II. MONOHYBRID PROBLEMS WITH INCOMPLETE DOMINANCE 8. Petunia flower color is governed by two alleles, but...
II. MONOHYBRID PROBLEMS WITH INCOMPLETE DOMINANCE
8. Petunia flower color is governed by two alleles, but neither allele is truly dominant over the other. Petunias with the genotype R R are red-flowered, those that are heterozygous (R W ) are pink, while those with the (WW ) genotype have white flowers. This is an example of incomplete dominance.
a. If a white-flowered plant is crossed with a red-flowered plant, what is the genotypic ratio of the F1?
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b. What is the phenotypic ratio of the F1?
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c. If two of the F1 offspring were crossed, what phenotypes would appear in the F2?
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d. What would be the genotypic ratio in the F2 generation?
Homework Answers
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II.
MONOHYBRID PROBLEMS WITH INCOMPLETE DOMINANCE
8. Petunia
flower color is governed by two alleles, but...
Activity 2. Incomplete Dominance 2a. Let's carry the flower example one generation further. Assume two pink-flowered...
Activity 2. Incomplete Dominance 2a. Let's carry the flower example one generation further. Assume two pink-flowered plants were crossed. What is the probability of each color appearing in the F2 generation? Red 2so Pink White A cross is made between a red flower and a pink flower (assume incomplete dominance). What is the probability of producing a white-flowered plant? 2b. EXTRA CREDIT In rabbits, the genotype BB produces a black coat color, but Bb produces a brown coat color. Rabbits...
0. In snapdragons, the alleles for flower color show incomplete dominance. CRCR produces red flowers; CWCW...
0. In snapdragons, the alleles for flower color show incomplete dominance. CRCR produces red flowers; CWCW produces white flowers and CRCW produces pink flowers. The height of the plant is determined by a separate gene with regular dominant and recessive alleles. Normal height (D) is dominant over dwarf height (d). a. A snapdragon that is heterozygous normal in height and has white flowers is crossed with a plant that is dwarf in height and has red flowers. What is the...
6. In a plant in which flower color is produced by incomplete dominance, what is the...
6. In a plant in which flower color is produced by incomplete dominance, what is the probability that the first offspring would be pink-flowered from a cross between a pink-flowered and a white-flowered plant?
LABORATORY 16-GEN 1. pink-flowered sady for these toll red-flowered plants are crossed 21) More Incomplete Dominance:...
LABORATORY 16-GEN 1. pink-flowered sady for these toll red-flowered plants are crossed 21) More Incomplete Dominance: True-breeding tall, red- dwarf white flowered plants. The resulting F1 generation consists of all tall, pink. plants. Predict the F2 phenotypic results of an F1 cross of these plants. Choose appropriate symbols for the alleles based on the letters we have used already for traits: (CR = red, CW = white, T = tall t = dwarf) CR TRW CA CR CR(W CRCW (wow...
In a different plant species, flower color is controlled by two genes that contribute equally to...
In a different plant species, flower color is controlled by two genes that contribute equally to the final flower color. Plants with red flowers have the genotype: CRCR DRDR, while plants with white flowers have the genotype: CWCW DWDW. A red flowering plant was mated to a white flowering plant and all of the F1progeny had pink flowers. These pink flowered F1 plants were allowed to self-fertilize to produce F2progeny. What is the genotype of the F1 plants that produced...
Bants and white fnowered plants show incomplete dominance ie the allele for white flowers are inc...
Bants and white fnowered plants show incomplete dominance ie the allele for white flowers are incompletely dominant and it is possible to get flowered plants b. Suppose that red flowered plants R for red flowers and the allele R' flowers are pink flowered plants, cross a pink another p nowered plant with another pink flowered plant using a Punnett square Complete the following What is the genotype of each pink fowered parent plant was it possible to get white flowered...
Name: (Last) (First) Section: 8. Flower color (20 Points) Plant X can produce magenta, blue or...
Name: (Last) (First) Section: 8. Flower color (20 Points) Plant X can produce magenta, blue or breeding white flower plant to a true b from this cross produced blue flowers. He se blue flowers, 398 white flower- and 301 magenta flower-prou generation agenta, blue or white flowers. A gardener crossed a true int to a true breeding magenta plant. All Fl progenies lue flowers. He self-crossed the Fls and obtained 895 magenta flower-producing plants in the F2 a. What is...
Genetics Experience Please The R locus determines flower color in a new plant species. Plants that...
Genetics Experience Please The R locus determines flower color in a new plant species. Plants that are genotype RR have red flowers, and plants that are rr have white flowers. However, Rr plants have pink flowers. What type of inheritance does this demonstrate for flower color in these plants? Incomplete dominance Complementation Lethal alleles Codominance Complete dominance
15. The gene for petal color in a flower has incomplete dominance, so that individuals with...
15. The gene for petal color in a flower has incomplete dominance, so that individuals with two Al alleles (AIAI) are red, individuals with two A2 alleles (A2A2) are white, and individuals with one of each allele (A1A2) are pink. In a cross between a red flower and a white flower, what is the probability of getting a pink offspring? (2 points) In a cross between a red flower and a pink flower, what is the probability of getting a...
need help on these two questions .. U. WELRY c. phenotype. d. spotyra e. karyotype 8....
need help on these two questions
.. U. WELRY c. phenotype. d. spotyra e. karyotype 8. In lilies, white flowers (W) are dominant to purple flowers (w). If two plants that are heterozygous for flower color are mated, the offspring might have which genotype? [Show Punnett square(s)] a. ww. b. Ww c. ww d. All of the above e. None of the above 9. Flower color in snapdragons is a trait showing incomplete dominance. Therefore, the flowers of a snapdragon...
Activity 2. Incomplete Dominance 2a. Let's carry the flower example one generation further. Assume two pink-flowered plants were crossed. What is the probability of each color appearing in the F2 generation? Red 2so Pink White A cross is made between a red flower and a pink flower (assume incomplete dominance). What is the probability of producing a white-flowered plant? 2b. EXTRA CREDIT In rabbits, the genotype BB produces a black coat color, but Bb produces a brown coat color. Rabbits...
0. In snapdragons, the alleles for flower color show incomplete dominance. CRCR produces red flowers; CWCW produces white flowers and CRCW produces pink flowers. The height of the plant is determined by a separate gene with regular dominant and recessive alleles. Normal height (D) is dominant over dwarf height (d). a. A snapdragon that is heterozygous normal in height and has white flowers is crossed with a plant that is dwarf in height and has red flowers. What is the...
6. In a plant in which flower color is produced by incomplete dominance, what is the probability that the first offspring would be pink-flowered from a cross between a pink-flowered and a white-flowered plant?
LABORATORY 16-GEN 1. pink-flowered sady for these toll red-flowered plants are crossed 21) More Incomplete Dominance: True-breeding tall, red- dwarf white flowered plants. The resulting F1 generation consists of all tall, pink. plants. Predict the F2 phenotypic results of an F1 cross of these plants. Choose appropriate symbols for the alleles based on the letters we have used already for traits: (CR = red, CW = white, T = tall t = dwarf) CR TRW CA CR CR(W CRCW (wow...
Bants and white fnowered plants show incomplete dominance ie the allele for white flowers are incompletely dominant and it is possible to get flowered plants b. Suppose that red flowered plants R for red flowers and the allele R' flowers are pink flowered plants, cross a pink another p nowered plant with another pink flowered plant using a Punnett square Complete the following What is the genotype of each pink fowered parent plant was it possible to get white flowered...
Name: (Last) (First) Section: 8. Flower color (20 Points) Plant X can produce magenta, blue or breeding white flower plant to a true b from this cross produced blue flowers. He se blue flowers, 398 white flower- and 301 magenta flower-prou generation agenta, blue or white flowers. A gardener crossed a true int to a true breeding magenta plant. All Fl progenies lue flowers. He self-crossed the Fls and obtained 895 magenta flower-producing plants in the F2 a. What is...
15. The gene for petal color in a flower has incomplete dominance, so that individuals with two Al alleles (AIAI) are red, individuals with two A2 alleles (A2A2) are white, and individuals with one of each allele (A1A2) are pink. In a cross between a red flower and a white flower, what is the probability of getting a pink offspring? (2 points) In a cross between a red flower and a pink flower, what is the probability of getting a...
need help on these two questions
.. U. WELRY c. phenotype. d. spotyra e. karyotype 8. In lilies, white flowers (W) are dominant to purple flowers (w). If two plants that are heterozygous for flower color are mated, the offspring might have which genotype? [Show Punnett square(s)] a. ww. b. Ww c. ww d. All of the above e. None of the above 9. Flower color in snapdragons is a trait showing incomplete dominance. Therefore, the flowers of a snapdragon...
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