BIOLOGY W/MASTERINGBIOLOGY MOD >B<
11th Edition
ISBN: 9780134846156
Author: Campbell
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 15, Problem 12TYU
SCIENTIFIC INQUIRY • DRAW IT Assume you are mapping genes A, B, C, and D in Drosophila. You know that these genes are linked on the same chromosome, and you determine the recombination frequencies between each pair of genes to be as follows: A-B, 8%; A-C, 28%; A-D, 25%; B-C, 20%; B-D, 33%.
(a) Describe how you determined the recombination frequency for each pair of genes.
(b) Draw a chromosome map based on your data.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
You design Drosophila crosses to provide recombinationdata for gene a, which is located on the chromosome shownin Figure 15.12. Gene a has recombination frequencies of14% with the vestigial wing locus and 26% with the browneye locus. Approximately where is a located along thechromosome?
1. What is the processes of mitosis and meiosis indicating where the similarities lie and in which aspects they differ. What is the primary reason for each type of cell division by indicating the roles that mitosis and meiosis play in human reproduction and development?
2. Explain what is meant by the term ‘linked genes’ with respect to homologous recombination. For example, if an organism is heterozygous at two genetic loci on the same chromosome, in what way does the position of these alleles with respect to each other affect how they are transmitted to gametes during meiosis?
mapping three linked genes, the heterozygous AaBbCc was crossed to aabbcc individual the following phenotypes were obtained:
ABC 4
abc 2
ABc 150
abC 141
aBc 18
AbC 20
Abc 30
aBC 35
A) What are the alleles found on each parental chromosome(genotypes of the parents)?
B) How many double recombinants(cross over) were there?
c) what is the linear arrangement of loci on the chromosome?
Chapter 15 Solutions
BIOLOGY W/MASTERINGBIOLOGY MOD >B<
Ch. 15.1 - Which one of Mendel's laws describes the...Ch. 15.1 - MAKE CONNECTIONS Review the description of...Ch. 15.1 - WHAT IF? Propose a possible reason that the first...Ch. 15.2 - A white-eyed female Drosophila is mated with a...Ch. 15.2 - Neither Tim nor Rhoda has Duchenne muscular...Ch. 15.2 - MAKE CONNECTIONS Consider what you learned about...Ch. 15.3 - When two genes are located on the same chromosome,...Ch. 15.3 - VISUAL SKILLS For each type of offspring of the...Ch. 15.3 - Prob. 3CCCh. 15.4 - Prob. 1CC
Ch. 15.4 - Prob. 2CCCh. 15.4 - Prob. 3CCCh. 15.5 - Gene dosagethe number of copies of a gene that are...Ch. 15.5 - Reciprocal crosses between two primrose varieties,...Ch. 15.5 - WHAT IF? Mitochondrial genes are critical to the...Ch. 15 - What characteristic of the sex chromosomes allowed...Ch. 15 - Why are males affected by X-Iinked disorders much...Ch. 15 - Why are specific alleles of two distant genes more...Ch. 15 - Prob. 15.4CRCh. 15 - Explain how genomic imprinting and inheritance of...Ch. 15 - A man with hemophilia (a recessive, sex-linked...Ch. 15 - Pseudohypertrophic muscular dystrophy is an...Ch. 15 - A wild-type fruit fly (heterozygous for gray body...Ch. 15 - A planet is inhabited by creatures that reproduce...Ch. 15 - Using the information from problem 4, scientists...Ch. 15 - A wild-type fruit fly (heterozygous for gray body...Ch. 15 - Assume that genes, A and B are on the same...Ch. 15 - Two genes of a flower, one Controlling blue (B)...Ch. 15 - You design Drosophila crosses to provide...Ch. 15 - Banana plants, which are triploid, are seedless...Ch. 15 - EVOLUTION CONNECTION Crossing over is thought to...Ch. 15 - SCIENTIFIC INQUIRY DRAW IT Assume you are mapping...Ch. 15 - WRITE ABOUT A THEME: INFORMATION The continuity of...Ch. 15 - SYNTHESIZE YOUR KNOWLEDGE Butter flies have an X-Y...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Identify me theme or themes exemplified by (a) the sharp quills of a porcupine (b) the development of a multice...
Campbell Biology in Focus
How does the removal of hydrogen atoms from nutrient molecules result in a loss of energy from the nutrient mol...
Seeley's Anatomy & Physiology
True or false? Some trails are considered vestigial because they existed long ago.
Biological Science
Some people consider Pasteur or Koch to be the Father of Microbiology, rather than Leeuwenhoek. Why might they ...
Microbiology with Diseases by Body System (4th Edition)
1. The correct sequence of levels forming the structural hierarchy is
A. (a) organ, organ system, cellular, che...
Human Anatomy & Physiology (Marieb, Human Anatomy & Physiology) Standalone Book
Knowledge Booster
Learn more about
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
- 1. In Drosophila melanogaster (fruit fly) experiment, if we are going to cross male and female red-eyed fruit flies, we have the resulting offspring ratio of 50% red-eyed for female, 25 % for red-eyed male and 25% for white-eyed male. Females which are either homozygous or heterozygous for a trait still expressed eye redness whereas males can easily be affected. Why is this so? a. Females are the carriers of a gene for eye redness b. Y chromosome is responsible for red eyes in fruit flies, c. The gene for eye redness is an X-link dominant trait, d. Having a red-eyed trait is dominantly expressed by femalesarrow_forwardEVOLUTION CONNECTION Crossing over is thought to beevolutionarily advantageous because it continually shufflesgenetic alleles into novel combinations. Until recently, it wasthought that the genes on the Y chromosome might degenerate because they lack homologous genes on the X chromosomewith which to pair up prior to crossing over. However, when theY chromosome was sequenced, eight large regions were foundto be internally homologous to each other, and quite a few ofthe 78 genes represent duplicates. (Y chromosome researcherDavid Page has called it a “hall of mirrors.”) Explain what mightbe a benefit of these regions.arrow_forwardConstruct a genetic map using the following data: A line of drosophila has been constructed with three recessive mutations: sc = loss of thorax bristles ("scute") ec = roughened eye surface ("echinus") vg = vestigial wings The dominant, wild-type version of each allele could be written as vg + or ec+, but we will write them just as "+" for simplicity. P generation: We cross homozygous recessive flies (sc ec vg / sc ec vg) with homozygous dominant (wild-type) flies (+ + + / + + +). F1 generation: All of the flies produced by the parental cross have the dominant (wild-type) phenotype. Genetically, these flies are: (sc ec vg / + + + ). F2 generation: We produce an F2 generation by mating the F1 flies with homozygous recessive flies (sc ec vg / sc ec vg) This cross produces an F2 generation with 8 different phenotypes: All wild type features – 430 echinus – 5 echinus, vestigial – 29 scute – 25 scute, echinus – 44 scute, echinus, and vestigial – 417 scute,…arrow_forward
- EC4. In a test-cross of trihybrid drosophila the following phenotypes and number of offspring were found. Without doing any calculations, answer the following questions: +++ 669 abc 653 ++c 121 ab+ 139 +b+ 2280 a+c 2215 +bc 3 a++ 2 a) What were the genotypes of the parental strains? (fill in) b). What is the gene order?arrow_forward6. You have conducted exhaustive experiments studying the inheritance of four genes (A,B,C and D) that are all on chromosome 3 in Drosophila melanogaster. You have recorded the following frequencies of recombination in offspring for each of the genes: Gene pair: Frequency of Recombination:a b 20 a c 28 a d 5 b c 10 b d 15 c d 24 1. What is the order of the genes on the chromosome? 2. Why is the distance between genes a and c as shown in the dataarrow_forwardThe genetic map was based on crosses in Drosophila involving the three sex-linked genes a, b and c. “a” gives red eyes, “b” gives normal wings and “c” gives black body. The recombination frequencies between these genes are as follows; a and b is 23.8, b and c is 2.6 and a and c is 28.1, respectively. Could you draw a basic genetic map based on distance between these genes using dots to show distance(s)? Could you make one fundamental comment using these distances based on genetic linkage?arrow_forward
- Q. What are the possible changes in chromosome number and structure that will occur in a living species with six haploid chromosomes ? You can give the phenotypic changes that will occur on a real and / or hypothetical sample.arrow_forwardA mapping experiment in strawberries shows that the genes for color and plant height are separated by 16cM. In a cross between a heterozygous plant (CcHh) and a homozygous recessive plant, what percent of offspring would inherit a chromosome carrying cH from the heterozygous parent.... 1. if the heterozygous parent’s alleles are in repulsion? _________________ 2. if the heterozygous parent’s alleles are in coupling? _________________arrow_forwardVISUALIZE Sketch a series of diagrams showing each of the following, making sure to end each series with haploid cells: (a)How a pair of alleles for a single locus segregate in meiosis (b)How the alleles of two unlinked loci assort independently in meiosis (c)How the alleles of two linked loci undergo genetic recombinationarrow_forward
- CONNECT Two loci exhibit 5% recombination between them. How many map units apart are they?arrow_forward3. With modern molecular methods it is now possibleto examine variants in DNA sequence from a verysmall amount of tissue like a hair follicle or even asingle sperm. (See the Fast Forward Box Mappingthe Crossovers that Generate the Chromosomes ofIndividual Human Sperm.) You can consider thesevariants to be alleles of a particular site on a chromosome (a locus; loci in plural). For example,AAAAAAA, AAACAAA, AAAGAAA, andAAATAAA at the same location (call it B) on homologous autosomes in different sperm might becalled alleles 1, 2, 3, and 4 of locus B (B1, B2, etc.).John’s genotype for two loci B and D is B1B3andD1D3. John’s father was B1B2and D1D4, while hismother was B3B3and D2D3.a. What is (are) the genotype(s) of the parental typesperm John could produce?b. What is (are) the genotype(s) of the recombinanttype sperm John could produce?c. In a sample of 100 sperm, 51 of John’s sperm werefound to be B1and D1, while the remaining 49 spermwere B3D3. Can you conclude whether the B and Dloci…arrow_forwardBased on the text for mosquitoes: 1. Describe how the pest mates. 2. Compare the genetic relationship of the parent pest and its offsring. Use the word:GENETICALLY DIFFERENT, GENETIC RECOMBINATION 2. Predict what factors in the environment can be altered to stop the pest from reproducingarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY