Q: Draw the genetic map using the following two-point cross data. Locus1 Locus2 Recombination…
A: Genetic map: It is a map that shows the linkage of genes in a chromosomes. Alfred Strutevant, was…
Q: Construct a chromosome map from the following charts showing crossover frequencies for linkage…
A: A genetic map is a chromosomal map that depicts the relative positions of genes and other…
Q: The following map shows a test crossing experiment that was conducted to find out the relative order…
A: Double cross over would happen if two cross over takes place at the same moment. That means only the…
Q: Construct a map of the chromosome, with the most accurate map distances, from the following…
A: Genetic linkage is explained as the closeness of genes on a chromosome (closely packed DNA molecule)…
Q: Which one of the following represents only a pericentric inversion of AB * CDEF? ( * denotes the…
A: Chromosomal inversion is a rearrangement of the chromosome by breaking at a point is attached back…
Q: Gene Combination Recombination Frequency G/H 15.1% G/I 7.5% H/I 22.6% Which of the following gene…
A: Given, Recombination frequency or % Recombination 15.1% or 15.1 map units /cM - - > In G/H gene…
Q: The profile includes 4 STR loci. (D8S1179, D21S11, D7S820, CSF1PO) At how many of these is the…
A: Short Tandem Repeat Analysis STR analysis is a molecular technique by which short tandem repeats…
Q: In the sample data from Sordaria shown in the picture: Count the total number of first and second…
A: the total number of crossing over and the total number of non-crossing over indicates the total…
Q: Consider two maize plants:a. Genotype C/c m ; Ac/Ac+, where cm is an unstable allele caused by a Ds…
A: Ac and C are unlinked, that the chromosome-breakage frequencyis negligible, and that mutant c /C is…
Q: In a series of two-point mapping crosses involving five genes located on chromosome II in…
A: Recombination is the mixing of the sequences present on the homologous chromosomes. The…
Q: In a three-point linkage analysis, the RF values for three genes were determined as the following:…
A: Alfred H. Sturtevant was the first to discover gene mapping. In order to determine the relative…
Q: Which of the following statements about linkage disequilibrium is false? a.) A new mutation first…
A: Linkage disequilibrium (LD) is defined as the non-random association of alleles at different loci.…
Q: A geneticist identifies 117 recombinant offspring out of a total of 1,359. What is the recombination…
A: Recombination frequency is the frequency with which a single chromosomal crossover will take place…
Q: There are three genes located on the same chromosome: G, H, and I. The recombination frequencies…
A: A number that describes the proportion of recombinant offspring produced in a genetic cross between…
Q: Genes D, E, F, and Gare located on the same chromosome. The recombination frequencies (RF) are as…
A: Recombination frequency gives us the proportion of offsprings that are not parental types but…
Q: he pairwise map distances for four linked genes are as follows: A-B = 28 m.u., B-C = 15 m.u., C-D =…
A: Genetics, the study of heredity normally and of genes particularly. genetic science forms one among…
Q: For two genes that are genetically unlinked but physically linked because they are on the same…
A: Two genes are said to be genetically unlinked when they assort independently. The genetically…
Q: In a series of two-point map crosses involving five genes locatedon chromosome II in Drosophila, the…
A: There are five genes in Drosophila's chromosome II and the crosses yield offspring with different…
Q: An individual is heterozygous for a reciprocal translocation, with the following chromosomes: A • B…
A: Translocation is defined as transfer of chromosomal segments from one to another chromosome.…
Q: Recombination frequencies between three loci in corn are shown in the following table: Loci…
A: Recombination frequency is the frequency with which a single chromosomal crossover will take place…
Q: You have the following DNA coding sequence of a wild-type allele: 5’-ATG TTC CAG CTA GAT GAT ATG CTG…
A: This question has more than one to be answered. This is against the rules of bartleby.com and hence…
Q: In Drosophila (fruit flies), pink eyes (P), curled wings (C), a hairy body (H), and an ebony body…
A: option a is correct
Q: What are characteristics of two loci being in linkage disequilibrium? O a. The two loci are located…
A: Linkage disequilibrium is a association of Alleles on different loci but on the same chromosome.…
Q: How to calculate recombination frequency between three genes? How does the map unit correlate with…
A: To find out the order of genes on a chromosome, a comparison of recombination frequencies may also…
Q: You have already localized the genes to the same chromosome by deletion mapping, and now decide that…
A: A test cross is one that involves cross between an individual (with unknown genotype) with a…
Q: For this particular family, what is the recombination rate between the D17S74 marker and the breast…
A: Recombination is the process by which the DNA is broken and recombined to form a new combination of…
Q: In a mapping cross, you determine that the recombination frequency between: loci Q and Pis 9% loci Q…
A: The term recombination frequency can be defined as the percentage of recombinant organisms obtained…
Q: The cross GE/ge × ge/ge produces the following progeny: GE/ge 80 ge/ge 90 gE/ge 15 Ge/ge 20…
A: Recombination frequency is defined as the frequency of single chromosomal crossing over that usually…
Q: (a) What types of progeny (fertile or semi-sterile, green or yellow-green) would you predict from…
A: The term translocation refers to a rearrangement that takes place when part of a chromosome move to…
Q: Genes E, F, and D are linked in that order. The distance between D and E is 1 cM, and the distance…
A: The F1 generation, in simple terms, is the first generation of offspring generated by a pair of…
Q: Consider two maize plants:a. Genotype C/cm ; Ac/Ac+, where cm is an unstableallele caused by a Ds…
A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA…
Q: A series of two-point crosses were carried out among five loci (E, F, G, H, and I), producing the…
A: When two genes are near enough on the same chromosome, they are considered to be connected because…
Q: Recombination frequencies between four genetically-linked loci in corn are shown in the following…
A: Recombination frequency is a measure of genetic linkage and is used in the creation of a genetic…
Q: Select one: а. -H- G- b. –|-G -H- - С. -H –G - d. G– Н— Г- -
A: Step 1 A linkage or chromosome map is a linear graphic representation of the sequence of genes…
Q: Here are the results of the testcross: Green-eyes, wild-type wings 245 Green-eyes, miniature wings…
A: 6) The number of flies with green eyes and and miniature wings are 232, these organisms are least in…
Q: 近 In 1911, Thomas Hunt Morgan collected the following crossover gene frequencies while studying…
A: The genes are the hereditary unit of an organism. The genes are present in the chromosome that is…
Q: From a cross between e+ f+ g+ and e− f − g− strains ofNeurospora, recombination between these…
A: Hi there! Since you have posted multiple questions, we are answering only first two sub-parts.…
Q: The following recombinant frequencies were found between genes A, B, C, D, and E. Determine the…
A: Mapping of linked genes on the chromosomes can be done by using the percentage or frequency of…
Q: If 2 genes on the same chromosome have a recombination frequency of .01, what is the genetic…
A: Genetics is a part of science worried about the investigation of genes, genetic variety, and…
Q: Recombination frequencies between three loci in corn are shown in the following table: Loci…
A: Recombination frequency is the frequency with which a single chromosomal crossover will take place…
Q: First used in Drosophila, recombination frequencies can help map relative positions of genes along…
A: Crossing over takes place due to the exchange of genetic material between two homologous chromosomes…
Q: Given the experimental set up below, and knowing the genes for stalked eyes (st) and black bodies…
A: To determine the distance between the stalk eyed and black bodied we follow following steps:…
Q: What does a recombination frequency of 50 indicate?
A: Recombination frequency is the proportion of the number of recombinant offsprings resulted in a…
Q: Which of the following statements are true regarding linkage? Select ALL that apply. When the map…
A: Linkage is a tendency of the genes present on a chromosome to remain linked together and also passed…
Q: ecombination frequencies have been determined between four genes (A, B, C and D) as follows: A-B:…
A: Genes are hereditary units that can be found on chromosomes. With the help of genes, genetic…
Q: Below is the mapping data from three different crosses of Hfr strains with separate samples of an F-…
A: Hfr is a bacterium that has a recombined plasmid incorporated into its chromosomal DNA. Conjugation…
Q: Please find the attachment
A: Recombination refers to the process by which pieces of DNA are broken and recombination in order to…
Q: Genes D, E and F are located on the same chromosome. From a three-point testcross mapping…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: A small-scale pedigree study involving 15 families with a total of 50 children was performed to…
A: C. z = 0.2 indicating no linkage Synopsis Genome-wide experiments are rapidly changing our…
Recombination frequencies between four genetically-linked loci in corn are shown in the following table:
Loci Recombination Frequency (%)
L and Q 20
Q and R 50
R and L 30
Q and W 13
L and W 7
What is the order of the genes on the chromosome?
(note: The same answer can be represented forward or backwards. e.g. A B C D = D C B A)
| LQWR |
| RQWL |
| LRQW |
| QRLW |
| RLWQ |
Step by step
Solved in 2 steps with 1 images
- Recombination frequencies between four genetically-linked loci in corn are shown in the following table: Loci Recombination Frequency (%) R and Q 45 W and Q 60 R and W 15 Q and L 10 L and R 35 What is the order of the genes on the chromosome? (note: The same answer can be represented forward or backwards. e.g. A B C D = D C B A) RQWL LQWR QWLR QRLW WRLQRecombination frequencies between three loci in corn are shown in the following table: Loci Recombination frequency (%) R and W2 17 R and L2 35 W2 and L2 18 What is the order of the genes on the chromosome?In a series of two-point mapping crosses involving five genes located on chromosome II in Drosophila, the following recombinant (single-crossover) frequencies were observed: pr–adp 29% pr–vg 13 pr–c 21 pr–b 6 adp–b 35 adp–c 8 adp–vg 16 vg–b 19 vg–c 8 c–b 27 (a) Given that the adp gene is near the end of chromosome II (locus 83), construct a map of these genes. (b) In another set of experiments, a sixth gene, d, was tested against b and pr: d–b 17% d–pr 23% Predict the results of two-point mapping between d and c, d and vg, and d and adp.
- In a series of two-point map crosses involving five genes locatedon chromosome II in Drosophila, the following recombinant (single-crossover) frequencies were observed:pr–adp 29pr–vg 13pr–c 21pr–b 6adp–b 35adp–c 8adp–vg 16vg–b 19vg–c 8c–b 27 If the adp gene is present near the end of chromosome II(locus 83), construct a map of these genes.In a series of two-point map crosses involving five genes locatedon chromosome II in Drosophila, the following recombinant (single- crossover) frequencies were observed:pr–adp 29pr–vg 13pr–c 21pr–b 6adp–b 35adp–c 8adp–vg 16vg–b 19vg–c 8c–b 27 In another set of experiments, a sixth gene (d) was testedagainst b and pr, and the results were d - b = 17% andd - pr = 23%. Predict the results of two-point mapsbetween d and c, d and vg, and d and adp.Consider a maize plant: Genotype C/cm ; Ac/Ac+ where cm is an unstable colorless allele caused by Ds insertion. What phenotypic ratios would be produced and in what proportions when this plant is crossed with a mutant c/c Ac+/Ac+? Assume that the Ac and c loci are unlinked, that the chromosome-breakage frequency is negligible, and the C allele encodes pigment production.
- Draw the genetic map using the following two-point cross data. Locus1 Locus2 Recombination Frequency (%) Locus1 Locus2 Recombination Frequency (%) buckY captAm 50 falcoN tchallA 39 buckY falcoN 50 falcoN visioN 50 buckY natashA 11 falcoN wandA 39 buckY tchallA 50 falcoN wasP 5 buckY visioN 37 natashA tchallA 50 buckY wandA 50 natashA visioN 44 buckY wasP 50 natashA wandA 50 captAm falcoN 30 natashA wasP 50 captAm natashA 50 tchallA visioN 50 captAm tchallA 50 tchallA wandA 50 captAm visioN 50 tchallA wasP 42 captAm wandA 10 visioN wandA 50 captAm wasP 26 visioN wasP 50 falcoN natashA 50 wandA wasP 33Recombination frequencies have been determined between four genes (A, B, C and D) as follows: A-B: 20%, B-C: 50%, A-D: 50%, C-D: 5% Which of the four genes is/are likely linked on the same chromosome?You have already localized the genes to the same chromosome by deletion mapping, and now decide that the best way to accomplish the mapping is to conduct two simultaneous three-point testcross experiments. The genes you are investigating are as follows: N = round leaves, n = notched leaves; H = smooth stems, h = hairy stems; R = purple flowers, r = red flowers; B = grey seeds, b = black seeds; and Y = green pods, y = yellow pods. Earlier experiments you have done already established that gene B is in the middle of this gene cluster, so you design both three-point test crosses to include that gene. Cross #1 is designed as RrHhBb x rrhhbb while cross #2 is NnBbYy x nnbbyy. The results of both crosses are given in the table below. Based on the information given, determine the arrangement of these five genes including the position of each allele in the heterozygous fly and the distances between each pair of genes. (Hint: treat each experiment separately, knowing that gene B is in the…
- Genes D, E and F are located on the same chromosome. From a three-point testcross mapping experiment, the following phenotypes were observed in the offspring: D E F 365 d E F 3 d e f 367 D e f 4 d E f 110 D E f 25 D e F 105 d e F 21 1. Which is the correct gene sequence? A. EFD B. DEF C. EDF D. FED 2. What is the distance between D and E in mu? 3. What is the distance between F and E in mu? 4. What is the distance between D and F in mu? 5. What is the coefficient of coincidence?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?From a cross between e+ f+ g+ and e− f − g− strains ofNeurospora, recombination between these linkedgenes resulted in a few octads containing the followingordered set of spores:e+ f+ g+e+ f+ g+e+ f − g+e+ f − g+e− f − g−e− f − g−e− f − g−e− f − g−a. Where was recombination initiated?b. Did crossing-over occur between genes e and g?Explain.c. Why do you end up with 2 f+ : 6 f − but 4 e+: 4 e−and 4g+: 4g−?d. Could you characterize these unusual octads as MIor MII for any of the three genes involved?Explain.