Chi-square Test In the pea plants use by Gregor Mendel in his study, the purple flower color is dominant over white, and the axial position on a branch is dominant over terminal. A plant believed to be heterozygous was selfed and produced flowers with the following phenotypes: 23 white terminal 68 white axial 81 purple terminal 187 purple axial a. assign alleles to the different traits purple __________ axial ___________ white ___________ terminal _______ b. refer to the image attached
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Chi-square Test
In the pea plants use by Gregor Mendel in his study, the purple flower color is dominant over white,
and the axial position on a branch is dominant over terminal. A plant believed to be heterozygous
was selfed and produced flowers with the following
23 white terminal
68 white axial
81 purple terminal
187 purple axial
a. assign alleles to the different traits
purple __________ axial ___________
white ___________ terminal _______
b. refer to the image attached
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- Use the following information about pea plants: S = spherical seeds; s = wrinkled seeds Y = yellow seeds; y = green seeds P = purple flowers; p = white flowers I = inflated pods; i = constricted pods Write the possible genotypes for the following conditions: Heterozygous for spherical seeds Homozygous for wrinkled seeds Homozygous for spherical seeds and heterozygous for flower colorB4) Construct a Punnett square using the dihybrid cross TtGg × TtGg. (TT, Tt codes for tall plants, tt for dwarf plants;GG, Gg codes for green pods, gg for yellow pods.) Number the boxes from left to right, starting at the top(see below).B5) Describe the phenotypes of boxes 2, 8, 12, and 16.B6) Describe the genotypes of boxes 4, 5, 11, and 15.F2 Cross: Tall, White, Axial x Dwarf, Violet, Terminal DdwwAA x ddWWaa Character: Stem height, Flower color & position Use fork-line method to check the possible offspring. Show and interpret all the possible genotypes and phenotypes of the offsprings.
- A) Describe the data you collect from the Purple 1 x Purple 2 cross. Predict the genotype of each of the parent plants. Explain your predictions using data from the experiment. B) Consider the offspring, the next generation (F1), from the Purple 1 x Purple 2 cross. What is the probability of a green stem plant? How do you know this? C) What is the probability in the F2 generation of a green stem offspring? Use a Punnett square(s) and quantitative data to explain your thinking. Upload your Punnett square(s).How can you determine the genotype of a plant showing the dominant phenotype of red color? A. Cross the red plant with a white plant to see how many red plants appear B. Cross the red plant with other red plants to see if any white plants appear. C. Cross the red plant with a white plant to see if any white plants appear. D. The phenotype reflects the genotype, so the plant must be homozygous for the trait.Cross 1: Purple Stem (P1) x Brown Stem (P2) = F1 Generation (all purple stem plants). Cross 2: F1 x F1 = F2 Generation (295 purple stem plants and 102 brown stem plants). a) What is the phenotype ratio of the F2 generation? b) What is the geneotype ratio of the F2 generation? c) Which trait is dominant?
- please describe 2 similarities between linkage and independent assortment# of Green Leaves _________111______________ # of White Leaves ___________35______________ What is the expected ratio of white to green F2 tobacco plants (give phenotype not genotype)? Back up your answer with a Punnett square1. What are some possible applications of genetics to plant breeding? 2. Where are genes found? CHOICES : A. CELL B. DNA C. LOCUS D. MITOCHONDRIA 3. Y. The grandfather has hairy-eared son. His son married a girl who gave birth to a boy. What are the chances that his grandson would be hairy eared too? CHOICES: A. 0% B. 25% C. 50% D. 100% Z. Why do you think so? CHOICES: A. Only male is the carrier of the disorder. B. Only female is the carrier of the disorder. C. Both male and female is the carrier of the disorder. D. Neither male nor female is the carrier of the disorder.
- In the Primula plant, the blue flower color is due to malvidin, a pigment encoded by the completely dominant gene (M). Presence of only the recessive gene (m) leads to white flowers. The P locus controls pigment synthesis in the M locus such that dominant gene (P) stops pigment production, and recessive gene (p) allows pigment production. Two plants both having the MmPp genotype were crossed. Answer the following questions and show complete solutions to support your answers. Use the branching method whenever applicable. a. What is the phenotypic ratio of the offspring?b. What type of gene interaction is exhibited by the flower color in Primula?c. What would be the probability of getting plants that are pure-breeding for blue flower color?Fruit weight is controlled by 4 gene pairs. The homozygous dominant weighs 200 g while the homozygous recessive weighs 80 g. Assume that the alleles have equal contribution and have cumulative effects. The F1 and F2 of the two parents below were studied. Parent 1 - D1D1D2D2D3D3d4d4 x Parent 2 - d1d1d2d2d3d3D4D4 Compute for the contribution of the dominant allele. Compute for the fruit weight of parental 1 and parental 2.Use the following information about pea plants: S = spherical seeds; s = wrinkled seeds Y = yellow seeds; y = green seeds P = purple flowers; p = white flowers I = inflated pods; i = constricted pods Write the phenotype produced by the following genotypes: PP Pp SS ss SSPp IiPp IIPP