Suppose a design problem was coded with 5 genes on a single chromosome, and single-point crossover was used. During the crossover between two parents, how many different children (in terms of genotype) could be produced?
Q: Suppose crossover occurs between the homologous chromosomes in the previous problem. At what stage…
A: To explain, Consider the case of crossover between homologous chromosomes with alleles D and d. When…
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A: Backcross is a type of cross in which F1 generation is crossed with recessive parent.
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Q: Two plants in a cross were each heterozygous for two gene pairs (AB /ab) whose loci are linked and…
A: Linkage is an exception to independent assortment. Distance between two genes = recombination…
Q: Given the expected phenotype probability that you determined above, what is the minimum number of…
A: To calculate the expected number of offspring with the AB phenotype, you can use the product rule of…
Q: Create a chromosome map each set of three genes from the given information. a) The crossover…
A: Chromosome map / genetic map is a representation representing the distance between the genes . In…
Q: Consider Cyclic Crossover on two Parent chromosomes: Parent1 = A0846172593B and Parent2 =…
A: The child chromosome will be... chromosome no 1 is... A94B5721608A chromosome no 2 is...…
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A: As 3 genes are located on the same chromosome then the crossing over event is very rare.
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Q: SET 2: In corn, the following allelic pairs have been identified in chromosome 3: +/b > plant color…
A: Genes forms the hereditary units of life. The genes can have alternative forms called as alleles.…
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Q: SET 2: In corn, the following allelic pairs have been identified in chromosome 3: +/b plant color…
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A: Introduction Mitosis is the division of replicated chromosomes into two new nuclei during the cell…
Q: If two loci are 10 cM apart, what proportion of the cells in prophase of the first meiotic division…
A: * Given that two loci are 10cM apart (centimorgan) *Have to calculate the proportion of cells in…
Q: n corn, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the…
A: Hi dear, here's your answer what you want. Can you please give me an upvote for this answer.
Q: can you please provide an explanation for the answer ? 11. If the double crossover event depicted…
A: Meiosis is the type of cell division that involves the division of a parent cell into four different…
Q: Based on the above data calculate the expectednumber of Double crossovers (DCOs)? Round answers to…
A: Double crossovers, also known as double crossovers events or double recombinations, refer to genetic…
Q: Suppose you have a line of mice that has cytologicallydistinct forms of chromosome 4. The tip of the…
A: When we cross a 4K/4S female with a male, the progeny obtained are 4K/4 or 4S/4 as expected. We also…
Q: Suppose a student performs a three-point test cross with mice involving mouse genes T, V and D. If…
A: Three point test cross:- it is usually used to study the sequence and position three genes present…
Q: corn, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the male…
A: Hi dear, here's your answer what you want. Can you please give me an upvote for this answer.
Q: SET 2: In corn, the following allelic pairs have been identified in chromosome 3: +/b plant color…
A: Genes form the hereditary units of life. Genes can have alternative forms called alleles. When two…
Q: Consider the following two parents that are real chromosome encoded. Then, draw and calculate the…
A: This scenario involves applying arithmetic recombination with a subtraction operation and complement…
Q: letter B: If the map distance equals the number of recombinant/total of offspring, wouldn't it be…
A: Gene distance The distance between two different gene located on the same chromosomes.
Q: Consider the genetic map below. (a) In a total of 1000 observed progeny, how many would be expected…
A: Given that, there are 1000 observed progenies. Also given that, the distance between A and B gene is…
Q: Create a chromosome map for each set of three genes from the given information. b) the crossover…
A: Answers : X and Z = 8.5% Y and Z = 2.25% Y and X = 6.25% The more lesser the percentage between the…
Q: Solve the problem below : Two white-flowered strains of the sweet pea were crossed, producing an F1…
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A: A true breeding purple flowered pea plant, PP, was crossed with a true breeding white flowered pea…
Q: Two plants in a cross were each heterozygous for two gene pairs (AB/ab) whose loci are linked and 10…
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…
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- Suppose crossover occurs between the homologous chromosomes in the previous problem. At what stage of M phase do alleles D and d segregate?In the experiment of Figure shown, Stern followed the inheritancepattern in which females carried two abnormal X chromosomesto correlate genetic recombination with the physical exchange ofchromosome pieces. Is it necessary to use a strain carrying twoabnormal chromosomes, or could he have used a strain in whichfemales carried one normal X chromosome and one abnormal Xchromosome with a deletion at one end and an extra piece of the Ychromosome at the other end?What is the cross between the progeny of F1 and the homozygous reccessive parent called? How is it usefull?
- SET 2: In corn, the following allelic pairs have been identified in chromosome 3: +/b plant color booster vs. non-booster +/lg with ligule vs. without ligule +/v green plant vs. virescent A test cross between triple recessive plants and plants heterozygous for the three pairs gave the following progeny: + v lg 305 b + lg b v lg + + lg b v + 148 58 + + + 62 + y + 152 b + + 275 Total 1000 Calculate the parental and recombinant frequencies, the map distances between genes, and the coefficient of coincidence. Illustrate the gene map or sequence.A crossover has occurred in the bivalent shown in figure.What is the outcome of this single crossover event? If a secondcrossover occurs somewhere between A and C, explain which twochromatids it would involve and where it would occur (i.e., betweenwhich two genes) to produce the chromosomes shown here:A. ABC, AbC, aBc, and abcB. Abc, Abc, aBC, and aBCC. ABc, Abc, aBC, and abCD. ABC, ABC, abc, and abcSET 2: In corn, the following allelic pairs have been identified in chromosome 3: +/b plant color booster vs. non-booster +/lg with ligule vs. without ligule +/v green plant vs. virescent A test cross between triple recessive plants and plants heterozygous for the three pairs gave the following progeny: + v lg b + lg b v lg + + lg 305 148 58 bv + + + + 62 + v + b + + 152 275 1000 Total Calculate the parental and recombinant frequencies, the map distances between genes, and the coefficient of coincidence. Illustrate the gene map or sequence.
- n corn, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the male part of the corn plants (i.e the tassel) unable to produce fertile pollen; the female parts, however, remain receptive to pollination by pollen from male fertile corn plants. However, the presence of a nuclear fertility restorer gene F restores fertility to male sterile lines sing the cardboard chips, simulate the crosses indicated below. Give the genotypes and phenotypes of the offsprings in each cross, and properly label the nucleus and the cytoplasm of each individual in the cross Legend male sterile cytoplasm Male fertile cytoplasm FF nucleus Ff nucleus ff nucleus A. Male sterile female x FF male Explain the phenotype of the offspring B. Male sterile female x Ff male Explain the phenotype of the offspringSuppose you have a line of mice that has cytologicallydistinct forms of chromosome 4. The tip of the chromosome can have a knob (called 4K) or a satellite (4S) orneither (4). Here are sketches of the three types:4K4S4You cross a 4K/4S female with a 4/4 male and find thatmost of the progeny are 4K/4 or 4S/4, as expected.However, you occasionally find some rare types asfollows (all other chromosomes are normal):a. 4K/4K/4b. 4K/4S/4c. 4KExplain the rare types that you have found. Give, asprecisely as possible, the stages at which they originate,and state whether they originate in the male parent,the female parent, or the zygote. (Give brief reasons.)When Thomas Hunt Morgan crossed his red-eyed F1 generation flies to each other, the F2 generation includedboth red- and white-eyed flies. Remarkably, all the white-eyed flies were male. What was the explanation forthis result? a. The gene involved is on the X chromosomeb. The gene involved is on the Y chromosomec. The gene involved is on an autosome, but only in malesd. Other male-specific factors influence eye color in fruit fliese. None of these is correct
- Assume that a meiotic-nondisjunction event causes trisomy 8 in a newborn. If two of the three copies of chromosome 8 are absolutely identical, at what point during meiosis did the nondisjunction event take place?In com, male sterility is controlled by maternal cytoplasmic elements. However, the presence ofa nuclear fertility restorer gene (F_) restores fertility to male sterile lines. Draw your simulated crosses male sterile female x FF male and give the genotypes and phenotypes of the offspring in each cross.DRAW IT Suppose, as in the questionat the bottom of Figure 15.9, the parental(P generation) flies were true-breedingfor gray body with vestigial wings andblack body with normal wings. Draw thechromosomes in each of the four possiblekinds of eggs from an F1 female, andlabel each chromosome as “parental”or “recombinant.”