Your answer is correct.
The system involves 2, unlinked genes that represent a case of recessive , epistatic inheritance.
Suppose you have a plant with petals that are normally blue. Suddenly you see some white-petaled...
Suppose you have a plant with petals that are normally blue. Suddenly you see some white-petaled plants. Cross 1: You cross the white with the blue and you get all an F1 population that is all blue. In the F2 generation you see a ratio of 101:33 blue to white-petaled plants. Another line of flowers shows pink petals. Cross 2: You cross the pink with the blue and once again the F1 generation shows all plants with blue petals. However,...
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3A. The petals of the cornflower are normally blue. Two pure-breeding lines were obtained from color variants found in nature; the first line had pink petals, and the second line had white petals. The following crosses were made between pure lines, with the results shown: Parents blue x white blue x pink pink x white blue blue blue 101 blue, 33 white 192 blue, 63 pink 272 blue, 121 white, 89 pink a. How...
A plant with red petals is crossed to a plant with blue petals. (red X blue). The F1 generation are all purple petals. When the F1 plants self-fertilize (purple X purple) the F2 generation are purple:red:blue:white in a 9:3:3:1 ratio. Draw the biochemical pathway for the pigments, showing where each gene acts in the pathway.
In the plant B. jankalski, two genes control the synthesis of pigment in the flower petals. A homozygous B. jankalskiplant with green flowers is crossed with a homozygous B. jankalskiplant with yellow flowers. All the F1 plants have green flowers. When the F1 self-fertilize, the F2 generation plants have green or chartreuse or yellow flowers in the ratio 12:3:1. A) Draw the biosynthetic pathway for these flower pigments, indicating where the two genes act. B) State the genotypes for all three...
A horticulturist sought to test the hypothesis that flower bolor in the plant blue-eyed Mary Collins parviflorais controlled by a single gone locus where paired alles have a dominant-recessive relationship. The horticulturist crossed two plants that produced flowers of different colors, white and magenta, which he believed were true breeding The horticulturist observed that all of the plants resulting from his cross produced blue flowers. When the horticulturist crossed the F1 plants with each other he obtained the following F2...
In a certain plant, flowers can be either white, red or blue. The following crosses were performed with different flower colour varieties: Cross 1: P: red x red F1: all red F2: all red Cross 2: P: blue x red F1: 148 blue, 149 red, 103 white Cross 3: P: blue x white F1: all blue F2: 221 blue, 79 red, 100 white Based on the crosses, how many genes control flower colour? Include a chi-square test to support your...
BR In harebells, wild type flower colour is blue. You have found three white petalled mutants which are homozygous pure breeding strains. When you cross each of these with a wild type pure breeding strain, all the offspring have blue flowers, and the F2 gives a 3:1 ratio of blue to white. When you cross two of the white mutants together, the Fl generation are all blue! When you self the FI, the F2 generation gives a ratio of 9...
In an experiment, homozygous dominant plants with purple flowers were crossed with homozygous recessive plants with white flowers. Mendel collected the seeds from this cross, grew F1-generation plants, crossed them to form a second generation, and then analyzed the plants of the resulting F2 generation. What results did he probably get? 1/2 the F1 and 3/4 of the F2 generation flowers were white 1/2 the F1 and 1/4 of the F2 generation flowers were purple 3/4 of the F1 and...
You decide that you want to replicate some of Mendel’s original results. You begin your experiment with plants that have true breeding traits, one set of plants that have purple flowers and round seeds, the other with white flowers and wrinkled seeds. You do a cross and the progeny (F1 generation) are all purple flowering and produce round seeds. What is the probability that a cross between two F1's will yield offspring that are white and with wrinkled seeds? Seed...
(1) The hardy geranium, Geranium lanuginosum, is native to the Himalayas and is widely cultivated due to its brilliant blue flowers, but flowers can be dark blue, light blue, speckled blue, and white. You have identified 2 genes involved in flower color. The alabaster gene catalyzes the conversion of a colorless precursor into a light blue pigment. The amount of pigment that is produced is determined by the number of functional copies of the alabaster gene. Normally, the pigment is...