Two inbred lines of sunflowers (P1 and P2) produce different total weights of seeds per flower head…. Show more Two inbred lines of sunflowers (P1 and P2) produce different total weights of seeds per flower head. The mean weight (in grams) and the variance of seed weights in different generations are listed in the table below. 1. Use the information to determine VG, VE and VP for this trait. 2. Determine H 2 for this trait. Generation Mean Weight/Head (g) Variance P1 105 3.0 P2 135 3.8 F1 122 3.5 F2 125 7.4 •

Two inbred lines of sunflowers (P1 and P2) produce different total weights of seeds per flower head…. Show more Two inbred lines of sunflowers (P1 and P2) produce different total weights of seeds per flower head. The mean weight (in grams) and the variance of seed weights in different generations are listed in the table below. 1. Use the information to determine VG, VE and VP for this trait. 2. Determine H 2 for this trait. Generation Mean Weight/Head (g) Variance P1 105 3.0 P2 135 3.8 F1 122 3.5 F2 125 7.4 •

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 5RQ: Imagine that you are performing a cross involving seed texture in garden pea plants. You cross...

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What phenotypic ratio would you expect to see if you self-fertilized a plant that was heterozygous for two traits? 9:3:3:1 3:1 All offspring would have the same phenotype It is impossible to predict this based on the information given
Use the following information to answer the next question. Some Traits in Garden Pea Plants In pea plants, the genes for seed shape, seed colour, and plant height demonstrate independent assortment. The alleles for these genes are symbolized as follows: R (round) >r (wrinkled) Y (yellow) > y (green) Answer: Seed shape Seed colour - Plant height T (tall) > t (short) What percentage of the gametes produced by a pea plant heterozygous for both seed shape and seed colour would be expected to contain both the allele for wrinkled and the allele for green? (Record your answer as a whole number. Do not include the percentage sign)
What genotypic ratio would you expect to see.if you self-fertilized a plant that was heterozygous for two traits? 9:3:3:1 3:1 9:6:1 It is impossible to predict this based on the information given
In plants known as “ four o’ clocks”, the allele for the dominant red- flower color is is completely dominant over the allele for white-flowers. A gardener allows several heterozygous pink-flowered four o'clock to self pollinate and collects 200 seeds. Identify the flower color phenotypes and theoretical percentage.
Use the following information to answer the next question. A Venn Diagram Showing the Relationship Between Oogenesis and Spermatogeneis. Oogenesis 1 NOTE: Similarities are represented by area 2. Differences are represented by areas 1 or 3. Match the numbered regions with the descriptions below. Spermatogenesis 3 Four viable gametes produced: Occurs in gonads: Daughter cells equal in size Unequal cytoplasmic division ▶
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 Parent 2 B1B1B2B2B3B3b4b4 x b1b1b2b2b3b3B4B4 a.) Compute for the contribution of the dominant allele. b.) Compute for the fruit weight of parental 1 and parental 2. c.) Provide the genotype and phenotype of the F1. d.) Compute for the frequencies of the different individuals in the F2.
Plant height is controlled by 5 gene pairs. The homozygous dominant is 200 cm tall while the homozygous recessive exhibits 80 cm height. Assume that the alleles have equal contribution and have cumulative effects. The F1 and F2 of the two parents below were studied. Parent 1 Parent 2 DID,D2D2D3D3dąd, dsds dıdıd2d2d3d3DąD4 D5D5 a. Compute for the contribution of the dominant allele. b. Compute for the height of parent 1 and parent 2. Provide the genotype and phenotype of the F1. d. Compute for the frequencies of the different individuals in the F2 using the Pascal's triangle. e. Provide the phenotypes of the F2 and their frequencies. С.
> NEXT A BOOKMARK Question 23/28 According to the probability of the pea plant offspring in chart 2, what percentage of the offspring will be yellow in color? Use the diagrams below to answer the questions that follow. 23 Pea Plants Chart 1 A 5% Punnett Square B) 19% с) 30% Aa Aa D 25% Aa A a E) 75% Chart 2 AaBb x AaBb AB Ab aB ab Key AB AABB AABB Ab AABB AABB AaBb AA - Green BB - Smooth AAbb AaBb Aabb AABB AaBb aa - Yellow aB AaBb aaBB aaBb bb - Rough ab Aabb aaBb aabb
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Use the figure and the following description to answer the question(s) below. In a particular plant, leaf color is controlled by gene locus D. Plants with at least one allele D have dark green leaves, and plants with the homozygous recessive dd genotype have light green leaves. A true- breeding, dark- leaved plant is crossed with a light- leaved one, and the F1 offspring is allowed to self- pollinate. The predicted outcome of the F2 is diagrammed in the Punnett square shown in the figure, where 1,2,3, and 4 represent the genotypes corresponding to each box within the square. D d D 1 2 4 Which of the boxes marked 1- 4 correspond to plants with a heterozygous genotype? 2 and 3 1 1,2, and 3 2, 3, and 4 3.