Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 15, Problem 4TY
Summary Introduction
Introduction:
The offspring produced by the crossing between pea plants having RrYy combination and rrYy combination can be predicted by using Punnett square. In this case, R represents round seed, r represents wrinkled seed, Y represents yellow seed, and y represents green seed.
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A cross is made between a pea plant that is RrYy and one that isrrYy. What is the predicted outcome of the seed phenotypes?a. 9 round, yellow : 3 round, green : 3 wrinkled, yellow :1 wrinkled, greenb. 3 round, yellow : 3 round, green : 1 wrinkled, yellow :1 wrinkled, green
c. 3 round, yellow : 1 round, green : 3 wrinkled, yellow :1 wrinkled, greend. 1 round, yellow : 1 round, green : 1 wrinkled, yellow :1 wrinkled, green
Round (R) seed shape is dominant to wrinkled (r) seed shape in pea plants. If an RR plant is crossed with an rr plant, what is the frequency of phenotypes in the F2 generation?
1)1/4 RR, 1/2 Rr, 1/4 rr
2) All round seeds
3) 3 roundseeds, 1 wrinkled seed
4) All wrinkled seeds
In Mendelfruit plants, fruit may be either round (RR), long (rr) or oval (Rr).
Cross two oval-fruit plants. What is the phenotypic ratio of the resulting offspring? (what do they LOOK LIKE?)
Cross a round-fruit plant and an oval-fruit plant. Give the phenotypic ratio of the offspring.
Chapter 15 Solutions
Principles of Biology
Ch. 15.1 - Prob. 1CCCh. 15.1 - Why are the stamens removed from the purple...Ch. 15.1 - Prob. 3CCCh. 15.1 - Prob. 4CCCh. 15.1 - Prob. 5CCCh. 15.1 - Prob. 1TYKCh. 15.1 - Prob. 2TYKCh. 15.2 - Prob. 1BCCh. 15.2 - Prob. 2BCCh. 15.2 - Lets suppose that a cell is heterozygous for three...
Ch. 15.2 - Prob. 1TYKCh. 15.2 - Which phase of cellular division explains Mendel*s...Ch. 15.3 - Prob. 1CCCh. 15.3 - Prob. 2CCCh. 15.3 - Prob. 1TYKCh. 15.4 - Prob. 1CCCh. 15.4 - In pea plants, P is a dominant allele that confers...Ch. 15.4 - The effects of a gene may be pleiotropic because...Ch. 15.5 - Prob. 1CCCh. 15.5 - Prob. 1TYKCh. 15.5 - Prob. 2TYKCh. 15 - Experimental advantages of using pea plants...Ch. 15 - Which of the following phenomena cannot be deduced...Ch. 15 - Prob. 3TYCh. 15 - Prob. 4TYCh. 15 - Prob. 5TYCh. 15 - Prob. 6TYCh. 15 - Prob. 7TYCh. 15 - Prob. 8TYCh. 15 - A hypothetical flowering plant species produces...Ch. 15 - Prob. 10TYCh. 15 - Describe the difference between genotype and...Ch. 15 - When examining a human pedigree, what patterns do...Ch. 15 - Prob. 3CCQCh. 15 - Prob. 1CBQCh. 15 - Prob. 2CBQ
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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
- Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are dominant to green (y). What are the possible genotypes and phenotypes for a cross between PpYY and ppYy pea plants? How many squares would you need to complete a Punnett square analysis of this cross?arrow_forwardA horticulturist has a purple plant and a white plant. The horticulturist knows that purple is dominant over white. When they are bred, all of the resulting offspring are purple. What is the most likely genotype of the parent or original purple plant?arrow_forwardIn a particular plant, two genes control leaf shape and color. Round leaves (R) are dominant to jagged leaves (r). Yellow fruits (Y) are dominant to white fruits (y). If you crossed a homozygous round, heterozygous yellow plant with a heterozygous round, white plant, what are the genotypes of the plants involved in this cross? Answer RRYY X rryy?arrow_forward
- A pea plant that is (RrYy) is allowed to self-fertilize. Round seed(R) is dominant to wrinkled (r), and yellow seed (Y) is dominant togreen (y). What is the probability of producing the following groupof five seeds: two round, yellow; one round, green; one wrinkled,yellow; and one wrinkled, green?arrow_forwardConsider this cross in pea plants: Tt Rr yy Aa × Tt rr Yy Aa, whereT = tall, t = dwarf, R = round, r = wrinkled, Y = yellow, y = green,A = axial, a = terminal. What is the expected phenotypic outcomeof this cross? Have one group of students solve this problem bymaking one big Punnett square, and have another group solve it bymaking four single-gene Punnett squares and using the multiplication method. Time each other to see who gets done first.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_forward
- Considering the Mendelian traits tall (D) versus dwarf (d) and violet (W) versus white (w), consider the crosses below and determine the genotypes of the parental plants by analyzing the phenotypes of the offspring. Parental Plants Offspring tall, violet x tall, violet 9/16 tall, violet 3/16 tall, white 3/16 dwarf, violet 1/16 dwarf, white Select the one best answer. DDWW x DdWw DdWw x DdWw DdWw x ddww DdWW x DdWW DDWw x DdWwarrow_forwardImagine 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?arrow_forwardAssume that the genes for seed color and seed shape are located on the same chromosome. A plant heterozygous for both genes is 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?arrow_forward
- In crosses made among four-o'clock plants, red flower color plants are crossed with white flower color plants. All the offspring show a pink flower color. If a pink-flowered plant is crossed with a red-flowered plant, what will be the phenotypic ratios of their offspring? 1/4 red flowered, 1/4 white flowered, 1/2 pink flowered 1/3 red flowered, 2/3 pink flowered 1/2 red flowered, 1/2 pink flowered 3/4 red flowered, 1/4 pink flowered 1/2 white flowered, 1/2 pink floweredarrow_forward. Jimsom. weed plants can produce purple or white flowers and spiny or smooth seed pods. A purple spiny plant is crossed with a white spiny plant. This cross produces: 89 purple spiny; 92 white spiny; 31 purple smooth and 27 white smooth plants. What are the genotypes of the parental plants and the progeny plants? Use the letters P/p for flower color and S/s for pod texture Parent #1 –genotype:_________________________________; Parent #2 –genotype: ______________________________ b. Offspring plants – genotypes and phenotypes c. Calculate the recombination frequency using these results_________________________________ i need help finding the right answer and i need an explation on how you got it so i understand and please do it with a punnet square and show the calutions step by steparrow_forwardIn a genetic cross between a homozygous tall plant with homozygous purple flowers and a homozygous short plant with heterozygous purple flowers, how many short plants will you expect in the F2 generation if you sample 36 individuals? Both tall and purple are dominant.arrow_forward
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