Homework Answers
We know that as the recombinnation fequency between two genes increase the distance between them also increase.
Here the recombinnation frequency between P-D is 50% which is the highest and thus they are the furthest away from each other.
The gene order between these three genes are P-Q-D
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P, D, and Q are three genes found on a single chromosome in greyhounds. The recombination...
12. Use the table below to map the genes found on this chromosome of a fruit...
12. Use the table below to map the genes found on this chromosome of a fruit fly. b = black body cn = cinnabar eyes rb-reduced bristles vg = vestigial wings 3.5 6. 50 vg 199.0 16 0 bon rvg The numbers in the boxes are the recombination frequencies in between the genes (in percent). Vi nlanat inhohitad hy creatures who reproduce with the same
6. The table below gives the recombination rates of genes located on the same chromosome. Genes...
6. The table below gives the recombination rates of genes located on the same chromosome. Genes Rate of recombination a,b 50% ac 15% ad 38% a,e 8% b,c 50% b,d 13% be 50% cd 50% ce 7% d, e 45% Draw the genetic map of this chromosome.
1. 2. 13. Which statement explains why the recombination frequency between two genes is always less...
1.
2.
13.
Which statement explains why the recombination frequency between two genes is always less than 50%? Recombination cannot be more than 50% because chromosomes are only 50 map units in length. The genotype of the F, gametes will always be 50% parental gametes and 50% recombinant gametes. Genes with a recombination frequency near 50% are unlinked and have an equal likelihood of being inherited together or separately. F1 gametes always have 50% of their alleles from each parental...
Required information The recombination frequency between genes that are located on different chromosomes is 50%, a...
Required information The recombination frequency between genes that are located on different chromosomes is 50%, a hallmark of independent assortment. Genes that are located close together on the same chromosome have a recombination frequency less than 50%, which is an indication of linkage. Complete the following questions to investigate recombination frequency between genes that are far apart on the same chromosome. Two genes on the same chromosome may have no crossover (NCO), a single crossover (SCO), or a double crossover...
There are three genes located in the gene order A-B-C on a chromosome. Would you expect...
There are three genes located in the gene order A-B-C on a chromosome. Would you expect the recombination frequency to be higher between A and B or A and C?
Recombination rates between three loci in corn are shown here, R and W2 17% R and...
Recombination rates between three loci in corn are shown here, R and W2 17% R and L2 35% W2 and L2 18% What is the order of the genes on the chromosome?
43. In a region of chromosome 4 there are three genes, j, k, 1. 10 cM...
43. In a region of chromosome 4 there are three genes, j, k, 1. 10 cM 20 cM The coefficient of coincidence in this region is 0.8, and it is known that the interference is driven by j-k recombination where recombination between j and k interferes with recombination in the region between k and 1. A true -breeding k is mated with a true-breeding j 1 individual. The resultant triple heterozygote is test crossed. What classes (include phenotypes and proportions)...
There are three genes - A, B, C - on the same chromosome. You have been...
There are three genes - A, B, C - on the same chromosome. You have been studying gene A and know that the distance between A and B is 5 m.u. (map units), and the distance between A and C is 3 m.u. Based on the information you have, above, what are potential arrangements of all three genes on the chromosome? You can choose more than one. Note: answers give the genes and map units between them, in order. For...
2. Three genes and their mutations are found on the third chromosome in fruit fly Drosophila...
2. Three genes and their mutations are found on the third chromosome in fruit fly Drosophila melanogaster. Of these three genes, scarlet eyes (st) are recessive to red eyes (st"), cbony body color (eb) is recessive to gray body color (eb"), and spineless (ss), the st presence of small bristles, is recessive to normal bristles (ss). You eb SS were given a heterozygous fly (st'st eb'eb ss'ss) and were asked to eb ss design an experiment to map the distance...
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...
12. Use the table below to map the genes found on this chromosome of a fruit fly. b = black body cn = cinnabar eyes rb-reduced bristles vg = vestigial wings 3.5 6. 50 vg 199.0 16 0 bon rvg The numbers in the boxes are the recombination frequencies in between the genes (in percent). Vi nlanat inhohitad hy creatures who reproduce with the same
6. The table below gives the recombination rates of genes located on the same chromosome. Genes Rate of recombination a,b 50% ac 15% ad 38% a,e 8% b,c 50% b,d 13% be 50% cd 50% ce 7% d, e 45% Draw the genetic map of this chromosome.
1.
2.
13.
Which statement explains why the recombination frequency between two genes is always less than 50%? Recombination cannot be more than 50% because chromosomes are only 50 map units in length. The genotype of the F, gametes will always be 50% parental gametes and 50% recombinant gametes. Genes with a recombination frequency near 50% are unlinked and have an equal likelihood of being inherited together or separately. F1 gametes always have 50% of their alleles from each parental...
Required information The recombination frequency between genes that are located on different chromosomes is 50%, a hallmark of independent assortment. Genes that are located close together on the same chromosome have a recombination frequency less than 50%, which is an indication of linkage. Complete the following questions to investigate recombination frequency between genes that are far apart on the same chromosome. Two genes on the same chromosome may have no crossover (NCO), a single crossover (SCO), or a double crossover...
Recombination rates between three loci in corn are shown here, R and W2 17% R and L2 35% W2 and L2 18% What is the order of the genes on the chromosome?
43. In a region of chromosome 4 there are three genes, j, k, 1. 10 cM 20 cM The coefficient of coincidence in this region is 0.8, and it is known that the interference is driven by j-k recombination where recombination between j and k interferes with recombination in the region between k and 1. A true -breeding k is mated with a true-breeding j 1 individual. The resultant triple heterozygote is test crossed. What classes (include phenotypes and proportions)...
There are three genes - A, B, C - on the same chromosome. You have been studying gene A and know that the distance between A and B is 5 m.u. (map units), and the distance between A and C is 3 m.u. Based on the information you have, above, what are potential arrangements of all three genes on the chromosome? You can choose more than one. Note: answers give the genes and map units between them, in order. For...
2. Three genes and their mutations are found on the third chromosome in fruit fly Drosophila melanogaster. Of these three genes, scarlet eyes (st) are recessive to red eyes (st"), cbony body color (eb) is recessive to gray body color (eb"), and spineless (ss), the st presence of small bristles, is recessive to normal bristles (ss). You eb SS were given a heterozygous fly (st'st eb'eb ss'ss) and were asked to eb ss design an experiment to map the distance...
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...
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