In black-eye pea, the T and P genes are linked and 20 m.u. and P_ = pennate leaves, pp = oval leaves. T_ = thick pods, tt = narrow pods. A PpTt plant with the dominant alleles in REPULSION, is SELFED. The probability of an oval-leafed, narrow podded plant in the progeny is: HINT: it helps if you draw the chromosomes and the possible gametes! 1% 25% 10% 5% 40%

In black-eye pea, the T and P genes are linked and 20 m.u. and P_ = pennate leaves, pp = oval leaves. T_ = thick pods, tt = narrow pods. A PpTt plant with the dominant alleles in REPULSION, is SELFED. The probability of an oval-leafed, narrow podded plant in the progeny is: HINT: it helps if you draw the chromosomes and the possible gametes! 1% 25% 10% 5% 40%

Name: In black-eye pea, the T and P genes are linked and 20 m.u. and P_ = p
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: In black-eye pea, the T and P genes are linked and 20 m.u. and P_ = pennate leaves, pp =ovalleaves. T_ = thick pods, tt = narrow pods. A PpTt plant with the dominant alleles in REPULSION, isSELFED. The probability of an oval-leafed, narrow podded pl

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 16QP: More Crosses with Pea Plants: The Principle of Independent Assortment Consider the following cross...

See similar textbooks

Similar questions

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?
Variations on a Theme by Mendel Pea plants usually have white or red flowers. A strange pea-plant variant is found that has pink flowers. A selfcross of this plant yields the following phenotypes: 30 red flowers 62 pink flowers 33 white flowers What are the genotypes of the parents? What is the genotype of the progeny with red flowers?
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.
Imagine that you are performing a cross involving seed texture in garden pea plants. You cross true-breeding round and wrinkled parents to obtain F1 offspring. Which of the following experimental results in terms of numbers of plants are closest to what you expect in the F2 progeny? a. 8lOroundseeds b. 8lOwrinkledseeds c. 405:395 round seeds:wrinkled seeds d. 610:190 round seeds:wrinkled seeds
The F1 flies described in question 1 were mated with brown-eyed flies from a true-breeding line. What phenotypes would you expect the offspring to have? (a) all with red eyes (b) all with brown eyes (c) half with red eyes and half with brown eyes (d) red-eyed females and brown-eyed males (e) brown-eyed females and red-eyed males
More Crosses with Pea Plants: The Principle of Independent Assortment Consider the following cross: P1: AABBCCDDEE aabbccddee F1: AaBbCcDdEe (self-cross to get F2) What is the chance of getting an AaBBccDdee individual in the F2 generation?
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
More Crosses with Pea Plants: The Principle of Independent Assortment Consider the following cross in pea plants, in which smooth pea shape is dominant to wrinkled, and yellow pea color is dominant to green. A plant with smooth yellow peas is crossed to a plant with wrinkled green peas. The offspring produced peas that were all smooth and yellow. What are the genotypes of the parents? What are the genotypes of the offspring?
. In the tiny model plant Arabidopsis, the recessive allele hyg confers seed resistance to the drug hygromycin, and her, a recessive allele of a different gene, confers seed resistance to herbicide. A plant that was homozygous hyg/hyg ⋅ her/her was crossed with wild type, and the F1 was selfed. Seeds resulting from the F1 self were placed on petri dishes containing hygromycin and herbicide.a. If the two genes are unlinked, what percentage of seeds are expected to grow?b. In fact, 13 percent of the seeds grew. Does this percentage support the hypothesis of no linkage? Explain. If not, calculate the number of map units between the loci.c. Under your hypothesis, if the F1 is testcrossed, what proportion of seeds will grow on the medium containing hygromycin and herbicide?
In corn, purple kernels (P) are dominant over yellow kernels (p). Starchy kernels (Su) are dominant over sugary kernels (su). A corn plant grown from a purple and starchy kernel is crossed with a plant grown from a yellow and sugary kernel. (15 points total) The following progeny (kernels) are produced: Phenotype: Number: purple, starchy 150 purple, sugary 142 yellow, starchy 161 yellow, sugary 115
n pea plants, tall (T) is dominant to dwarf (t) and yellow (Y) is dominant to green (y). In a cross of true-breeding tall yellow peas x dwarf green peas, what proportion of the progeny are tall with yellow peas? 100% 50% 25% 75% Two genes are located at opposite ends of a chromosome that is 200 map units long. How are they expected to recombine? With a frequency of approximately 200%. With a frequency of approximately 50%. With a frequency of approximately 100%. With unknown frequency because of double crossing-over. Below is a pedigree of a family in which all the people in generation II are dead (indicated with a slash) because of political unrest in their country. Which children in generation III could be traced to the grandmother in this pedigree by using only mitochondrial DNA sequences? B, C, and E. A, B, and C. A and D. A, B, C, D, and…
In corn, the gene for kernel color has two alleles: purple (P) or red (p). There is also a gene where the dominant allele (I) prevents kernel color, whereas the recessive allele (i) allows color to develop. If you cross plants heterozygous for both traits, what will be the expected phenotypic ratio of the offspring? What is the probability that the genotype of an offspring will be PPii? A child with Type O blood is born to a mother with Type A blood. What is the genotype of the child? What is the genotype of the mother? What are the possible genotypes of the father?