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2. Consider the following genetic cross: a/a B/B D/d X A/a B/b D/d What fraction of...
1. Consider the following genetic cross: a/a B/B D/d X A/a B/b D/d What fraction of...
1. Consider the following genetic cross: a/a B/B D/d X A/a B/b D/d What fraction of the progeny will have the genotype a/a B/b D/D ? SHOW YOUR WORK!!
Consider the following genetic cross: a/a B/B D/d &
Consider the following genetic cross: a/a B/B D/d X A/a B/b D/d 1. What fraction of the progeny will have the genotype a/a B/b D/D ? 2. What fraction of the progeny will have the phenotype a/a B/_ D/_ ?
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,...
please show all work for 2 & 3 2. Given the following data, what is the...
please show all work for 2 & 3
2. Given the following data, what is the recombination frequency? Select an answer below and show how you made your calculaton. Phenotype Progeny from test cross 46 44 Red, long Yellow, oval Red, oval Yellow, long Total a) 45% b) 5% c) 10% d) 90% 3. The genes dumpy (dp), clot (cl), and apterous (ap) are linked on chromosome II of Drosophila. In a series of two-point mapping crosses, the following genetic...
4. In the genetic study of the color of the hull in oat seeds, it was...
4. In the genetic study of the color of the hull in oat seeds, it was determined that genes A and B control this phenotype. Individuals with a dominant A allele display the black hull phenotype whereas individuals with the recessive a alleles and the dominant B allele have a gray hull and individuals with recessive a and b genes have white hulls. a) What genetic phenomenon best describes this inheritance pattern? b) Two individuals are crossed: Aabbx AaBb. What...
1. Low platelet count is a recessively inherited trait. Reevaluation of the genetic screen indicates that...
1. Low platelet count is a recessively inherited trait. Reevaluation of the genetic screen indicates that Nikoleta is homozygous dominant normal for a trait that causes low platelet count and her husband is homozygous recessive. If the F1 offspring has normal platelets and beta-thalassemia (15pts). a. What are the parental gametes? (2pts) b. Based on the F1 progeny phenotype given and the parental gametes, write the two possible genotypes. (2 pts) c. What is the gamete frequency if the two...
2. Consider the cross Aa Bb Cc Dd X aa Bb cc dd. All of the...
2. Consider the cross Aa Bb Cc Dd X aa Bb cc dd. All of the genes are on mes. What proportion of progeny will phenotypically resemble the second parent (i.e. the parent listed second in the cross)? Show each individual cross AS OUTLINED IN CLASS. Punnett squares are NOT allowed. Also, show the final calculation to get your answer. In other words, show all of your work. (5 marks) SEDOT a slobo Question 10 (1 point) For the peptide:...
Please help with Q2-4 2. If A and B are 10 CM apart, what proportion of...
Please help with Q2-4
2. If A and B are 10 CM apart, what proportion of the testcross progeny would be expected to have the ab phenotype? 3. If A and B are 80 CM apart, what proportion of the testcross progeny would be expected to have the ab phenotype? 4. If the parental cross was changed to AAbb by aaBB, would your answer to question 2 change?
For questions 4-5 assume cytoplasmic male sterility without genetic fertility restoration. What will be the pollen...
For questions 4-5 assume cytoplasmic male sterility without genetic fertility restoration. What will be the pollen producing phenotype(s) of the progeny from the following crosses? Female parent Male parent Phenotype of the progeny 4. male sterile X male fertile 5. male fertile X male sterile
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...
1. Consider the following genetic cross: a/a B/B D/d X A/a B/b D/d What fraction of the progeny will have the genotype a/a B/b D/D ? SHOW YOUR WORK!!
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,...
please show all work for 2 & 3
2. Given the following data, what is the recombination frequency? Select an answer below and show how you made your calculaton. Phenotype Progeny from test cross 46 44 Red, long Yellow, oval Red, oval Yellow, long Total a) 45% b) 5% c) 10% d) 90% 3. The genes dumpy (dp), clot (cl), and apterous (ap) are linked on chromosome II of Drosophila. In a series of two-point mapping crosses, the following genetic...
4. In the genetic study of the color of the hull in oat seeds, it was determined that genes A and B control this phenotype. Individuals with a dominant A allele display the black hull phenotype whereas individuals with the recessive a alleles and the dominant B allele have a gray hull and individuals with recessive a and b genes have white hulls. a) What genetic phenomenon best describes this inheritance pattern? b) Two individuals are crossed: Aabbx AaBb. What...
2. Consider the cross Aa Bb Cc Dd X aa Bb cc dd. All of the genes are on mes. What proportion of progeny will phenotypically resemble the second parent (i.e. the parent listed second in the cross)? Show each individual cross AS OUTLINED IN CLASS. Punnett squares are NOT allowed. Also, show the final calculation to get your answer. In other words, show all of your work. (5 marks) SEDOT a slobo Question 10 (1 point) For the peptide:...
Please help with Q2-4
2. If A and B are 10 CM apart, what proportion of the testcross progeny would be expected to have the ab phenotype? 3. If A and B are 80 CM apart, what proportion of the testcross progeny would be expected to have the ab phenotype? 4. If the parental cross was changed to AAbb by aaBB, would your answer to question 2 change?
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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