In a cross between a heterozygous tall pea plant and a dwarf pea plant predict the...
In a cross between a heterozygous tall pea plant and a dwarf pea plant predict the ratios of the offspring's genotypes and phenotypes?
Homework Answers
Assume that the gene "T" codes for tall peas and the gene "t" codes for dwarf peas and T is dominant over t. The genotype if the tall pea plant is Tt (heterozygous) and the genotype of dwarf pea plant is tt. Now, the cross between these two plants will have the offspring with the following genotypes.
Tt* tt = Tt, Tt, tt, tt
Thus, the 50% of the offspring contains the genotype Tt with tall phenotype
Another 50% of the offspring contains the genotype tt with dwarf phenotype
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In a cross between a heterozygous tall pea plant and a dwarf pea
plant predict the...
GENETICS: Assume that a cross is made between a heterozygous tall pea plant and a homozygous...
GENETICS:
Assume that a cross is made between a heterozygous tall pea plant and a homozygous short pea plant. Fifty offspring are produced in the following frequency: 30 = tall; 20 = short What frequency of tall and short plants is expected? Compute a Chi-square value associated with the appropriate test of significance. How many degrees of freedom are associated with this test of significance?
Suppose that hybridization of a purple-flowered tall pea plant with a purple-flowered dwarf pea plant produced...
Suppose that hybridization of a purple-flowered tall pea plant with a purple-flowered dwarf pea plant produced the following progeny: Purple flowers, tall 58 Purple flowers, dwarf 64 White flowers, tall 15 White flowers, dwarf 21 Use the symbols A and a to represent the alleles that govern flower color and B and b to represent the alleles that govern plant height. a) What are the genotypes of the parent plants and each of the different type of progeny? b) Test...
A heterozygous pea plant that is tall with purple flower, TtPp, is allowed to self-fertilize. Tall...
A heterozygous pea plant that is tall with purple flower, TtPp, is allowed to self-fertilize. Tall (T) is dominant over dwarf (t), Purple (P) is dominant over white (p). In the offspring, the probability of plants that are short with purple flowers will be?
You perfor a dihybrid cross of a true breeding tall pea plant that has terminal flowers...
You perfor a dihybrid cross of a true breeding tall pea plant that has terminal flowers (flowers on the ends of the stems) (TTaa) with a true breeding short plant that has axial flowers (AA). Predict the ratios and phenotypes of the Fi and F2 generations. Show your work to receive full credit!
3. In pea plants, T is the allele for tall plants, while t is the allele for dwarf plants. If you have a tall plant, demonstrate with a testcross how it could be determined if the plant is homozy...
3. In pea plants, T is the allele for tall plants, while t is the allele for dwarf plants. If you have a tall plant, demonstrate with a testcross how it could be determined if the plant is homozygous tall or heterozygous tall. 4. Explain how incomplete dominance is different from complete dominance, a example of incomplete dominance
3. In pea plants, T is the allele for tall plants, while t is the allele for dwarf plants. If you have...
If you have an F1 generation that is heterozygous for the tall/dwarf allele, cross them to...
If you have an F1 generation that is heterozygous for the tall/dwarf allele, cross them to produce an F2 generation. Draw a Punnett Square for that cross here. a. In the F2 generation, what is the probability that the first 3 pea plants you grow will all be tall? You must show your work. b. In the same F2 population, find the probability that 5 out of 7 plants will be tall. Use the bionomial expansion equation. This procedure is...
In pea plants, tall (T) is dominant and short (t) id recessive. A heterozygous tall plant...
In
pea plants, tall (T) is dominant and short (t) id recessive.
A heterozygous tall plant is crossed with a short plant.
What is the expected phenotypic ratio?
In pea plants, tall (T) is dominant and short (t) is recessive. A heterozygous tall plant is crossed with a short plant. What is the expected phenotypic ratio? all offspring will be tall 3:1 1:2:1 9:3:3:1 1:1 all offspring will be short
An F1 tall, round seed pea plant is crossed with a dwarf, wrinkled seed pea plant....
An F1 tall, round seed pea plant is crossed with a dwarf, wrinkled seed pea plant. The following offspring are observed: Tall, round: 510 Tall, wrinkled: 495 Dwarf, round: 490 Dwarf, wrinkled: 505 a. What is the expected phenotype ratio? WW or ###.#, depending on what you think the answer is. b. What is the calculated chi-square value? Format your answer with 1 significant digit (...). Sure, you can try to guess it 10 times, but work it out so...
Complete a dihybrid cross between a pea plant (plant 1) with white flowers and wrinkled seeds...
Complete a dihybrid cross between a pea plant (plant 1) with white flowers and wrinkled seeds with a plant (plant 2) with purple flowers and round seeds. Fill in the Punnett square between Plant 1 and Plant 2. Plant 2 is heterozygous for flower color and homozygous for seed color. What are the phenotypic ratios of the F1 generation? Phenotypes: purple flowers with round seeds: purple flowers with wrinkled seeds: white flowers with round seeds: white flowers with wrinkled seeds:...
1. A pea plant with round seeds is crossed with a pea plant that has wrinkled...
1. A pea plant with round seeds is crossed with a pea plant that has wrinkled seeds. For the cross, indicate each of the following: a) the genotype of each of the parents if the dominant phenotype is heterozygous. b) What gametes will each parent produce c) if two round plants from the Fl generation are crossed, what would be the resulting genotypes and phenotypes of the F2 generation? Provide the Punnett square as well as your answer below.
GENETICS:
Assume that a cross is made between a heterozygous tall pea plant and a homozygous short pea plant. Fifty offspring are produced in the following frequency: 30 = tall; 20 = short What frequency of tall and short plants is expected? Compute a Chi-square value associated with the appropriate test of significance. How many degrees of freedom are associated with this test of significance?
You perfor a dihybrid cross of a true breeding tall pea plant that has terminal flowers (flowers on the ends of the stems) (TTaa) with a true breeding short plant that has axial flowers (AA). Predict the ratios and phenotypes of the Fi and F2 generations. Show your work to receive full credit!
3. In pea plants, T is the allele for tall plants, while t is the allele for dwarf plants. If you have a tall plant, demonstrate with a testcross how it could be determined if the plant is homozygous tall or heterozygous tall. 4. Explain how incomplete dominance is different from complete dominance, a example of incomplete dominance
3. In pea plants, T is the allele for tall plants, while t is the allele for dwarf plants. If you have...
In
pea plants, tall (T) is dominant and short (t) id recessive.
A heterozygous tall plant is crossed with a short plant.
What is the expected phenotypic ratio?
In pea plants, tall (T) is dominant and short (t) is recessive. A heterozygous tall plant is crossed with a short plant. What is the expected phenotypic ratio? all offspring will be tall 3:1 1:2:1 9:3:3:1 1:1 all offspring will be short
An F1 tall, round seed pea plant is crossed with a dwarf, wrinkled seed pea plant. The following offspring are observed: Tall, round: 510 Tall, wrinkled: 495 Dwarf, round: 490 Dwarf, wrinkled: 505 a. What is the expected phenotype ratio? WW or ###.#, depending on what you think the answer is. b. What is the calculated chi-square value? Format your answer with 1 significant digit (...). Sure, you can try to guess it 10 times, but work it out so...
1. A pea plant with round seeds is crossed with a pea plant that has wrinkled seeds. For the cross, indicate each of the following: a) the genotype of each of the parents if the dominant phenotype is heterozygous. b) What gametes will each parent produce c) if two round plants from the Fl generation are crossed, what would be the resulting genotypes and phenotypes of the F2 generation? Provide the Punnett square as well as your answer below.
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