In the above group of figures, the pink lines indicate an area of a chromosome that is inverted relative to the normal (black line) order of genes. The diploid chromosome configuration of individuals 1-4 is shown in the diagram. Match the individuals with the appropriate statements (a-d). More than one diagram may correspond to each statement, and a diagram may be a correct answer for more than one question. A single crossover involving the inverted region on one chromosome and the homologous region of the other chromosome would yield an acentric fragment. Select 1 correct answer(s) 1 4 2.

In the above group of figures, the pink lines indicate an area of a chromosome that is inverted relative to the normal (black line) order of genes. The diploid chromosome configuration of individuals 1-4 is shown in the diagram. Match the individuals with the appropriate statements (a-d). More than one diagram may correspond to each statement, and a diagram may be a correct answer for more than one question. A single crossover involving the inverted region on one chromosome and the homologous region of the other chromosome would yield an acentric fragment. Select 1 correct answer(s) 1 4 2.

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Description: In the above group of figures, the pink lines indicate an area of a chromosome that is inverted relative tothe normal (black line) order of genes. The diploid chromosome configuration of individuals 1-4 is shown inthe diagram. Match the individuals

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter15: Genomes And Genomics

Section: Chapter Questions

Problem 2QP: Hemophilia and color blindness are both recessive conditions caused by genes on the X chromosome. To...

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From a cross between individuals with the genotypes Cc Dd Ee × cc dd ee, 1000 offspring were produced. The class that was C- D- ee included 351 individuals. Are the genes c, d, and e on the same or different chromosomes? Explain.
Three autosomal genes are linked along the same chromosome.The distance between gene A and B is 7 mu, the distance betweenB and C is 11 mu, and the distance between A and C is 4 mu. Anindividual that is AA bb CC was crossed to an individual that is aaBB cc to produce heterozygous F1 offspring. The F1 offspring werethen crossed to homozygous aa bb cc individuals to produce F2offspring.Where would a crossover have to occur to produce an F2 offspringthat was heterozygous for all three genes?
In fruit flies, red eyes (pr+_) are dominant to purple eyes (prpr) and normal wings (vg+_) are dominant to vestigial wings (vgvg). The genes are located on the same chromosome. A pure breeding red-eyed fly with vestigial wings was crossed with a pure-breeding purple-eyed fly with normal wings. All of the F1 progeny had a WT phenotype. •What isthe arrangement of alleles on the F1's chromosome? •The recombination frequency between the two genes is 15%. If an F1 individual were test crossed, what percentage of the progeny would you expect to have the WT phenotype?
. An allotetraploid species has a genome composed oftwo ancestral genomes, A and B, each of which havea basic chromosome number (x) of seven. In thisspecies, the two copies of each chromosome of eachancestral genome pair only with each other duringmeiosis. Resistance to a pathogen that attacks the foliage of the plant is controlled by a dominant allele atthe F locus. The recessive alleles Faand Fbconfersensitivity to the pathogen, but the dominant resistancealleles present in the two genomes have slightly different effects. Plants with at least one FAallele areresistant to races 1 and 2 of the pathogen regardlessof the genotype in the B genome, and plants with atleast one FBallele are resistant to races 1 and 3 of thepathogen regardless of the genotype in the A genome.What proportion of the self-progeny of an FA Fa FB Fbplant will be resistant to all three races of the pathogen?
Based on the ideas proposed by Morgan, which of the followingstatements concerning linkage is not true?a. Traits determined by genes located on the same chromosome arelikely to be inherited together.b. Crossing over between homologous chromosomes can create newallele combinations.c. A crossover is more likely to occur in a region between two genesthat are close together than in a region between two genes that arefarther apart.d. The probability of crossing over depends on the distance betweenthe genes.e. Genes that tend to be transmitted together are physically located onthe same chromosome
. A geneticist mapping the genes A, B, C, D, and E makestwo 3-point testcrosses. The first cross of pure lines isA/A ⋅ B/B ⋅ C/C ⋅ D/D ⋅ E/E × a/a ⋅ b/b ⋅ C/C ⋅ d/d ⋅ E/EThe geneticist crosses the F1 with a recessive tester andclassifies the progeny by the gametic contribution ofthe F1:A ⋅ B ⋅ C ⋅ D ⋅ E 316a ⋅ b ⋅ C ⋅ d ⋅ E 314A ⋅ B ⋅ C ⋅ d ⋅ E 31a ⋅ b ⋅ C ⋅ D ⋅ E 39A ⋅ b ⋅ C ⋅ d ⋅ E 130a ⋅ B ⋅ C ⋅ D ⋅ E 140A ⋅ b ⋅ C ⋅ D ⋅ E 17a ⋅ B ⋅ C ⋅ d ⋅ E 131000The second cross of pure lines is A/A • B/B • C/C • D/D •E/E × a/a • B/B • c/c • D/D • e/e.The geneticist crosses the F1 from this cross with arecessive tester and obtainsA ⋅ B ⋅ C ⋅ D ⋅ E 243a ⋅ B ⋅ c ⋅ D ⋅ e 237A ⋅ B ⋅ c ⋅ D ⋅ e 62a ⋅ B ⋅ C ⋅ D ⋅ E 58A ⋅ B ⋅ C ⋅ D ⋅ e 155a ⋅ B ⋅ c ⋅ D ⋅ E 165a ⋅ B ⋅ C ⋅ D ⋅ e 46A ⋅ B ⋅ c ⋅ D ⋅ E 341000The geneticist also knows that genes D and E assortindependently.a. Draw a map of these genes, showing distances inmap units wherever possible.b. Is there any evidence of interference?
Two genes, designated A and B, are located 10 mu from each other.A third gene, designated C, is located 15 mu from B and 5 mufrom A. The parental generation consisting of AA bb CC and aaBB cc individuals were crossed to each other. The F1 heterozygoteswere then testcrossed to aa bb cc individuals. If we assume nodouble crossovers occur, what percentage of offspring would youexpect with the following genotypes?A. Aa Bb CcB. aa Bb CcC. Aa bb cc
A diploid species with 44 chromosomes (i.e., 22 per set) is crossedto another diploid species with 38 chromosomes (i.e., 19 per set).What topic in genetics does this question address?
The distance between two molecular markers that are linked alongthe same chromosome can be determined by analyzing the outcomesof crosses. This can be done in humans by analyzing a family’spedigree. However, the accuracy of linkage mapping in humanpedigrees is fairly limited because the number of people in mostfamilies is relatively small. As an alternative, researchers cananalyze a population of sperm, produced from a single male, andcompute linkage distance in this manner. As an example, let’ssuppose a male is heterozygous for two polymorphic STSs. STS-1exists in two sizes: 234 bp and 198 bp. STS-2 also exists in twosizes: 423 bp and 322 bp. A sample of sperm was collected fromthis man, and individual sperm were placed into 40 separate tubes.In other words, there was one sperm in each tube. Believe it or not,PCR is sensitive enough to allow analysis of DNA in a single sperm!Into each of the 40 tubes were added the primers that amplify STS-1and STS-2, and then the samples were…
A wild-type fruit fly (heterozygous for gray body color andred eyes) is mated with a black fruit fly with purple eyes. Theoffspring are wild-type, 721; black purple, 751; gray purple, 49;black red, 45. What is the recombination frequency betweenthese genes for body color and eye color? Using informationfrom problem 3, what fruit flies (genotypes and phenotypes)would you mate to determine the order of the body color, wingsize, and eye color genes on the chromosome?
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A woman who sought genetic counseling is found to be heterozygousfor a chromosomal rearrangement between the second andthird chromosomes. Her chromosomes, compared to those in anormal karyotype, are diagrammed on the next page:(a) What kind of chromosomal aberration is shown?