Homework Answers
Questions 17 and 18 please! 17. The pathway for arginine biosynthesis in Neurospora crassa involves several...
Questions 17 and 18 please!
17. The pathway for arginine biosynthesis in Neurospora crassa involves several enzymes that produce a series of intermediates as shown. ARG-E ARG-F ARG-G ARG-H N-acetylornithine ornithine citrulline → argininosuccinate arginine You did a cross between ARG-E- ARG-H+ and ARG-E+ARG-H Neurospora strains and identified an Arg- strain from an NPD tetrad. (Assume that Neurospora forms tetrads in the same way yeast do.) Which compound(s) from the above pathway would rescue growth of this Arg- spore: 18....
1. The following ordered tetrads were obtained by crossing a strain of Neurospora requiring histadine with...
1. The following ordered tetrads were obtained by crossing a strain of Neurospora requiring histadine with a strain requiring phenylalanine. (Use the data to answer 1-4). А his h is his to his phe his phe phe $ phe his to his phe his phe poi phe his oth his t h is phe + phe op phe ething to his phe a rethe phe his file + phe ob + phe oth + olio of his $o ele +...
Can someone tell me how to solve for this? b 6 ın Neurospora, an Iris strain...
Can someone tell me how to solve for this?
b 6 ın Neurospora, an Iris strain makes big as well asgroen colored colomes (gen type bg). It is crossed to a wild-type strain, which makes small and orange-colored colonies (genotype:+ +).The following ordered tetrads of asci were found, with the numbers of each type indicated below each tetrad. VI bg bg VI b g b+ b g bg bg b+ + g Calolate the map distanes h ge be cvbien...
PLEASE SHOW WORK! 10) The following two questions use the pedigree shown below. Calculate the inbreeding...
PLEASE SHOW WORK!
10) The following two questions use the pedigree shown below. Calculate the inbreeding coefficient for the child marked with a "" in the pedigree below. Assume FA- A) 1/32 B) 1/256 C) 1/64 D) 1/128 11) Recessive alleles of the Cf gene that cause cystic fibrosis are present at a frequency of 0.03 in the general population. How much is the inbred child's risk for being afflicted by cystic fibrosis increased relative to the general population? The...
A cross was performed between a yeast strain that requires histidine and methionine for growth (His-Met-)...
A cross was performed between a yeast strain that requires histidine and methionine for growth (His-Met-) and another yeast strain, which is His+Met+. One hundred asci were dissected, and colonies were grown from the four spores in each ascus. Cells from these colonies were tested for their ability to grow on petri plates containing either minimal medium(min), min+histidine (his), min+methionine (met),or min+his+met. The number of tetrads with four spores that can grow in different type of media is shown in...
Please help (2) In Drosophila there are three genes lozenge (z), singed (s), and crossveinless (c),...
Please help
(2) In Drosophila there are three genes lozenge (z), singed (s), and crossveinless (c), with each mutant allele recessive to the wild type allele. A cross between females heterozygous for these three loci and wild-type males yielded the following progeny: Females1010 Males + 39 430 +Cz 32 s27 C+ 441 SCz 31 Using these data, construct a linkage map (4 points) of the 3 genes and calculate the coefficient of coincidence (2 points) and interference (2 points).
recombination in phages you have isolated two mutations that affect plaque morphology in phages (y and...
recombination in phages
you have isolated two mutations that affect plaque
morphology in phages (y and z). you conduct a genetic cross between
the two phage strains by coinfecting bacteria with a wild-type
strain and a strain that carries both mutations. phage chromosomes
enter the host and replicate. you collect some of the progeny
phages and plate them onto a lawn of bacterial cells. you observe
the following numbers of plaques:
1. which are examples of recombinant progeny?
Select all...
This is slides 31 and 32You perform the cross between the heterozygous pea plants described in...
This is slides 31 and 32You perform the cross between
the heterozygous pea plants described in question 3 and get the
following data. What is your null hypothesis?
tell me which of the four asci show evidence of crossing over.
It could be 0-4 of the asci shown.
Low Starch, Tall: 104
Low Starch, Short: 48
High Starch, Tall: 35
High Starch, Short: 17
This is the question 3
In this lab, we were hoping to be able to do...
please help with these 3 questions. thank you! Name: A cross between individuals with genotypes AaBb...
please help with these 3 questions. thank you!
Name: A cross between individuals with genotypes AaBb x aabh produces the following offspring. Genotype Number of offspring AaBb Aabb aaBb aabb a. Do the evidence suggest that the a and b loci are linked? Explain your answer. b. What is the map distance between a and b? (Show your work.) c. Are the A and B loci in coupling or repulsion in the heterozygous parent? 4. You perform a testcross between...
Please read the question carefully. 7:18 PM Three-point cross #3 2017-09-28 In Drosophila, the genes for...
Please read the question carefully.
7:18 PM Three-point cross #3 2017-09-28 In Drosophila, the genes for withered wings (whd), smooth abdomen (sm) and speck body (sp) are located on chromosome 2 and are separated by the following map distances: whd-(30.5) A female with withered wings and a smooth abdomen was mated to a male with a speck body The resulting phenotypically wild-type females were mated with males that had the mutant phenotype for all three traits, producing 2000 offspring. Question:...
Questions 17 and 18 please!
17. The pathway for arginine biosynthesis in Neurospora crassa involves several enzymes that produce a series of intermediates as shown. ARG-E ARG-F ARG-G ARG-H N-acetylornithine ornithine citrulline → argininosuccinate arginine You did a cross between ARG-E- ARG-H+ and ARG-E+ARG-H Neurospora strains and identified an Arg- strain from an NPD tetrad. (Assume that Neurospora forms tetrads in the same way yeast do.) Which compound(s) from the above pathway would rescue growth of this Arg- spore: 18....
1. The following ordered tetrads were obtained by crossing a strain of Neurospora requiring histadine with a strain requiring phenylalanine. (Use the data to answer 1-4). А his h is his to his phe his phe phe $ phe his to his phe his phe poi phe his oth his t h is phe + phe op phe ething to his phe a rethe phe his file + phe ob + phe oth + olio of his $o ele +...
Can someone tell me how to solve for this?
b 6 ın Neurospora, an Iris strain makes big as well asgroen colored colomes (gen type bg). It is crossed to a wild-type strain, which makes small and orange-colored colonies (genotype:+ +).The following ordered tetrads of asci were found, with the numbers of each type indicated below each tetrad. VI bg bg VI b g b+ b g bg bg b+ + g Calolate the map distanes h ge be cvbien...
PLEASE SHOW WORK!
10) The following two questions use the pedigree shown below. Calculate the inbreeding coefficient for the child marked with a "" in the pedigree below. Assume FA- A) 1/32 B) 1/256 C) 1/64 D) 1/128 11) Recessive alleles of the Cf gene that cause cystic fibrosis are present at a frequency of 0.03 in the general population. How much is the inbred child's risk for being afflicted by cystic fibrosis increased relative to the general population? The...
A cross was performed between a yeast strain that requires histidine and methionine for growth (His-Met-) and another yeast strain, which is His+Met+. One hundred asci were dissected, and colonies were grown from the four spores in each ascus. Cells from these colonies were tested for their ability to grow on petri plates containing either minimal medium(min), min+histidine (his), min+methionine (met),or min+his+met. The number of tetrads with four spores that can grow in different type of media is shown in...
Please help
(2) In Drosophila there are three genes lozenge (z), singed (s), and crossveinless (c), with each mutant allele recessive to the wild type allele. A cross between females heterozygous for these three loci and wild-type males yielded the following progeny: Females1010 Males + 39 430 +Cz 32 s27 C+ 441 SCz 31 Using these data, construct a linkage map (4 points) of the 3 genes and calculate the coefficient of coincidence (2 points) and interference (2 points).
recombination in phages
you have isolated two mutations that affect plaque
morphology in phages (y and z). you conduct a genetic cross between
the two phage strains by coinfecting bacteria with a wild-type
strain and a strain that carries both mutations. phage chromosomes
enter the host and replicate. you collect some of the progeny
phages and plate them onto a lawn of bacterial cells. you observe
the following numbers of plaques:
1. which are examples of recombinant progeny?
Select all...
This is slides 31 and 32You perform the cross between
the heterozygous pea plants described in question 3 and get the
following data. What is your null hypothesis?
tell me which of the four asci show evidence of crossing over.
It could be 0-4 of the asci shown.
Low Starch, Tall: 104
Low Starch, Short: 48
High Starch, Tall: 35
High Starch, Short: 17
This is the question 3
In this lab, we were hoping to be able to do...
please help with these 3 questions. thank you!
Name: A cross between individuals with genotypes AaBb x aabh produces the following offspring. Genotype Number of offspring AaBb Aabb aaBb aabb a. Do the evidence suggest that the a and b loci are linked? Explain your answer. b. What is the map distance between a and b? (Show your work.) c. Are the A and B loci in coupling or repulsion in the heterozygous parent? 4. You perform a testcross between...
Please read the question carefully.
7:18 PM Three-point cross #3 2017-09-28 In Drosophila, the genes for withered wings (whd), smooth abdomen (sm) and speck body (sp) are located on chromosome 2 and are separated by the following map distances: whd-(30.5) A female with withered wings and a smooth abdomen was mated to a male with a speck body The resulting phenotypically wild-type females were mated with males that had the mutant phenotype for all three traits, producing 2000 offspring. Question:...
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