants segregate colored : colorless. If acolored plant is picked at random and selfed, what is theprobability that both colored and colorless plants will beseen among a large number of its progeny? Please solve with step by step please
Monohybrid Cross: 1) In dogs, wire hair (S) is dominant to smooth (s). a. In a cross between a homozygous wire-haired dog with a smooth haired dog what are the genotypes and phenotypes of the F1 generation? b. If a brother and sister from the F1 generation are crossed what is the expected ratio of wire-haired to smooth-haired dogs produced from this cross?
4:12 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
2. 3 1. In radishes, flower color may be red, purple, or white. The edible portion of the radish may be long or oval. When only flower color is studied, no dominance is evident, and red x white crosses yield all purple. Determine the appropriate allele symbols and indicate which genotypes lead to which a. phenotypes. b. If the F1 purple plants described above are interbred, what will be the genotype and phenotype ratios in the F2 generation? C. Regarding radish shape, long is dominant to oval in the typical Mendelian fashion. What will be the phenotype ratios in the F2 generation of a cross between a true-breeding red, long radish and a white, oval radish?
SET 2: In corn, the following allelic pairs have been identified in chromosome 3: +/b plant color booster vs. non-booster +/lg with ligule vs. without ligule +/v green plant vs. virescent A test cross between triple recessive plants and plants heterozygous for the three pairs gave the following progeny: + v lg b + lg b v lg + + lg 305 148 58 bv + + + + 62 + v + b + + 152 275 1000 Total Calculate the parental and recombinant frequencies, the map distances between genes, and the coefficient of coincidence. Illustrate the gene map or sequence.
11:50 1 Drive Dihybrid cross (two-trait crosses-each has two varieties) 4. A plant heterozygous for stem height and homozygous dominant for flower color is crossed with another plant recessive for both traits. What will the ratio of offspring be in the F1 generation? What genotypes in a parental generation will produce a 9:3:3:1 phenotypic ratio in offspring? Show your work. 5. A pure breeding, spherical yellow plant is crossed with a pure-breeding dented green plant. What will be the genotypic and phenotypic ratios in the F1 and F2 generations? 6. Which lawe Mnd his oss illustrate?
dd-ons Help в I U A Calibri 12 三三1 |:三 6. Consider a guinea pig with a homozygous genotype and a white fur color phenotype. a. What is the probability this parent will produce a gamete with the dominant allele? b. What is the probability this parent will produce a gamete with the recessive allele? C. If 31 sperm cells are collected from this guinea pig, how many would you expect to have the recessive allele (as determined by sequencing the gene)? !!!
3)Mendel found that crossing wrinkle-seeded (rr) plants with homozygous round-seeded(RR) plants produced only round-seeded plants. What genotype ratio and phenotyperatio can be expected from a cross between a wrinkle-seeded plant and a heterozygousplant for this characteristic?
4:12 8. A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR). Give the expected probabilities for each genotype and phenotype. 9. A homozygous round seeded plant is crossed with a homozygous wrinkled seeded plant. What are the genotypes of the parents? X 10. In pea plants purple flowers are dominant white flowers. If two white flowered plants are crossed, what percentage of their offspring will be white flowered? % Previous What percentage of the offspring will also be homozygous? ZOOM + 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 - 11. A white flowered plant is crossed with a plant that is heterozygous for the trait. What percentage of the offspring will have purple flowers? 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…
11. Mendel crossed peas having round seeds and yellow cotyledons with peas having wrinkled seeds and green cotyledons. All the F1 plants had round seeds with yellow cotyledons. a. What are the genotypes of the parent plants? b. What gametes could be produced by the parent with round seeds and yellow cotyledons? T C. What gametes could be produced by the parent with wrinkled seeds and green cotyledons?