Question

Three genes in Drosophila , X, Y and Z are linked. However, the order of the...

Three genes in Drosophila , X, Y and Z are linked. However, the order of the genes is not known. Two true breeding individuals of the genotype (genes not given in the correct order) x+y+z/x+y+z and x y z+/x y z+ were crossed and the FI trihybrid was test crossed. Double crossover genotypes were x y+z/x y z and x+yz+/ z y z. Based on this information the correct order of genes is [________________________].

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer=Y-X-Z

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
a plant has three linked genes , ABC , however the gene order is unknown ....
a plant has three linked genes , ABC , however the gene order is unknown . the following cross is performed .Abc/Abc*aBC/aBC.The F1 individuals are crosses to a tester plant. you count 100 progeny and you notice that you only find one ABC/abc plant and no abc/abc plants. you find six other classes of genotypes , all of which ahve at least 10 plants in each class. which is the order of genotype?
In corn, there are three recessive genes (a, b, and r) that are linked on chromosome...
In corn, there are three recessive genes (a, b, and r) that are linked on chromosome 3. A homozygous recessive plant is crossed with a wild-type plant. The F1 is crossed to get an F2 generation with 1370 individuals that had the following genotypes: a b r : 44 aBr: 460 A b r : 14 abR: 164 AbR: 474 aBR: 16 ABr: 158 ABR: 4 It is possible to develop a gene map, showing the order of the loci...
Three Drosophila genes on the X chromosome occupy three different loci. The mutant versions of these...
Three Drosophila genes on the X chromosome occupy three different loci. The mutant versions of these genes are y for yellow body ct for cut wing ec for echinus (spiky eyes) When a cross is between female X, and male Y flies, the P and F1 have the following genotype + + +/y ct ec When the F1 is selfed to create the F2, most wild type genes remain linked on the same chromosome, as do the mutant genes on...
Assume that genes X and Y are linked and are 20 cM apart. Also assume that...
Assume that genes X and Y are linked and are 20 cM apart. Also assume that an individual homozygous for X and y is cross to an individual homozygous for x and Y to produce an F1 individual. True/False: 40% of the gametes produced by this F1 individual should be x Y gametes. Assume that this F1 individual is crossed with an xx yy homozygote. True/False: 10% of the progeny should be heterozygous for both genes.
Genetics Question: You have three genes on a genetic map in the order of X, Y,...
Genetics Question: You have three genes on a genetic map in the order of X, Y, and Z. X to Y is 20 cM and Y to Z is 17 cM. However, you see less crossovers than you had anticipated between X and Z. Why is this and how do you find the true rate of recombination between X and Z?
Two different female Drosophila were isolated, each heterozygous for the autosomally linked genes b (black body),...
Two different female Drosophila were isolated, each heterozygous for the autosomally linked genes b (black body), d (dachs tarsus), and c (curved wings). These genes are in the order d–b–c, with b being closer to d than to c. Shown here is the genotypic arrangement for each female along with the various gametes formed by both: Female A Female B db+++c d+++bc ? Gamete formation ? (1) d b c (5) d + + (1) d b + (5) d...
In drosophila (fruit flies), eye colour is sex-linked and red eye colour is dominant to white...
In drosophila (fruit flies), eye colour is sex-linked and red eye colour is dominant to white eye colour. In a cross between a red-eyed male and a heterozygous female, what is the probability of producing white eyed female? ___________ [2 Marks] 8. Black fur in grasscutter (B) is dominant to brown fur (b.) Short tails (T) are dominant to long tails (t). What fraction of the progeny of the cross BbTt x BBtt will have black fur and long tails?...
Wing size in Drosophila results from a pair of X-linked partially dominant alleles. LM produces long...
Wing size in Drosophila results from a pair of X-linked partially dominant alleles. LM produces long wings and Lm produces miniature wings. When both alleles are present in the heterozygous condition, medium-sized wings are produced. A female fly with miniature wings is crossed with a male that has long wings. a). What are the genotypes of the female and male flies described above? What are the genotypes of the gametes that each fly makes? (4 pts) Female genotype:                                                         Female gamete(s):...
8) You just isolated a new strain of mutant mice, and preliminary mating suggest that the...
8) You just isolated a new strain of mutant mice, and preliminary mating suggest that the new mutant phenotype is not inherited in an autosomal fashion. Circumstantial evidence seems to indicate that the mutant phenotype may be following either an X-linked dominant or a mitochondrial-type inheritance pattern. Assume the mice are true breeding. a) What informative crosses would you set up to distinguish between these two possibilities? b) How would you interpret your results? 9. You are crossing two individuals...
A given chromosome contains three linked genes, B, T, and R that encode for the phenotypes:...
A given chromosome contains three linked genes, B, T, and R that encode for the phenotypes:             B = Black, b = white             T = Tall, t = short             R = Round, r = square To determine if the genes are linked a standard three-point testcross was done and the resulting offspring had the following phenotypes. Answer the based on this information.                                                                                                                                    Alleles 52        Black, tall, round                                                                                 BTR 315      Black, short, square (Highest) Btr 75        Black, tall,...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT