In roses, two pathways combine to produce orange colored flowers in wild type. Two heterozygous roses AaBa are crossed to each other. The progeny will be: 9 orange:7 white All orange 9 orange: 3 red: 3 yellow: 1 white 9 orange: 4 red: 3 yellow 9 orange: 4 yellow: 3 red

In roses, two pathways combine to produce orange colored flowers in wild type. Two heterozygous roses AaBa are crossed to each other. The progeny will be: 9 orange:7 white All orange 9 orange: 3 red: 3 yellow: 1 white 9 orange: 4 red: 3 yellow 9 orange: 4 yellow: 3 red

Name: In roses, two pathways combine to produce orange colored flowers in wi
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Description: In roses, two pathways combine to produce orange colored flowers in wild type. Two heterozygous roses AaBa are crossed to each other. The progeny will be: 9 orange:7 white All orange 9 orange: 3 red: 3 yellow: 1 white 9 orange: 4 red: 3 yellow 9

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 2ACQ: Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are...

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Given the following information, determine the inheritance of flower color in this plant and determine the genotypes of the parental individuals, which are from pure- breeding lines. CROSS 1 CROSS 2 purple X colorless all purple 9/16 purple colorless X red all purple as in Cross 1 F1 F1 F2 F2 3/16 red 4/16 colorless
In Primula vulgaris (primrose), purple flowers are dominant to white flowers, and short plants are dominant to tall plants. The genes controlling these two traits are on different chromosomes. You cross a true-breeding purple, short plant with a true-breeding white, tall plant and then intercross the resulting F1 offspring. In the F2 offspring, you find the following phenotypes: Purple, short Purple, tall 608 161 White, short White, tall 173 58 With your knowledge of the x' test, you will determine whether the outcomes of the F1 intercross corresponds to expectations based on Mendelian genetics. 1. What is your null hypothesis for the outcome of the F1 intercross? Write it here: 2. Based on your null hypothesis, how many individuals do you expect in each of the phenotypic classes? Write your expectations below. Purple, short Purple, tall White, short White, tall 3. What are the degrees of freedom for this test? Write your answer here:
The crossing of two orange-flowering plants results in 61 orange-flower progeny and 27 white-flower progeny. The crossing of two orange-flowering F1 plants generates a similar progeny ratio as observed for the parental cross, while the crossing of white-flowering F1 plants only produces white-flowering progeny. What is a likely explanation for these results?
Imagine you are crossing two plants that have these two genotypes—Tt and tt. What are the two genotypes of the gametes that the Tt plant can make? What is the one genotype of the gametes that the tt plant can make? Set up a Punnett square to analyze the cross. Does the Punnett square need to have four boxes or just two? If you were crossing a TT plant with a tt plant, how many boxes would be necessary in a Punnett square?
A particular flower can be blue, red, or white. A pure-breeding red-flowered plant is crossed with a pure-breeding white-flowered one. The F 1 are then crossed to produce an F 2 generation. Which of the following phenotypic ratios in the F 2 indicate that flower color in these two strains is controlled by two genes? A)2:1 B)3:1 C)1:2:1 D)9:3:4
In a variety of newly discovered rose plant, flowers are either white or red. Two genes were discovered to control flower color. Both genes, A and B, work in tandem in a biochemical pathway, and dominant forms of both genes are required for red flowers. A doubly-homozygous red-flowered plant is crossed with a doubly-homozygous white-flowered plant. The F1 offspring all have red flowers and are self-crossed to produce the F2. Determine the ratios of phenotypes in the F2 generation.
A variegated trait in plants is analyzed using reciprocal crosses. The following results are obtained: Variegated female × Normal male ↓ 1024 variegated + 52 normal Normal female × Variegated male ↓ 1113 normal + 61 variegated Explain this pattern of inheritance.
A type of tomato (Solanum lycopersicum) produces fruit in three possible colors: red, green, and orange. You cross a true-breeding orange-fruited plant with a true-breeding green-fruited plant, and all the F1 offspring are red. You intercross the red F1s, and the resulting F2 generation consists of 108 red-, 40 orange-, and 44 green-fruited plants. 1) What type of epistasis is acting (dominant, recessive, duplicate dominant, or duplicate recessive)? 2) Assign the phenotypes to a modified 9:3:3:1 ratio. (Do not just calculate the actual ratio of the phenotypes.) Red : _____Orange : _____Green: _____
Three recessive traits in garden pea plants are as follows: yellow pods are recessive to green pods, bluish green seedlings are recessive to green seedlings, creeper (a plant that cannot stand up) is recessive to normal. A true breeding normal plant with green pods and green seedlings was crossed to a creeper with yellow pods and bluish green seedlings. The F1 plants were then crossed to creepers with yellow pods and bluish green seedlings. The following results were obtained for the F2 offspring: 2059 green pods, green seedlings, normal 151 green pods, green seedlings, creeper 281 green pods, bluish green seedlings, normal 15 green pods, bluish green seedlings, creeper 2041 yellow pods, bluish green seedlings, creeper 157 yellow pods, bluish green seedlings, normal 282 yellow pods, green seedlings, creeper 11 yellow pods green seedlings, normal Construct a genetic map that shows the…
Given the following pathway on the image: G and H are dominant alleles of the two independently assorting genes that produce an enzyme that catalyzes the conversion of one pigment to another, and g and h are recessive alleles that are non-functional. A true-breeding blue plant is crossed with a white plant of genotype ggHH. The F1s are allowed to self-mate. 1. What proportions would you expect in the F2 progeny? 2. Which is the epistatic allele?
In maize starchy seed is dominant to sugary. Two pure breeding plants are crossed. One grown from a starchy seed and the other grown from a sugary seed. These F1 seeds later grew into mature plants and were allowed to self fertilize. What is the phenotype of the F1 seeds and what is the expected ratio of starchy to sugary seeds in the cobs born on the F1 plants?
A cross is made between BbCc and bbcc plants and the offspring occur in the following numbers: 98 BbCc, 58 Bbcc, 54 bbCc, 90 bbcc. Genes b and c are linked on the same chromosome. What is the distance between the genes b and c?