!!48The recombination frequency between purple color and large wings in Drosophila is 10%. What can we conclude from thisobservation?Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.aThe genes are on homologous chromosomesbThe alleles åre linkedThe genes are 10cM apartdAll of the above are true

To answer this question you should understand linkage and recombination.If two genes are located on…

Answered: The recombination frequency between…

The recombination frequency between purple color and large wings in Drosophila is 10%. What can we conclude from this observation?

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter14: Chromosomes And Human Inheritance

Section: Chapter Questions

Problem 5GP: Human females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With...

See similar textbooks

Related questions

Q: A geneticist examines an ear of corn in which most kernels are yellow, but he finds a few kernels…

A: The anthocyanin pigment produced by corn is responsible for its peculiar purple colour. This happens…

Q: In Drosophila the genes A B D are linked. You cross a strain that is homozygous for d with a strain…

Q: In a species of rat, the map unit distance between genes A, B, C and D were as follows: (in the…

A: There are 4 genes : A , B , C , D in the species of rat. Basically , Map unit or m.u or cM is the…

Q: What are the Effects of deletion heterozygosity on genetic map distances?

A: Genetic maps are made to find the distances between genes, how far two genes are located in the…

Q: The genes dumpy (dp), clot (cl), and apterous (ap) are linked on chromosome II of Drosophila. In a…

A: Recombination frequency measures the genetic linkage between a set of alleles/genes and is used to…

Q: When a female melanotic fly is crossed with a normal male, the progeny are produced: 123 normal…

A: In the question, it is given that the in the F1 generation, the melanotic progeny is only expressed…

Q: What is mitotic recombination? A heterozygous individual (Bb)with brown eyes has one eye with a…

A: Mitosis is the process of somatic cell division. The union of the egg and sperm forms the zygote…

Q: With regard to the segregation of centromeres, why is adjacent-2segregation less frequent than…

A: A specialized DNA sequence of a chromosome which links the two sister chromatids is known as a…

Q: Consider two maize plants:a. Genotype C/c m ; Ac/Ac+, where cm is an unstable allele caused by a Ds…

A: Ac and C are unlinked, that the chromosome-breakage frequencyis negligible, and that mutant c /C is…

Q: Explain why the value of the recombination frequencybetween any two genes is limited to 50%.

A: Recombination frequency is the proportion of a number of recombinant offspring resulted from a…

Q: Miniature wings (Xm) in Drosophila result from an X-linked allele that is recessive to the allele…

A: Since, no specific subparts have been asked to be answered, the first three have been answered here.…

Q: Is it possible to have a recombination frequency of 80% between two genes? Is it possible for two…

A: The information in deoxyribonucleic acid is stored in the form of a code made up of four chemical…

Q: Explain how interference affects the number of doublecrossovers?

A: Crossover is also called recombination in a genetic algorithm. It is basically a genetic operator…

Q: Why is the upper limit of recombination 50% rather than 100%?

A: The genes are the primary unit of life. The nucleotide sequence of the genes are responsible for…

Q: Describe two forms of genetic recombination. What functions do they fulfill?

A: Introduction: The adjustment of DNA arrangements by the breakage and rejoining of chromosomes or…

Q: cross between a wild-type fruit fly strain and various true-breeding mutant strains (all at a single…

A: Hi dear, here's your answer what you want.can you please give me a like for this answer. Hypomorph…

Q: The recombination frequency between genes a and b is 20%. What is the frequency of crossing over…

A: Recombination frequency is a measurement of genetic linkage. It is used in the formation of genetic…

Q: Explain why inversions and reciprocal translocations do not usually cause a phenotypic effect. In a…

A: in this, no addition or removal of genetic material is done there is a relative change in the…

Q: The genes dumpy wings (dp), clot eyes (cl), and apterous wings (ap) are linked on chromosome II of…

A: The process of establishing or identifying the position of the genes on the genome is termed genome…

Q: A double heterozygote has the repulsion configuration Ab/aB of two linked genes that have a…

A: It is given that a double heterozygote has the repulsion configuration Ab/aB of two linked genes…

Q: How to calculate recombination frequency between three genes? How does the map unit correlate with…

A: To find out the order of genes on a chromosome, a comparison of recombination frequencies may also…

Q: What is the recombination frequency?

A: Escherichia coli B is known to be the permissive strain for rII mutants since they permit the growth…

Q: Approximately how many copies of chromosome 2 are found in a polytene chromosome in Drosophila?

A: Polytene chromosomes are special type of chromosomes, which have thousands of DNA strands. They…

Q: what is Unequal crossing-over between duplications ?

A: Crossing over is the process during which the non-sister chromatids of a homologous pair of…

Q: You design Drosophila crosses to provide recombinationdata for gene a, which is located on the…

A: The drosophila is commonly called fruit fly, and it is commonly used for the study of genetics. The…

Q: Consider two maize plants:a. Genotype C/cm ; Ac/Ac+, where cm is an unstableallele caused by a Ds…

A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA…

Q: Here are the results of the testcross: Green-eyes, wild-type wings 245 Green-eyes, miniature wings…

A: 6) The number of flies with green eyes and and miniature wings are 232, these organisms are least in…

Q: Does the mechanism of recombination of unlinked genes require crossing-over? Explain your answer.

A: No, the mechanism of recombination of unlinked genes does not require crossing-over.

Q: The DNA of every individual in the pedigree shown below has been sequenced at the causative locus.…

A: Inheritance or heredity is passing on one trait from the parents to the progeny by either asexual or…

Q: What is the relationship between recombination frequency and a centiMorgan?

A: Introduction One gene/allele can affect the inheritance pattern of other gene present nearby on the…

Q: The mutations called bobbed in Drosophila result from variable reductions (deletions) in the number…

A: Mutations known as bobbed results from varied deletions in the number of amplified rRNA coding…

Q: From a cross between e+ f+ g+ and e− f − g− strains ofNeurospora, recombination between these…

A: Hi there! Since you have posted multiple questions, we are answering only first two sub-parts.…

Q: Recombination frequencies between three loci in corn are shown in the following table: Loci…

A: Recombination frequency is the frequency with which a single chromosomal crossover will take place…

Q: Can you explain genetic map with two point cross? And show me a example with the cross

A: Genetic map use to create by using information obtain through series of test cross. A cross between…

Q: In an in situ hybridization experiment, a certain clonebound to only the X chromosome in a boy with…

A: In situ hybridization is a sort of hybridization in which a labelled complementary DNA, RNA, or…

Q: In genetic recombination bycrossing over what is thedifference between parentalgametes and…

A: Genetic recombination is the process of exchange of the genetic material between the two different…

Q: The genes dumpy wings (dp), clot eyes (cl), and apterous wings(ap) are linked on chromosome II of…

A: The linkage of the genes in a chromosome can be represented in the form of genetic map. Genetic map…

Q: Two different strains of Drosophila melanogaster are mated in reciprocal crosses. When strain A…

A: Transposable elements are DNA sequences that are able to change their position in a genome sequence.…

Q: Two loci exhibit 5% recombination between them. How many map units apart are they?

A: Genetics is a branch of science concerned with the study of genes, genetic variation, and heredity…

Q: First used in Drosophila, recombination frequencies can help map relative positions of genes along…

A: Crossing over takes place due to the exchange of genetic material between two homologous chromosomes…

Q: What is homologous recombination?

A: homologous recombination- It is the process of exchange of one DNA to the another

Q: In a cross in Drosophila, a female heterozygous for the autosomallylinked genes a, b, c, d, and e…

A: Homozygous refers to the genotype of an organism with two identical alleles at a locus. Heterozygous…

Q: ecombination frequencies have been determined between four genes (A, B, C and D) as follows: A-B:…

A: Genes are hereditary units that can be found on chromosomes. With the help of genes, genetic…

Q: The genes dumpy wings (dp), clot eyes (cl), and apterous wings (ap) are linked on chromosome II of…

A: A genetic map is a type of chromosome map that shows the relative locations of genes and other…

Q: The drug ivacaftor has recently been developed totreat cystic fibrosis in children with the rare…

A: The drug known as ivacaftor was developed for the treatment of cystic fibrosis in children who have…

Q: What would you predict to be the phenotype of a Drosophila larva whose mother was homozygous for a…

A: Drosophila melanogaster is a common fruit fly. It is most common subject used in majority of genetic…

Q: a mutant screen in Drosophila, you identified a gene related to memory, as evidenced by the…

A: Recombination is a crucial term in biology. It is necessary for the creation of gene variants. The…

Q: Female Drosophila heterozygous for three recessive mutations e (ebony body), st (scarlet eyes), and…

A: Female Drosophila heterozygous for three recessive mutations e (ebony body), st (scarlet eyes), and…

Concept explainers

Genetic Recombination

Recombination is crucial to this process because it allows genes to be reassorted into diverse combinations. Genetic recombination is the process of combining genetic components from two different origins into a single unit. In prokaryotes, genetic recombination takes place by the unilateral transfer of deoxyribonucleic acid. It includes transduction, transformation, and conjugation. The genetic exchange occurring between homologous deoxyribonucleic acid sequences (DNA) from two different sources is termed general recombination. For this to happen, an identical sequence of the two recombining molecules is required. The process of genetic exchange which occurs in eukaryotes during sexual reproduction such as meiosis is an example of this type of genetic recombination.

Microbial Genetics

Genes are the functional units of heredity. They transfer characteristic information from parents to the offspring.

Question

!!
48
The recombination frequency between purple color and large wings in Drosophila is 10%. What can we conclude from this
observation?
Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.
a
The genes are on homologous chromosomes
b
The alleles åre linked
The genes are 10cM apart
d
All of the above are true

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.

Similar questions

0. In Drosophila, the gene for cinnabar eye color is onchromosome 2, and the gene for scarlet eye color is onchromosome 3. A fly homozygous for both recessivecinnabar and scarlet alleles (cn/cn; st/st) is white-eyed.a. If male flies (containing chromosomes with thenormal gene order) heterozygous for cn and st allelesare crossed to white-eyed females homozygous forthe cn and st alleles, what are the expected phenotypes and their frequencies in the progeny?b. One unusual male heterozygous for cn and st alleles,when crossed to a white-eyed female, produced onlywild-type and white-eyed progeny. Explain the likelychromosomal constitution of this male.c. When the wild-type F1 females from the cross withthe unusual male were backcrossed to normal cn/cn;st/st males, the following results were obtained:wild type 45%cinnabar 5%scarlet 5%white 45%Diagram a genetic event at metaphase I that couldproduce the rare cinnabar or scarlet flies among theprogeny of the wild-type F1 females.
Determining Gene Order 1. We want to map the distance between genes E (tall height), B (blue flower color), and G (thick stalk). Each geen has a recessive allele (e= short, b= white and g= thin). (The actual configuration of the Trihybrid will be deduces as a part of the process) A. Your testcross genotypes will be (use slash notation). Female: ______ Male:______ Based on these results, are the genes linked or not? _______
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.”
. A white-eyed female Drosophila is mated with a redeyed (wild-type) male, the reciprocal cross of the oneshown in Figure 15.4. What phenotypes and genotypesdo you predict for the offspring from this cross?
EVOLUTION CONNECTION Crossing over is thought to beevolutionarily advantageous because it continually shufflesgenetic alleles into novel combinations. Until recently, it wasthought that the genes on the Y chromosome might degenerate because they lack homologous genes on the X chromosomewith which to pair up prior to crossing over. However, when theY chromosome was sequenced, eight large regions were foundto be internally homologous to each other, and quite a few ofthe 78 genes represent duplicates. (Y chromosome researcherDavid Page has called it a “hall of mirrors.”) Explain what mightbe a benefit of these regions.
. Chromosome 3 of corn carries three loci (b for plant-color booster, v for virescent, and lg for liguleless). A testcross of triple recessives with F1 plants heterozygous forthe three genes yields progeny having the followinggenotypes: 305 + v lg, 275 b + +, 128 b + lg, 112 + v +,74 + + lg, 66 b v +, 22 + + +, and 18 b v lg. Give the genesequence on the chromosome, the map distances between genes, and the coefficient of coincidence.
3. With modern molecular methods it is now possibleto examine variants in DNA sequence from a verysmall amount of tissue like a hair follicle or even asingle sperm. (See the Fast Forward Box Mappingthe Crossovers that Generate the Chromosomes ofIndividual Human Sperm.) You can consider thesevariants to be alleles of a particular site on a chromosome (a locus; loci in plural). For example,AAAAAAA, AAACAAA, AAAGAAA, andAAATAAA at the same location (call it B) on homologous autosomes in different sperm might becalled alleles 1, 2, 3, and 4 of locus B (B1, B2, etc.).John’s genotype for two loci B and D is B1B3andD1D3. John’s father was B1B2and D1D4, while hismother was B3B3and D2D3.a. What is (are) the genotype(s) of the parental typesperm John could produce?b. What is (are) the genotype(s) of the recombinanttype sperm John could produce?c. In a sample of 100 sperm, 51 of John’s sperm werefound to be B1and D1, while the remaining 49 spermwere B3D3. Can you conclude whether the B and Dloci…
Drosophila P elements were discovered because ofa phenomenon called hybrid dysgenesis—sterilityof particular hybrid progeny. When scientists in the1970s crossed their D. melanogaster laboratorystrains to flies of the same species obtained fromnatural environments outside the lab, they observeda remarkable result: The progeny of the crosseswere sterile, but only when outside males werecrossed with lab strain females. Progeny resultingfrom crosses of outside females with lab maleswere perfectly normal.DNA analysis revealed that while the genomesof the outside flies contain P elements, the lab flygenomes have none. Apparently, P elements spreadthroughout the wild population of D. melanogasterafter the capture of the originators of present-daylaboratory strains over 100 years ago.a. The hybrid progeny are sterile because their germline cells have a high rate of mutation and chromosomal rearrangement (dysgenesis) caused by highrates of P element mobilization. Explain howP element movement…
Consider three genes on the same chromosome, Gene A, Gene B and Gene C. You perform three factor mapping cross between parentals aaBBCC and AAbbcc, and then cross the F1 triheterozygotes (aABbCc) to a pure breeding homozygous recessive strain (aabbcc). Indicate whether the F2 offspring below resulted from parental or recombinant gametes.
In Drosophila, the two mutations Stubble bristles (Sb) and curledwings (cu) are linked on chromosome III. Sb is a dominant gene that is lethal in a homozygous state, and cu is a recessive gene. Ifa female of the genotype Sb cu+ + is to be mated to detect recombinants among her offspring, whatmale genotype would you choose as her mate?
A tomato geneticist attempts to assign five recessivemutations to specific chromosomes by using trisomics.She crosses each homozygous mutant (2n) with each ofthree trisomics, in which chromosomes 1, 7, and 10 takepart. From these crosses, the geneticist selects trisomicprogeny (which are less vigorous) and backcrosses themto the appropriate homozygous recessive. The diploidprogeny from these crosses are examined. Her results, inwhich the ratios are wild type:mutant, are as follows:Which of the mutations can the geneticist assign towhich chromosomes? (Explain your answer fully.)
Mitotic recombination can occasionally produce a twin spot.Let’s suppose an animal species is heterozygous for two genesthat govern fur color and length: one gene affects pigmentation,with dark pigmentation (A) dominant to albino (a); the other geneaffects hair length, with long hair (L) dominant to short hair (l).The two genes are linked on the same chromosome. Let’s assume ananimal of this species is AaLl; A is linked to l, and a is linked to L.Draw the chromosomes labeled with these alleles, and explainhow mitotic recombination could produce a twin spot with onespot having albino pigmentation and long fur and the other havingdark pigmentation and short fur.