Imagine that Mendel is tending a garden of 100 pea plants. He has 20 plants that are homozygous for the purple allele, 50 plants that are heterozygous, and 30 plants that are homozygous for the white allele. What is the frequency of the purple (P) allele?What is the frequency of the white (p) allele?

Imagine that Mendel is tending a garden of 100 pea plants. He has 20 plants that are homozygous for the purple allele, 50 plants that are heterozygous, and 30 plants that are homozygous for the white allele. What is the frequency of the purple (P) allele?What is the frequency of the white (p) allele?

Name: Imagine that Mendel is tending a garden of 100 pea plants. He has 20
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Description: Imagine that Mendel is tending a garden of 100 pea plants. He has 20 plants that are homozygous forthe purple allele, 50 plants that are heterozygous, and 30 plants that are homozygous for the whiteallele. What is the frequency of the purple (P) all

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter9: Patterns Of Inheritance

Section: Chapter Questions

Problem 1CT

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In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele for red flowers (p). An allele for long pollen grains (L) is dominant when paired with a recessive allele for round pollen grain (l). Bateson and Punnett crossed a plant having purple flowers/long pollen grains with one having white/flowers/round pollen grains. All F1 offspring had purple flowers and long pollen grains. Among the F2 generation, the researchers observed the following phenotypes: 296 purple flowers/long pollen grains 19 purple flowers/round pollen grains 27 red flowers/long pollen grains 85 red flowers/round pollen grains What is the best explanation for these results?
Imagine that Mendel is tending a garden of 100 pea plants. He has 20 plants that are homozygous for the purple allele, 50 plants that are heterozygous, and 30 plants that are homozygous for the white allele. What is the frequency of the purple (P) allele? What is the frequency of the white (p) allele?
Why do you think Mendel's finding rejects the blending theory of inheritance?
Over the years, Mendel experimented with more than 30,000 pea plants. Why did Mendel collect data on so many plants? Why didn’t he study just one cross? Hint: Read “What Are the Odds?” on page 124 before answering.
In Mendel’s 1866 publication as shown in Figure 1-4, he reports 705 purple-flowered (violet) offspring and 224 white-flowered offspring. The ratio he obtained is 3.15:1 for purple: white. How do you think he explained the fact that the ratio is not exactly 3:1?
In Figure 2-11, assume (as in corn plants) that allele Aencodes an allele that produces starch in pollen and allele a does not. Iodine solution stains starch black. Howwould you demonstrate Mendel’s first law directly withsuch a system?
What could be the genotypic and phenotypic ratios for a typical mendelian trait showed in the picture?
When Gregor Mendel performed his breeding experiments on pea plants, he discovered that tallness in the plants is inherited through a simple dominant trait (coded "T") with shortness as the recessive trait (coded "t"). Imagine that Mendel bred a homozygous dominant pea plant with a pea plant heterozygous for tallness. Draw a Punnett Square to help you answer this question and the next one: In the 1st generation of offspring, we expect the genotypes (for tallness) to include… a) 50% homozygous dominant, 50% heterozygous b) 100% heterozygous c) 50% tall, 50% short d) 100% tall e) None of the above
When Gregor Mendel performed his breeding experiments on pea plants, he discovered that tallness in the plants is inherited through a simple dominant trait (coded "T") with shortness as the recessive trait (coded "t"). Imagine that Mendel bred a homozygous dominant pea plant with a pea plant heterozygous for tallness. Draw a Punnett Square to help you answer this question and the next one: In the 1st generation of offspring, we expect the phenotypes (for tallness) to include… a) 50% homozygous dominant, 50% heterozygous b) 100% heterozygous c) 50% tall, 50% short d) 100% tall e) None of the above
In Mendel’s 1866 publication as shown in Figure 1-4,he reports 705 purple-flowered (violet) offspring and224 white-flowered offspring. The ratio he obtained is3.15:1 for purple: white. How do you think he explainedthe fact that the ratio is not exactly 3:1?
Using the example of pea color in Mendel’s pea plants, can you devise equations to determine the allele frequencies of A and a from the genotype frequencies of aa, Aa, and AA?