A trihybrid individual with the genotype QqRrTt is testcrossed with a qqrrtt individual. The resulting offspring are as follows: QrT 4 qrT 387QRt 373 qRT 54Qrt 50 qrt 73QRT 54 qRt 5 Total = 1000 a) Determine the allele arrangement and gene order in the trihybrid parent. Give your answer using the AbC/aBc notation. b) Draw a chromosome map for these genes. Give your map distances to one decimal place. (Use underline or underscore (_) to draw the line for the map)

A trihybrid individual with the genotype QqRrTt is testcrossed with a qqrrtt individual. The resulting offspring are as follows: QrT 4 qrT 387QRt 373 qRT 54Qrt 50 qrt 73QRT 54 qRt 5 Total = 1000 a) Determine the allele arrangement and gene order in the trihybrid parent. Give your answer using the AbC/aBc notation. b) Draw a chromosome map for these genes. Give your map distances to one decimal place. (Use underline or underscore (_) to draw the line for the map)

Name: A trihybrid individual with the genotype QqRrTt is testcrossed with a
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Description: A trihybrid individual with the genotype QqRrTt is testcrossed with a qqrrtt individual. The resulting offspring are as follows: QrT 4 qrT 387QRt 373 qRT 54Qrt 50 q

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter6: Cytogenetics: Karyotypes And Chromosome Aberrations

Section: Chapter Questions

Problem 2QP: Given the karyotype shown at right, is this a male or a female? Normal or abnormal? What would the...

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A trihybrid individual with the genotype QqRrTt is testcrossed with a qgrtt individual. The resulting offspring are as follows: QrT 11 50 343 76 grT qRT grt QRt 76 357 78 9 QRt Qrt QRT Total - 1000 a) Determine the allele arrangement and gene order in the trihybrid parent. Give your answer using the AbC/aBc notation. b) Draw a chromosome map for these genes. Give your map distances to one decimal place. (Use underline or underscore () to draw the line for the map)
A trihybrid individual with the genotype AaDdEe is testcrossed with an aaddee individual. The resulting offspring are as follows: ADe 7 aDE 157 AdE 688 ade 153 ADE 125 aDe 680 Ade 182 adE 8 Total = 2000 a) b) Determine the allele arrangement and gene order in the trihybrid parent. Give your answer using the PQr/pqR notation. Draw a chromosome map for these genes. Give your map distances to two decimal places. (Use underline or underscore (_) to draw the line for the map)
A trihybrid individual with the genotype QqRrTt is testcrossed with a ggrrtt individual. The resulting offspring are as follows: QrT QRt Qrt 11 grT 76 50 qRT 357 343 qrt 78 QRT 76 qRt Total = 1000 Determine the allele arrangement and gene order in the trihybrid parent. Give your answer using the AbC/aBc notation. Draw a chromosome map for these genes. Give your map distances to one decimal place. (Use underline or underscore (_) to draw the line for the map) a) b)
Please label the tetrad type in the table as PD (parental ditype), NPD (non parental ditype) or T (tetratype) and answer the following questions a) Are the genes linked? Please explain SPECIFICALLY how you can distinguish between linked and unlinked genes in this instance. b) If the two genes are linked, calculate the % recombination between ser and thr. Show the formula used, as well as all of your calculations. c) Draw a single map illustrating the arrangement of the two genes on the chromosome with respect to each other and to the centromere of the chromosome. Make sure to map ALL three distances
An individual with the genotype F/f • G/g • H/h is testcrossed. Among the progeny, the proportions of genotypes from this cross are shown in the following table: a) What gene is in the middle? Type you answer in this box: b) Calculate the genetic distances (in centimorgans, cM) between: genes g and f: genes f and h: genes g and h: c) What are the genotypes of the two parents? d) Calculate the interference and type your answer here:
Consider the following two nonhomologous wildtype chromosomes, where letters or numbers represent genes, the "-" represents the centromere of each chromosome, and chromosomes are shown on separate lines. ABCDE-FGHIJK 123-45678 Identify the type of rearrangement shown in each of the following (A-C) and then identify whether it is balanced or unbalanced. Assume that the individual is diploid and heterozygous for the rearrangement. A. ABCDE-FGHIJKGH 123-45678 Rearrangement: [Select] • Balanced or Unbalanced: [Select] B. ABCDGF-EHIJK 123-45678 Rearrangement: [Select] Balanced or Unbalanced: [Select]
A hypothetical brown frog with black spots (genotype BbSs) is test crossed with a green, unspotted frog (genotype bbss). These produce the following progeny: brown + spotted: 64 brown + unspotted: 134 green + spotted: 130 green + unspotted: 72 a. What is the genotype of the original dihybrid frog? Specify which alleles are on each chromosome of the brown frog with black spots (i.e. AB/ab or Ab/aB). b. How many map units separate the colour and spot genes? Show your calculations.
The following is a linkage map of chromosome 5 for three genes in tomato: (see image) The cross between the triple heterozygote (Lf J W/ lf j w) and a triple homozygous recessive produced 500 progeny. Assume that there is no interference in the Lf-W region. Give the expected number of individuals for each of the following progeny types and show complete solutions.a. with crossover in the Lf-J and J-W regionsb. with crossover in the Lf-J regionc. with crossover in the J-W regiond. without crossover in the Lf-W region
Consider the following dihybrid testcross: B/b • E/e × b/b • e/e For the progeny from this testcross, determine the relative proportions (from 0% to 100%) of each genotype if the two genes: a) are linked (dominant alleles in cis conformation) with no crossing over: Be/be: be/be: BE/be: bE/be: b) assort independently. B/b; E/e: B/b; e/e: b/b; E/e: b/b; e/e: c) are linked (dominant alleles in cis conformation) and 20 map units apart. Be/be: be/be: BE/be: bE/be:
L, R, P and D are four genes located on the same chromosome in a diploid organism. Map distances between different pairs of genes were determined and the following results obtained. Based on these data, what is the order of the genes on the chromosome? D-R: 35 CM P-D: 5 CM L-R: 10 CM D-P: 30 CM D-L 25 CM P-R: 40 CM Note that only one orientation of the order is given as an answer choice. For example: ABCD has the same order as DCBA, but only ABCD would be listed as a possible answer. So be sure to check both orientations when comparing your gene order to the possible answer choices. D-L-P-R P-D-L-R P-R-D-L L-P-R-D R-L-D-P
In the figure below, black and pink lines are used to represent nonhomologous chromosomes. Which of the figures matches the following descriptions? More than one diagram may correspond to any one statement, and a diagram may be a correct answer for more than one question. 1) Gametes produced by a reciprocal translocation heterozygote: 2) Genetically balanced gametes produced by a reciprocal translocation heterozygote:
a) Explain why when a chiasma is formed, only 50% of the meiotic products will be of recombinant type. b) Determine the sequence of the three genes (y, cl and vg) that are linked on a chromosome based on the genetic distances provided below: y- vg 43 y- cl vg – cl 5 38