Two genes control fruit color in tomatos. Plants of genotype AABB were mated to plants of genotype aabb. The F, were intermated to produce an F2 generation that consisted of 109 orange, 455 red and 36 yellow fruited plants. Which type of epistasis appears to be operating here? Select one: O a. Duplicate Genes with Cumulative Effect O b. Single Recessive Epistasis O c. Dominant/Recessive Interaction O d. Single Dominant Epistasis

Two genes control fruit color in tomatos. Plants of genotype AABB were mated to plants of genotype aabb. The F, were intermated to produce an F2 generation that consisted of 109 orange, 455 red and 36 yellow fruited plants. Which type of epistasis appears to be operating here? Select one: O a. Duplicate Genes with Cumulative Effect O b. Single Recessive Epistasis O c. Dominant/Recessive Interaction O d. Single Dominant Epistasis

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Description: Two genes control fruit color in tomatos. Plants of genotype AABB were mated to plants ofgenotype aabb. The F, were intermated to produce an F2 generation that consisted of 109orange, 455 red and 36 yellow fruited plants. Which type of epistasis app

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter13: Patterns In Inherited Traits

Section: Chapter Questions

Problem 6GP: In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele...

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Two genes control fruit color in tomatos. Plants of genotype AABB were mated to plants of genotype aabb. The F, were intermated to produce an F2 generation that consisted of 534 red and 116 yellow fruited plants. Which type of epistasis appears to be operating here? Select one: O a. Duplicate Dominant Epistasis O b. Single Dominant Epistasis O c. Single Recessive Epistasis O d. Dominant/Recessive Interaction O e. Duplicate Genes with Cumulative Effect O f. Duplicate Recessive Epistasis
Two genes control fruit color in tomatos. Plants of genotype AABB were mated to plants of genotype aabb. The F1 were intermated to produce an F2 generation that consisted of 540 red and 31 yellow fruited plants. Which type of epistasis appears to be operating here? Select one: O a. Duplicate Recessive Epistasis O b. Dominant/Recessive Interaction O c. Duplicate Genes with Cumulative Effect O d. Single Dominant Epistasis O e. Duplicate Dominant Epistasis O f. Single Recessive Epistasis
A researcher crosses two white-flowered lines ofAntirrhinum plants as follows and obtains the followingresults:pure line 1 × pure line 2↓F1 all whiteF1 × F1↓F2 131 white29 reda. Deduce the inheritance of these phenotypes; useclearly defined gene symbols. Give the genotypes ofthe parents, F1, and F2.b. Predict the outcome of crosses of the F1 with eachparental line.
In certain species of flies, eye color is controlled by sim-·ple dominance by a single pair of alleles. A red-eyed fly was crossed with a white-eyed fly, both of whose parents had white eyes. All of their offspring (both female and male) had red eyes.a. Which is dominant, the allele for red eyesor the allele for white eyes?b. What is the genotype of the white-eyed parents?c. If the white-eyed parent was mated with one of the red-eyed offspring, what phenotypic ratio wouldyou expect regarding eye color?
In a test cross, peas of an unknown genotype are crossed with peas of a known genotype. In this example, smooth peas are the unknown and wrinkled peas are the known (rr). If half of the offspring from that cross are smooth and half are wrinkled, what is the genotype of the unknown plant? O a. Homozygous dominant: RR O b. Homozygous recessive: rr Oc. Incomplete dominance d. Heterozygous dominant: Rr CLEAR MY CHOICE
In pea plants, the allele for round seeds (R) is dominant and the allele for wrinkled seeds (r) is recessive. Under what conditions would we observe wrinkled seeds in a pea plant?A. When the plant has a genotype RRB. When the plant inherits a dominant allele from both parentsC. When the plant inherits a recessive allele from both parentsD. When a plant has a heterozygous allelic pair of the gene for seed shape
A mouse from a true-breeding population with normal gait was crossed to a mouse displaying an oddgait called dancing. The F1 animals all showednormal gait.a. If dancing is caused by homozygosity for the recessive allele of a single gene, what proportion ofthe F2 mice should be dancers?b. If mice must be homozygous for recessive allelesof each of two different genes to have the dancing phenotype, what proportion of the F2 shouldbe dancers if the two genes are unlinked?(Assume that all the mice in the populationwith normal gait were homozygous fordominant alleles.)c. When the F2 mice were obtained, 42 normal and8 dancers were seen. Use the chi-square test todetermine if these results better fit the one-genemodel from part (a) or the two-gene model frompart (b).
In pea plants, round peas (R) are dominant to wrinkled peas (r). You do a test cross between a pea plant with wrinkled peas (genotype rr) and a plant of unknown genotype that has round peas. Result: 4 plants with round peas. What is the unknown parent? Use Punnett square on homework to help answer the question. O a. Homozygous dominant O b. Heterozygous O c. Homozygous recessive O d.
In the example below, crossing you left thumb over your right thumb is dominant T to crossing your right over left recessive t. Identify the genotype of the individual shown below: OShutterstock / robynleig O A. homozygous dominant (TT) O B. heterozygous dominant (Tt) or homozygous dominant (TT) OC. homozygous recessive (tt) O D. Cannot be determined from information provided
In Labrador retrievers, two genes determine fur color: the E gene and the B gene. Black fur (B) is dominant to brown fur (b). However, the presence of (ee) will overshadow and create a puppy with yellow fur. Create a Punnett square crossing 2 Labs that are heterozygous for both genes. Then color code your Punnett Square based on the resulting phenotypes. Don’t forget to take epistasis into account!
In peas, yellow seed (Y) is dominant over green seed (y). Inthe F2 generation of a monohybrid cross that begins when adominant homozygote is crossed with a recessive homozygote,you would expecta. three plants with yellow seeds to every plant with greenseeds.b. plants with one yellow seed for every green seed.c. only plants with the genotype Yy.d. only plants that produce yellow seeds.e. Both c and d are correct.
a. State a hypothesis explaining the inheritance of flower color in painted tongues. b. Assign genotypes to the parents, F₁ progeny, and F2 progeny for all five crosses. c. In a cross between true-breeding yellow and true-breeding lavender plants, all of the F1 progeny are bronze. If you used F₁ plants to produce and F2 generation, what phenotypes in what ratios would you expect? Are there any genotypes that might produce a phenotype that you cannot predict from earlier experiments, and if so, how might this alter the phenotypic ratios among the F2 progeny?