Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 11.4, Problem 3CYL
Summary Introduction
To calculate:
The frequencies of the genotypes and
Introduction:
Independent assortment is the arrangement of genes during the process of recombination independently of each other located on a chromosomal locus.
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Students have asked these similar questions
In fruit flies, the allele for long wings (L) is dominant to the allele for short wings (l). If a male that is heterozygous for wing length mates with a female that has short wings what are the possible genotypes and phenotypes of their offspring? Complete the Punnett square below. What is the expected phenotypic ratio among the offspring?
What is the frequency of the heterozygous genotype if the homozygous genotype frequencies are 0.1385 (BB) and 0.5897 (bb)?
In frost moths, two alleles of one gene determine the character difference of spotted versus striped wings and two alleles of a separate, independent gene determine the character difference of orange wing background versus white wing background. The results for four matings of moth phenotypes are shown below.
Number of progeny
Mating
Parental Phenotypes
Spotted/orange
Spotted/white
Striped /orange
Striped /white
1
spotted/orange x striped/orange
623
0
637
0
2
spotted/white x striped/orange
0
0
0
712
3
spotted/white x striped/orange
122
131
128
133
4
spotted/orange x striped/white
0
0
430
422
6a) Using the information in the table above, assign a letter to each allele (make sure each allele can be uniquely identified, using Uppercase and lowercase and use a unique letter for each trait). Circle whether each allele is dominant (D) or recessive (R) below
Chapter 11 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 11.1 - describe the relationships among chromosomes,...Ch. 11.1 - Prob. 2CYLCh. 11.2 - distinguish between self-fertilization and...Ch. 11.2 - Prob. 2CYLCh. 11.3 - Prob. 1TCCh. 11.3 - Prob. 1CSCCh. 11.3 - describe the pattern of inheritance of a trait...Ch. 11.3 - Prob. 2CYLCh. 11.3 - Prob. 3CYLCh. 11.4 - Can the genotype of a plant grown from a smooth,...
Ch. 11.4 - Prob. 2TCCh. 11.4 - Prob. 1CYLCh. 11.4 - Prob. 2CYLCh. 11.4 - Prob. 3CYLCh. 11.5 - Prob. 1TCCh. 11.5 - Prob. 1CSCCh. 11.5 - Prob. 1HYEWCh. 11.5 - Prob. 1CYLCh. 11.5 - Prob. 2CYLCh. 11.6 - describe how the patterns of inheritance differ...Ch. 11.7 - If a color-deficient woman and a man with normal...Ch. 11.7 - Prob. 1CYLCh. 11.7 - explain why most sex-linked traits are controlled...Ch. 11.7 - describe the pattern of inheritance of sex-linked...Ch. 11.8 - Prob. 1TCCh. 11.8 - use pedigrees to determine the pattern of...Ch. 11.8 - Prob. 2CYLCh. 11.8 - Prob. 3CYLCh. 11.8 - Prob. 2TCCh. 11.8 - Prob. 1CTCh. 11 - Prob. 1MCCh. 11 - Prob. 2MCCh. 11 - Independent assortment means that a. two genes on...Ch. 11 - Prob. 4MCCh. 11 - Prob. 5MCCh. 11 - An organism is described as Rr, with red coloring....Ch. 11 - Prob. 2FIBCh. 11 - Prob. 3FIBCh. 11 - Genes that are present on one sex chromosome but...Ch. 11 - Prob. 5FIBCh. 11 - Define the following terms: gene, allele,...Ch. 11 - Prob. 2RQCh. 11 - Prob. 3RQCh. 11 - Prob. 4RQCh. 11 - Prob. 5RQCh. 11 - Prob. 6RQCh. 11 - Prob. 1ACCh. 11 - Prob. 2ACCh. 11 - In certain cattle, hair color can be red...Ch. 11 - In the edible pea, tall (T) is dominant to short...Ch. 11 - Prob. 3GPCh. 11 - Prob. 4GPCh. 11 - Prob. 5GP
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- In frost moths, two alleles of one gene determine the character difference of spotted versus striped wings and two alleles of a separate, independent gene determine the character difference of orange wing background versus white wing background. The results for four matings of moth phenotypes are shown below. Number of progeny Mating Parental Phenotypes Spotted/orange Spotted/white Striped /orange Striped /white 1 spotted/orange x striped/orange 623 0 637 0 2 spotted/white x striped/orange 0 0 0 712 3 spotted/white x striped/orange 122 131 128 133 4 spotted/orange x striped/white 0 0 430 422 striped= S(dominant) spotted=s (recessive) white= W(dominant) orange=w (recessive) What are the genotypes of each parent in each cross? If more than one genotype is possible, list the alternative possibilities. (Remember that each mating involves a separate set of parents, so the 4 matings involve 8 separate…arrow_forwardConsider and X-linked locus with two alleles A1 and A2. Allele A1 has an initial allele frequency of 1.0 in females and 0 in males. Use a spreadsheet (Excel) and its graphing functions to calculate the allele frequencies in males and females for 25 generations. Also plot the expected genotype frequencies in females for 25 generations.* show graph and plot *arrow_forwardIn sheep, the presence and absence of horns is considered a sex influenced trait where the horned gene is dominant in rams but not in ewes. What will be the expected genotypes and phenotypes if heterozygous ram is bred to a heterozygous ewe? Addition: In the above mating (a,b,&c), it is assumed that one-half of the expected heterozygous offspring produced are females and the other half are males.arrow_forward
- A homozygous red pigmented female beetle (bb) is bred with a black pigmented male of unknown genotype. It’s unknown if the male homozygous dominant (BB) or heterozygous (Bb) for the pigment trait. The color of their offspring will help identify the genotype of the male. What do you call this method used to determine the genotype of the male beetle? Explain your answer by using Punnett square to show possible offspring genotypes.arrow_forwardDraw a Punnet square indicating the F2 genotypes from the mating of an F1 male (QQBbHh) with an Fi female (QQBÜHH). Note: Make sure to write all the heterozygous genotypes as Gg, not gG.arrow_forwardA wild-type fruit fly (heterozygous for gray body color and red eyes) is mated with a black fruit fly with purple eyes. The offspring are wildtype, 721; black purple, 751; gray purple, 49; black red, 45. What is the recombination frequency between these genes for body color and eye color? Using information from problem 3, what fruit flies (genotypes and phenotypes) would you mate to determine the order of the body color, wing size, and eye color genes on the chromosome?arrow_forward
- Give the genotype of the parents and determine the linkage map of the three genes bm (brown midrib), v (virescent seedling), and pr (purple aleurone) in maize from the results of the cross below. Genotypes of offspring Total and Frequency percentage V bm 230 467 pr + 237 42.1% + + bm 82 161 pr V 79 14.5% V 200 395 pr bm 195 35.6% pr bm 44 86 V + 42 7.8% +arrow_forwardBriefly describe what can be expected during consanquineous matings as they disproportionally contribute to the incidence of rare autosomal recessive conditions. What is a genetic drift and what is the effect of new mutations and natural selection for populations?arrow_forwardCystic fibrosis (CF) is a recessive autosomal disorder. In certain populations of Northern European descent, the number of people born with this disorder is about 1 in 2500. Assuming Hardy- Weinberg equilibrium for this trait: A. What are the frequencies for the normal and CF alleles? B. What are the genotype frequencies of homozygous normal, heterozygous, and homozygous affected individuals? C. Assuming random mating, what is the probability that two phenotypically unaffected heterozygous carriers will choose each other as mates?arrow_forward
- In fruit flies, gray body (G) is dominant to black body (g). If a male with a black body mates with a female that is homozygous dominant for her gray body what are the possible genotypes and phenotypes of their offspring? Complete the Punnett square below. What is the expected phenotypic ratio among the offspring?arrow_forwardA population sample of 300 individuals is studied for the electrophoretic mobility of an enzyme that varies according to the genotype determined by 2 alleles, E and T of a single gene. The results are 7 individuals with genotype EE, 106 with genotype ET, and 187 with genotype TT. What are the allele frequencies of E and T, and what are the expected numbers of the 3 genotypes if random mating is assumed?arrow_forwardAfter five generations of random mating, what is the frequency of the a allele?arrow_forward
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