In crosses made among four-o'clock plants, red flower color plants are crossed with white flower color plants. All the offspring show a pink flower color. If a pink-flowered plant is crossed with a red-flowered plant, what will be the phenotypic ratios of their offspring? 1/4 red flowered, 1/4 white flowered, 1/2 pink flowered 1/3 red flowered, 2/3 pink flowered 1/2 red flowered, 1/2 pink flowered 3/4 red flowered, 1/4 pink flowered 1/2 white flowered, 1/2 pink flowered

In crosses made among four-o'clock plants, red flower color plants are crossed with white flower color plants. All the offspring show a pink flower color. If a pink-flowered plant is crossed with a red-flowered plant, what will be the phenotypic ratios of their offspring? 1/4 red flowered, 1/4 white flowered, 1/2 pink flowered 1/3 red flowered, 2/3 pink flowered 1/2 red flowered, 1/2 pink flowered 3/4 red flowered, 1/4 pink flowered 1/2 white flowered, 1/2 pink flowered

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 2ACQ: Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are...

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In crosses made among four-o'clock plants, red flower color plants are crossed with white flower color plants. All the offspring show a pink flower color. If a pink-flowered plant is crossed with another pink-flowered plant, what will be the phenotypic ratios of their offspring? All pink flowered 3/4 pink flowered, 1/4 red flowered 1/2 red flowered, 1/2 pink flowered 1/2 white flowered, 1/2 pink flowered 1/4 red flowered, 1/4 white flowered, 1/2 pink flowered
A white flowered plant is crossed with a plant that is heterozygous for the trait. What percentage of the offspring will have purple flowers? What is the phenotypic ratio? What is the genotypic ratio? What % will be purple? 50% What % will be white?
In flowers, purple flower color is dominant and denoted by "P" while white flower color is recessive and is denoted by "p". In a monohybrid cross between 2 heterozygous purple flowers, what is the expected phenotypic offspring ratio?
Many of the color varieties of summer squash are determined by two different interacting genes A and B: AA or Aa gives white colored squash, aaBB or aaBb gives yellow squash, and aabb produces green squash. A plant producing white squash is self-crossed. Three fourths of the offspring produces white squash; one fourth produces green squash. What is the genotype of the parent plant producing white squash?
Given the following information, determine the inheritance of flower color in this plant and determine the genotypes of the parental individuals, which are from pure- breeding lines. CROSS 1 CROSS 2 purple X colorless all purple 9/16 purple colorless X red all purple as in Cross 1 F1 F1 F2 F2 3/16 red 4/16 colorless
In a dihybrid cross, a homozygous plant with purple and axial flowers (PPAA) is crossed with a homozygous plant with white and top flowers (ppaa). If the purple flower trait is dominant over white flowers and axial flowers are dominant over top flowers, what phenotypic ratio will be produced in the F1 generation? purple and axial flowers: white and top flowers – 3: 1 - purple and axial: Purple and top: white and axial: white top – 9: 3: 3: 1 all plants with purple and axial flowers – 4: 0 purple and axial flowers: white and top flowers – 1: 1 -
In certain plants, tall (T) is dominant to short (t). If a heterozygous plant is crossed with a homozygous short plant, what is the probability that the offspring will be short? Show the punnett square please.
In snapdragons, red flower color is incompletely dominant over white. Cross 2 heterozygous pink flowers. What is the phenotypic ratio?
In a unique species of plants, flowers may be yellow, blue, red, or mauve. All colors may be true breeding. If plants with blue flowers are crossed to red-flowered plants, all F1 plants have yellow flowers. When these produced an F2 generation, the following ratio was observed: 9/16 yellow: 3/16 blue: 3/16 red: 1/16 mauve In still another cross using true-breeding parents, yellow-flowered plants are crossed with mauve-flowered plants. Again, all F1 plants had yellow flowers and the F2 showed a 9:3:3:1 ratio, as just shown. (a) Describe the inheritance of flower color by defining gene symbols and designating which genotypes give rise to each of the four phenotypes. (b) Determine the F1 and F2 results of a cross between truebreeding red and true-breeding mauve-flowered plants.
Many of the color varieties of summer squash are determined by two different interacting genes A and B: AA or Aa gives white colored squash, aaBB or aaBb gives yellow squash, and aabb produces green squash. A plant producing white squash is crossed with a plant producing green squash. One half of the offspring produces white squash; the other half produces green squash. What is the genotype of the parent plant producing white squash? AAbb AABB AaBb Aabb AaBB
If you do the following cross: TtRryy x ttRrYy (where T=tall, t=dwarf; R=round, r=wrinkled; Y=yellow seeds, y=green seeds) then what proportion of the offspring would you expect to be: dwarf, round, yellow 1/32 O 3/32 O 3/64 O 1/16 O 3/16 1/8 O 3/8 O 1/2
A Pea plant with axial flower position, tall stem length, and green seed pod color is cross with another pea plant that has axial flower position, dwarf stem length, and yellow seed pod color. Assume heterozygosity for all dominant trait. How many genotype will be formed from the cross?