From a cross (Xyz) / (xYZ) x (xyz) / (xyz), where X,x, Y,y and Z,z represent alleles of three linked genes whose relative order is unknown, the least frequent classes of progeny are genotype (xyz) / (xyz) and (XYZ) / (xyz). What is the correct relative order of genes X, Y and Z? Answer using lowercase letters separated by a dash (-). Example: x-y-z

From a cross (Xyz) / (xYZ) x (xyz) / (xyz), where X,x, Y,y and Z,z represent alleles of three linked genes whose relative order is unknown, the least frequent classes of progeny are genotype (xyz) / (xyz) and (XYZ) / (xyz). What is the correct relative order of genes X, Y and Z? Answer using lowercase letters separated by a dash (-). Example: x-y-z

Name: From a cross (Xyz) / (xYZ) x (xyz) / (xyz), where X,x, Y,y and Z,z rep
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: From a cross (Xyz) / (xYZ) x (xyz) / (xyz), where X,x, Y,y and Z,z represent alleles of three linked genes whose relative order is unknown, the least frequent classes of progeny are genotype (xyz) / (xyz) and (XYZ) / (xyz). What is the correct relati

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...

See similar textbooks

Similar questions

Assume that there is complete dominance and complete penetrance at each locus and that epistasis does not occur. (These are the same conditions we used in class). Write your answers in numeric form (not in words). Referring to the cross DdFfGgHhRrTT x DDffGgHhRRTt: How many different gametes does the DdFfGgHhRrTT parent produce? | How many different genotypes are found among the progeny of this cross? How many different phenotypes are found among the progeny of this cross? What is the probability that the first offspring from this cross will show the dominant phenotype for all loci? (Type in as a decimal and round to 6 digits.) What is the probability that the first offspring from this cross will be heterozygous for all loci? (Type in as a decimal and round to 6 decimal digits.) What is the probability that the first offspring from this cross will be a son with genotype DDFfGghhRrTt? (Type in as a decimal and round to 6 decimal digits).
Assume that there is complete dominance and complete penetrance at each locus and that epistasis does not occur. (These are the same conditions we used in class). Write your answers in numeric form (not in words). Referring to the cross: Dd EE GG hh xMxm x Dd ee Gg HH xMY How many different gametes are produced by the individual of genotype DdEEGGhhXMXm? What is the probability that the first offspring from this cross will be genotype DDEeGgHhXMxm? our answer rounded properly to 5 decimal digits. What is the probability that the first offspring from this cross will be a son that shows the dominant phenotype for all loci? (Type in your answer rounded properly to 5 decimal digits.)
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:
The following is a linkage map of chromosome 5 for three genes in tomato:Lf (normal) vs. lf (leafy)J (jointed) vs. j (jointless)W (non-wilty) vs. w (wilty)The cross between the triple heterozygote (Lf J W/ lf j w) and a triple homozygous recessive produced500 progeny. Assume that there is no interference in the Lf-W region. Give the expected number ofindividuals 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
Assume that the trihybrid cross AABBrr x aabbRR is made in a plant species. Assume that A and B are dominant alleles, but there is no dominance effect of alleles at the R locus. a) How many different gametes are possible in the F1generation? What are the genotypes of these gametes? b) What is the probability of the parental aabbRR genotype in the F2 progeny? c) What proportion of the F2 progeny would be expected to be homozygous for all three genes?
Using the pedigree, assume that the disease is caused by an autosomal dominant allele, R. Give the genotype of the following individuals: (a) III-4 (the girl at lower right) (b) II-3 (the girl’s mother) (c) II-4 (the girl’s father)
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
type P = n! (p)* (q)"* х! (n - х)! Practice Problem: You cross a true-breeding pea plant with red flowers to a true-breeding pea plant with white flowers. All of your offspring have red flowers. Which gene is dominant? Why? What is the genotype of your offspring? You then cross the offspring to each other. What ratio do you expect? Why? You count 1000 plants and look at their flowers. Your results are as follows: 740 red 260 white Does this follow a simple Mendelian inheritance pattern? Why or why not? DADT 2 MEA SUDI ND D LUT IONS
The pedigree concerns eye phenotypes in Tribolium beetles. The solid symbols represent black eyes, the open symbols represent brown eyes, and the cross symbols (X) represent the "eyeless" phenotype, in which eyes are totally absent. Assume that these three phenotypes are the result of three alleles of a single gene, E, where E' is black, g? is brown, and is eyeless. Assign a genotype to each individual in generation II. 1 2 3 II 4 7 8 II 9 10 | 11 12 IV 13 Grifths, et al, Introduction to Genetic Analysis 12e © 2020 Macmillan Leaning Answer Bank E'? E'E What is the mode of inheritance of the eyeless phenotype? autosomal dominant X-linked recessive X-linked dominant autosomal recessive CO
Mice of the genotypes A/A ; B/B ; C/C ; D/D ; S/S anda/a ; b/b ; c/c ; d/d ; s/s are crossed. The progeny are intercrossed. What phenotypes will be produced in the F2 andin what proportions? [The allele symbols stand for thefollowing: A = agouti, a = solid (nonagouti); B = blackpigment, b = brown; C = pigmented, c = albino; D =nondilution, d = dilution (milky color); S = unspotted,s = pigmented spots on white background.]
The pedigree below shows the phenotypes of the ABO blood groups and Rhesus factors [positive (+) and negative (-)] for several members of a family. I (B+ AB- 1 2 3 4 II O- A+ В- B- AB+ A+ 1 2 4 5 6 a. What are the ABO blood group genotypes of individuals I-1 and I-2? b. Which child/ren of individual I-4 can donate blood to him? c. Which individual in the pedigree can donate blood to all the other individuals in the pedigree?
A true breeding male fly with eosin eyes (CCXw-eY) is crossed to a red-eyed female who is heterozygous for both the cream (C) and eosin eyes (Xw-e) allele. What will be the phenotypic ratio of their offspring?