EP CONNECT ONLINE ACCESS FOR BIOLOGY
20th Edition
ISBN: 9781260494655
Author: Raven
Publisher: MCG COURSE
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Textbook Question
Chapter 13, Problem 2S
Assume that the genes for seed color and seed shape are located on the same chromosome. A plant heterozygous for both genes testcrossed wrinkled green with the following results:
green, wrinkled 645
green, round 36
yellow, wrinkled 29
yellow, round 590
What were the genotypes of the parents, and how far apart are these genes?
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Chapter 13 Solutions
EP CONNECT ONLINE ACCESS FOR BIOLOGY
Ch. 13.1 - Describe sex-linked inheritance in fruit flies.Ch. 13.1 - Prob. 2LOCh. 13.2 - Prob. 1LOCh. 13.2 - Explain the genetic consequences of dosage...Ch. 13.3 - Prob. 1LOCh. 13.4 - Prob. 1LOCh. 13.4 - Explain the relationship between frequency of...Ch. 13.4 - Prob. 3LOCh. 13.5 - Prob. 1LOCh. 13.5 - Prob. 2LO
Ch. 13.5 - Prob. 3LOCh. 13 - Inquiry question Mendel did not examine plant...Ch. 13 - What would Mendel have observed in a dihybrid...Ch. 13 - Prob. 2DACh. 13 - Why is the white-eye phenotype always observed in...Ch. 13 - In an organisms genome, autosomes are a. the...Ch. 13 - What cellular process is responsible for genetic...Ch. 13 - The map distance between two genes is determined...Ch. 13 - How many map units separate two alleles if the...Ch. 13 - How does maternal inheritance of mitochondrial...Ch. 13 - Which of the following genotypes due to...Ch. 13 - Prob. 1ACh. 13 - As real genetic distance increases, the distance...Ch. 13 - Down syndrome is the result of trisomy for...Ch. 13 - Genes that are on the same chromosome can show...Ch. 13 - The A and B genes are 10 cM apart on a chromosome....Ch. 13 - Prob. 6ACh. 13 - Color blindness is caused by a sex-linked,...Ch. 13 - Assume that the genes for seed color and seed...Ch. 13 - A low frequency of calico cats are male (about...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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 colorarrow_forwardA cross is carried out between two pure lines of tomato plants, one having regular leaves and red fruit and the other having potato leaves and yellow fruit. The F1 generation all have regular leaves and red fruit. The F1 individuals are then crossed with one another. Question text The expected phenotypic ratio for leaf shape and fruit colour genes is 9:3:3:1, if both genes are on different chromosomes and assort independently during gamete formation. The information below represents two sets of data collected from the above cross. Data Set 1 is from a population of 5000 tomato plants and Data Set 2 is from a population of 50 tomato plants. Phenotypes Observed Probabilities Data Set 1(N = 5000) Data Set 2(N = 50) Regular Red 0.58 0.050 Regular Yellow 0.16 0.29 Potato Red 0.20 0.050 Potato Yellow 0.060 0.61 A. Compare both data sets to the expected probabilities. Are there any significant differences between the observed results and the expected…arrow_forwardIn 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?arrow_forward
- Determine the order of these genes on the chromosome.arrow_forwardIn corn, a pair of genes determines leaf shape and another pair determines pollen shape. A ragged-leafed plant with round-pollen was crossed to a ragged-leaf plant with angular pollen, and the resultant progeny were classified as follows: 186 ragged-leaf round-pollen 174 ragged-leaf angular pollen 57 smooth-leaf round pollen 63 smooth-leaf angular-pollen provide your hypothesis of the genotypes for the two parents. According to your hypothesis, what numbers would you have expected for each of the four classes of progeny? Follow the format of the number with the phenotypes in the question above. Test your hypothesis statistically using the chi-square method and indicate whether you accept or reject your hypothesis. Show your solutions.arrow_forwardImagine that the genes for seed color and seed shape are located on the same chromosome. A cross is made between two true-breeding plants. One plant produces green wrinkled seed (rryy) and the second parent produced round yellow seeds (RRYY). A test cross is made between the F1 generation with the following results: green, wrinkled 645 green round 36 yellow wrinkled 29 yellow round 590 a) Draw the chromosomes of parents and four types of offsprings and show the recombinant and non-recombinants in the offsprings. b) What is the recombination frequency between two loci?arrow_forward
- List the genes found on each chromosome in the parents used in the testcross.arrow_forwardConsider three yellow, round peas, labeled A, B, and C. Each was grown into a plant and crossed to a plant grown from a green, wrinkled pea. Exactly 100 peas derived from each cross were sorted into phenotypic classes as follows: A: 51 yellow, round 49 green, round B: 100 yellow, round C: 24 yellow, round 26 yellow, wrinkled 25 green, round 25 green, wrinkled What are the genotypes of plants A, B, and C? (Use gene symbols of your own choosing; be sure to define each one.)arrow_forwardRenner carried out reciprocal crosses between two types of the evening primrose, Oenothera hookeri and O. muricata, known to have the same chromosome constitution. When the seed parent was O. hookeri, the plastids of the progeny were yellow; but when the seed parent was O. muricata, the plastids of the progeny were green. How might this difference in the results of reciprocal crosses be explained?arrow_forward
- Large ear of corn has a total of 433 grains, including 26 Yellow & Shrunken, 73 Purple & Shrunken, 63 Yellow & Smooth, and 271 Purple & Smooth. Determine whether the ratio of corn kernels support the hypothesis that the plant is heterozygous.arrow_forwardA cross was made between a plant that has blue flowers and purpleseeds and a plant with white flowers and green seeds. The F1 generationwas then allowed to self-fertilize. The following data were obtained:F1 generation: All offspring have blue flowers with purple seeds.F2 generation: 208 blue flowers, purple seeds; 13 blue flowers,green seeds; 19 white flowers, purple seeds; and 60 white flowers,green seeds. Total = 300 offspring.Start with the hypothesis that blue flowers and purple seeds aredominant traits and that the two genes assort independently.Calculate a chi square value. What does this value mean withregard to your hypothesis? If you decide to reject your hypothesis,which aspect of the hypothesis do you think is incorrect (i.e., blueflowers and purple seeds are dominant traits, or the idea that thetwo genes assort independently)?arrow_forwardshows the results of a dihybrid cross involving seed shape and seed color. a. What proportion of the round and yellow F2 progeny from this cross is homozygous at both loci? b. What proportion of the round and yellow F2 progeny from this cross is homozygous at least at one locus?arrow_forward
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