Practice with Crosses.5. A TT (tall) plant is crossed with a tt (short plant).What percentage of the offspring will be tall?6. A Tt plant is crossed with a Tt plant. What percentageof the offspring will be short?What percentage is tall?7. A heterozygous round seeded plant (Rr) is crossed with ahomozygous round seeded plant (RR).What percentage of the offspring will be homozygous (RR)?8. A homozygous round seeded plant is crossed with a homozygouswrinkled seeded plant. What are the genotypes of the parents?What percentage of the offspring will also be homozygous?I alsoWhat is the genotype of all of the offspring?9. In pea plants purple flowers are dominant to white flowers.If two white flowered plants are cross, what percentage of theiroffspring will be white flowered?10. A white flowered plant is crossed with a plant that isheterozygous for the trait. What percentage of theoffspring will have puple flowens?11. Two plants, both heterozygous for the gene that controlsflower color are cro ssed. What percentage of their offspringwill have purple flowers?What percentage will have white flowers?12. In guinea pigs, the allele for short hair is dominan t.What genotype would a heterozygous short haired guinea pig have?What genotype would a purebreeding short haired guinea pig have?What genotype would a long haired guinea pig have?13. Show the cross for a pure breeding short haired guinea pigand a long haired guinea pig.What percentage of the offspring will have short hair?What is the genotype of the offspring?14. Show the cross for two heterozygous guinea pi gs.What percentage of the offspring will have short hair?What percent age of the offspring will have long hair?15. Two short haired guinea pigs are mated several times. Out of 100offspring, 25 of them have long hair. What are the probablegenotypes of the parents?Show the cross to prove it!

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Description: Practice with Crosses.5. A TT (tall) plant is crossed with a tt (short plant).What percentage of the offspring will be tall?6. A Tt plant is crossed with a Tt plant. What percentageof the offspring will be short?What percentage is tall?7. A heterozy

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5. A TT (tall) plant is crossed with a tt (short plant). What percentage of the offspring will be tall?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter12: Mendel, Genes, And Inheritance

Section: Chapter Questions

Problem 6TYK

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Neep help ASAP. A red flowered plant was crossed with a blue flowered plant and produced all purple flowered plants. When the purple flowered plants were crossed with each other they produced 5 red plants, 5 blue plants, 20 deep purple plants, 20 light lilac plants, and 30 purple plants How many genes are involved in the color production? Assume that red color is caused by an A allele and blue color by a B allele and determine the likely genotype of the plants in the F2 generation.
5. In garden peas, green pod (P) is dominant to yellow pod (p) and tall stemmed (T) plants are dominant to short stemmed plants (t). Please give the genotypic and phenotypic ratios from the following crosses. a) Homozygous green pod homozygous tall stemmed plant crossed with a yellow pod (homozygous) short stemmed (homozygous) plant. b) Homozygous green pod homozygous tall stemmed plant crossed with a heterozygous green pod heterozygous tall stemmed plant. c) Heterozygous green pod heterozygous tall stemmed plant crossed with a heterozygous green pod heterozygous tall stemmed plant. d) Heterozygous green pod homozygous tall stemmed plant crossed with a yellow pod (homozygous) homozygous tall stemmed plant. These are dihybrid crosses. 7. In pea plants, flower colour and pollen shape are located on the same chromosome. A plant with purple flowers and long pollen (AaBb) is crossed with one that is recessive for both traits (aabb). Calculate the…
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
1. In pea plants, purple flower color is dominant over white flower color. If you had a purple flowered plant, its genotype could be either PP or _______? A. Pp B. pp C. PP 2. To figure out which genotype your purple plant had, you could do a test cross and mate it with a __________ plant? A. White Flower B. Purple Flower 3. If any of the offspring were white, that would tell you that your mystery purple plant had the genotype __________? A. Pp B. PP C. pp
Problem: A homozygous tall, homozygous white flower plant crosses with a homozygous short, homozygous purple flower plant. We know that the purple and tall flowers are the dominant traits. Show your work. 1. What are the genotypes of the offspring? Why? 2. What are the genotypes of the offspring? Why?
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