You are studying 3 genes X,Y and Z that are linked (and in that order; Y...
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are studying 3 genes X,Y and Z that are linked (and in that order;
Y...
Show work 1. You are studying 3 genes X, Y, and Z that are linked (in...
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1. You are studying 3 genes X, Y, and Z that are linked (in that order) in the Imperial Scorpion Pandinus imperator. The distance between X and Y is 10 cM, the distance between Y and Z is 8 cM
4. In Drosophila, the genes y, f, and v are all X-linked. y fv females are crossed to wild-type m...
please help with parts a-g
4. In Drosophila, the genes y, f, and v are all X-linked. y fv females are crossed to wild-type males and the F, females are test-crossed. The F2 males are distributed as follows: Phenotype Number 3210 72 1024 678 690 1044 60 3222 10,000 Give the genotype of the F1 females that gave rise to these progeny to show linkage phase? (2 points) A. 8. Which phenotypic classes are the parental types? (2 points) C....
By analyzing the gametes from a trihybrid fruit fly that is heterozygous for three linked genes...
By analyzing the gametes from a trihybrid fruit fly that is heterozygous for three linked genes (AaBbDd), you obtain the following data: Organize the 8 haploid genotypes into pairs that correspond to parentals, double crossovers (DCO) and each of the two types of single crossovers (SCO). Draw a map showing the order of the three genes on the chromosome. Label the map to indicate the distances (in centimorgans or map-units) between the gene in the middle and the genes on...
You are studying two linked, autosomal genes (A and B) in Drosophila. You make the following...
You are studying two linked, autosomal genes (A and B) in Drosophila. You make the following testcross between AB/ab (x) ab/abflies, and record the progeny results (see below). However, you have previously determined that the Aa/bb genotype is lethal in early embryogenesis (before hatching), and therefore these individuals never appear among the viable testcross progeny observed. Indicate the most accurate map distance between the A and B genes that can be determined from these data? Show all your work (scratch...
2. Yellow body (y), vermillion eye color (v) and miniature body (m) are recessive X-linked traits...
2. Yellow body (y), vermillion eye color (v) and miniature body (m) are recessive X-linked traits in Drosophila. The order of the genes on the chromosome is y-v-m. The following cross is performed: y v m /y+ v+ m+ (female) X y v m/Y (male) The map distances shown below were generated using 1000 male progeny. y-v - 32.0 cM; y-m - 34.3 cM; v-m - 4.0 cM Which of the following statements is FALSE? The correct answer is B...
4. You are studying three genes in corn and performed a three-point cross. The three genes...
4. You are studying three genes in corn and performed a three-point cross. The three genes are green (V) vs Viniscent (V) seedlings, blue (Pr) vs red kernels (pr) and white (B ) or brown (bm) leaf midrib color. The table below list the offspring resulting from a testcross with a female F1 heterozygote. Type of gamete (NR, SCO, DCO Phenotype Progeny Gamete from F1 heterozygote Virescent seedling red 101 kernel Red kernel 175 Red kernel, brown midrib 259 Virescent...
2. You have an organism with 3 recessive genes that you are mapping, x, y, and...
2. You have an organism with 3 recessive genes that you are mapping, x, y, and z that are on the same chromosome. You cross a female heterozygous for all three traits in a test cross and obtain the following progeny. Progeny Number y + + 506 + + + 97 y + z 130 + XZ 513 ухг 83 y x + 16 I + x + 140 + + z 15 Total 1500 a. (13 points) What is...
Please answer this carefully Xd In Drosophila, the genes y, f, and vare all X-linked. Females...
Please answer this carefully Xd
In Drosophila, the genes y, f, and vare all X-linked. Females who are homozygous for recessive alleles of all three genes (y fv/y fv) are crossed to wild-type males. The resulting trihybrid F1 females are testcrossed. Answer questions a, b and c. The F2 are distributed as follows: vfv3210 ly fyt 1024 678 690 1044 601 V + + 3222 10,000 (3)_ _and__ (4)_ a. The F2 progeny that have the parental genotypes are: _(1)__and__(2)...
43. Genes a and b are X-linked and are located 7 mu apart on the X...
43. Genes a and b are X-linked and are located 7 mu apart on the X chromosome of Drosophila. A female of genotype a+ b/a b+ is mated with a wild-type (a+b+/Y). a. What is the probability that one of her sons will be either a+b+ or a b+ in phenotype? b. What is the probability that one of her daughters will be a+b+ in phenotype? 44. Three recessive autosomal mutations in Drosophila: a versus wild-type A. b versus B,...
1. A genetic cross in which the inheritance of two traits is observed is called a...
1. A genetic cross in which the inheritance of two traits is observed is called a A) Dihybrid cross. B) Monohybrid cross C) Backeross D) Testcross 2. For single crossovers, the frequency of recombinant gametes is half the frequency of crossing over because A) A testeross between a homozygous and heterozygote produces 1/2 heterozygous and 1/2 homozygous progeny. B) The frequency of recombination is always 50%. C) Each crossover takes place between only two of the four chromatids of a...
Show work
1. You are studying 3 genes X, Y, and Z that are linked (in that order) in the Imperial Scorpion Pandinus imperator. The distance between X and Y is 10 cM, the distance between Y and Z is 8 cM
please help with parts a-g
4. In Drosophila, the genes y, f, and v are all X-linked. y fv females are crossed to wild-type males and the F, females are test-crossed. The F2 males are distributed as follows: Phenotype Number 3210 72 1024 678 690 1044 60 3222 10,000 Give the genotype of the F1 females that gave rise to these progeny to show linkage phase? (2 points) A. 8. Which phenotypic classes are the parental types? (2 points) C....
By analyzing the gametes from a trihybrid fruit fly that is heterozygous for three linked genes (AaBbDd), you obtain the following data: Organize the 8 haploid genotypes into pairs that correspond to parentals, double crossovers (DCO) and each of the two types of single crossovers (SCO). Draw a map showing the order of the three genes on the chromosome. Label the map to indicate the distances (in centimorgans or map-units) between the gene in the middle and the genes on...
You are studying two linked, autosomal genes (A and B) in Drosophila. You make the following testcross between AB/ab (x) ab/abflies, and record the progeny results (see below). However, you have previously determined that the Aa/bb genotype is lethal in early embryogenesis (before hatching), and therefore these individuals never appear among the viable testcross progeny observed. Indicate the most accurate map distance between the A and B genes that can be determined from these data? Show all your work (scratch...
4. You are studying three genes in corn and performed a three-point cross. The three genes are green (V) vs Viniscent (V) seedlings, blue (Pr) vs red kernels (pr) and white (B ) or brown (bm) leaf midrib color. The table below list the offspring resulting from a testcross with a female F1 heterozygote. Type of gamete (NR, SCO, DCO Phenotype Progeny Gamete from F1 heterozygote Virescent seedling red 101 kernel Red kernel 175 Red kernel, brown midrib 259 Virescent...
2. You have an organism with 3 recessive genes that you are mapping, x, y, and z that are on the same chromosome. You cross a female heterozygous for all three traits in a test cross and obtain the following progeny. Progeny Number y + + 506 + + + 97 y + z 130 + XZ 513 ухг 83 y x + 16 I + x + 140 + + z 15 Total 1500 a. (13 points) What is...
Please answer this carefully Xd
In Drosophila, the genes y, f, and vare all X-linked. Females who are homozygous for recessive alleles of all three genes (y fv/y fv) are crossed to wild-type males. The resulting trihybrid F1 females are testcrossed. Answer questions a, b and c. The F2 are distributed as follows: vfv3210 ly fyt 1024 678 690 1044 601 V + + 3222 10,000 (3)_ _and__ (4)_ a. The F2 progeny that have the parental genotypes are: _(1)__and__(2)...
43. Genes a and b are X-linked and are located 7 mu apart on the X chromosome of Drosophila. A female of genotype a+ b/a b+ is mated with a wild-type (a+b+/Y). a. What is the probability that one of her sons will be either a+b+ or a b+ in phenotype? b. What is the probability that one of her daughters will be a+b+ in phenotype? 44. Three recessive autosomal mutations in Drosophila: a versus wild-type A. b versus B,...
1. A genetic cross in which the inheritance of two traits is observed is called a A) Dihybrid cross. B) Monohybrid cross C) Backeross D) Testcross 2. For single crossovers, the frequency of recombinant gametes is half the frequency of crossing over because A) A testeross between a homozygous and heterozygote produces 1/2 heterozygous and 1/2 homozygous progeny. B) The frequency of recombination is always 50%. C) Each crossover takes place between only two of the four chromatids of a...
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