Crossing true-breeding pea plants with yellow peas with true-breeding plants with green peas wielded an F1 generation with 100% offspring plants with yellow peas. The F1 plants are self- Fertilized and produce F2. In a randomly selected set of 100 peas from F2 you notice the following phenotypic numbers: 64 yellow and 36 green. Using the Hardy-Weinberg princip What is the observed frequency of the dominant allele in My AS

Crossing true-breeding pea plants with yellow peas with true-breeding plants with green peas wielded an F1 generation with 100% offspring plants with yellow peas. The F1 plants are self- Fertilized and produce F2. In a randomly selected set of 100 peas from F2 you notice the following phenotypic numbers: 64 yellow and 36 green. Using the Hardy-Weinberg princip What is the observed frequency of the dominant allele in My AS

Name: Thx! Crossing true-breeding pea plants with yellow peas with true-bree
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Description: Thx! Crossing true-breeding pea plants with yellow peas with true-breeding plants with green peasyielded an F1 generation with 100% offspring plants with yellow peas. The F1 plants are self-fertilized and produce F2. In a randomly selected set of 100

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter3: Transmission Of Genes From Generation To Generation

Section: Chapter Questions

Problem 1QP

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More Crosses with Pea Plants: The Principle of Independent Assortment Two traits are examined simultaneously in a cross of two pure-breeding pea-plant varieties. Pod shape can be either swollen or pinched. Pea color can be either green or yellow. A plant with the traits swollen and green is crossed with a plant with the traits pinched and yellow, and a resulting F1 plant is self-crossed. A total of 640 F2 progeny are phenotypically categorized as follows: 360 swollen yellow 120 swollen green 120 pinched yellow 40 pinched green a. What is the phenotypic ratio observed for pod shape? Pea color? b. What is the phenotypic ratio observed for both traits considered together? c. What is the dominance relationship for pod shape? Pea color? d. Deduce the genotypes of the P1 and F1 generations.
More Crosses with Pea Plants: The Principle of Independent Assortment Determine the possible genotypes of the following parents by analyzing the phenotypes of their children. In this case, we will assume that brown eyes (B) is dominant to blue (b) and that right-handedness (R) is dominant to left-handedness (r). a. Parents: brown eyes, right-handed brown eyes, right-handed Offspring: 3/4 brown eyes, right-handed 1/4 blue eyes, right-handed b. Parents: brown eyes, right-handed blue eyes, right-handed Offspring: 6/16 blue eyes, right-handed 2/16 blue eyes, left-handed 6/16 brown eyes, right-handed 2/16 brown eyes, left-handed c. Parents: brown eyes, right-handed blue eyes, left-handed Offspring: 1/4 brown eyes, right-handed 1/4 brown eyes, left-handed 1/4 blue eyes, right-handed 1/4 blue eyes, left-handed
uppose that goats have one gene that codes for color, where A is brown and a is white. The goats also have another gene that codes for height, where B is tall and b is short. If these two genes are unlinked, what is the probability that a cross between Aa Bb × Aa bb parents will produce three out of five offspring that are white and tall? Enter your answer as a decimal, rather than as a percentage. probability: 0.006 Please advise how it comes out to 0.006. that is the correct answer per the professor
The narrow-sense heritability of the number of peas perpod in a population of sugar snap peas is 0.5. The meanof the population is 6.2 peas per pod. A plant breederselects one plant with 6.8 peas per pod and crosses witha second plant that has 8.0 peas per pod. What is the expected numbers of peas per pod among the offspring ofthis cross?
In a field of 10,000 pea plants, a farmer observes that 8,500 exhibit the dominant round (R) seed shape. How many of the the individual plants are likely heterozygous for round seeds? 1,500, 3,700, or 4,800
An aquatic arthropod called a cyclops has antennae that are either smooth or barbed. The allele for barbed (B) is dominant over smooth (b). In the same organism, allele for non-resistance (N) to pesticides is dominant over resistance (n) to pesticide. What is the genotypic ratio of the offspring from a cross of Bbnn and bbNn cyclops? What would be the resulting phenotypic ratio if cyclops with genotypes BBnn x Bbnn mated?
EXAMPLE PROBLEM A plant with orange, spotted flowers was grown in the greenhouse from a seed collected in the wild. The plant was self-pollinated and gave rise to the following progeny: 88 orange with spots, 34 yellow with spots, 32 orange with no spots, and 8 yellow with no spots. What can you conclude about the dominance relationships of the alleles responsible for the spotted and unspotted phenotypes? What can you conclude about the genotype of the original plant that had orange, spotted flowers?
The garden flower Salpiglossis sinuata (paintedtongue) comes in many different colors. Severalcrosses are made between true-breeding parentalstrains to produce F1 plants, which are in turn selffertilized to produce F2 progeny.Parents F1 phenotypes F2 phenotypesred × blue all red 102 red, 33 bluelavender × blue all lavender 149 lavender, 51 bluelavender × red all bronze 84 bronze, 43 red, 41 lavenderred × yellow all red 133 red, 58 yellow, 43 blueyellow × blue all lavender 183 lavender, 81 yellow, 59 bluea. State a hypothesis explaining the inheritance offlower color in painted tongues.b. Assign genotypes to the parents, F1 progeny, andF2 progeny for all five crosses.c. In a cross between true-breeding yellow and truebreeding lavender plants, all of the F1 progeny arebronze. If you used these F1 plants to produce anF2 generation, what phenotypes in what ratioswould you expect? Are there any genotypes thatmight produce a phenotype that you cannot predictfrom earlier experiments, and if…
Give only typing answer with explanation and conclusion to all parts Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the resultant F1 hybrids were then crossed to generate the F2 . In the F2 there were a total of 13,923 plants with a continuous variation in heights between the two extremes and with only 3 plants as large as 47 cm high and 5 plants of 11 cm high. a) How many i) genes and ii) how many alleles are involved in determining height in this plant? b) What is the contribution of each dominant allele to the phenotype in cm?
Imagine a population 528 individual plants. In this population, 4 % of the plants produce red flowers, and 9 % produce pink flowers. The remaining plants produce white flowers. Flower colour is attributed to a single locus with two alleles. Red flowers are produced by plants that are homozygote for the R allele. White flowers are produced by plants that are homozygote for the W allele. Heterozygotes (RW) produce pink flowers. What is the expected (under Hardy-Weinberg equilibrium) number plants producing pink flowers in this population? Round your answer to the closest full number.
Pure breeding red fleshed tomatoes crossed with pure breeding yellow fleshed tomatoes produced all red fleshed tomatoes in the F1 generation. Among the 400 F2 plants, 90 were yellow. It is hypothesized that a single pair of alleles is involved and that red is dominant to yellow. Is the hypothesis consistent with the data?
In dogs, coat color maybe black, brown or white. A series of crossings between black and white dogs gave the following F2 results: 28 BLACK:13 WHITE: 9 BROWN. What is the equation that will calculate the probability of getting a combination of 1 black: 1 brown: 6 white puppies in a series of F2 litters of size 8?