n Drosophila, vermilion eye color is due to a recessive allele (v) located on the X chromosome. Curved wings are due to a recessive allele (cu) located on one autosome, and ebony body is due to a recessive allele (e) located on another autosome. A vermilion male is mated to a curved, ebony female, and the F1 males are phenotypically wild-type. If these males were backcrossed to curved, ebony females, what proportion of the F2 offspring will be wild-type males?

Q: One of the X chromosomes in a particular Drosophila female had a normal order of genes but carried…

A: Crossing over: It occurs during prophase I and involves the exchange of genetic material between…

Q: In Drosophila, the sepia mutation (se, chromosome 3, position 26) results in dark brown eyes, while…

A: Introduction :- D. melanogaster is an ideal model organism due to a variety of characteristics. The…

Q: In Drosophila, a fully heterozygous female with the X-linked recessive genes a, b, and c (not…

A: A fully heterozygous female with x linked gene a, b, c was mated with male a, b, c. Parental cross -…

Q: A geneticist is using a three-point testeross to map three linked Drosophila recessive mutations…

A: Gene mapping is a process through which scientists can evaluate the presence and position of genes…

Q: The production of eye-color pigment in Drosophila requires the dominant allele A. The dominant…

A: Inheritance is defined as the process by which genetic information will be passed or transmitted…

Q: In Drosophila flies, the allele b gives a black body, and the allele b+ gives brown, the wild-type…

A: In drosophila , There are three genes :- Black body b , waxy wings wx and cinnabar eyes cn .While ,…

Q: A geneticist is using a three-point testcross to map three linked Drosophila recessive mutations…

A: If the genes are located on the same chromosome then the crossing over between them will be reduced…

Q: In Drosophila, the genes for body coloration and eye size are on different chromosomes.…

A: A gene is the basic structural and functional unit of life and is composed of DNA(deoxyribonucleic…

Q: A kidney-bean shaped eye is produced by a recessive gene, k, on the third chromosome of Drosophila.…

A: "Genetic variation" is the result of the recombination of genetic material during the inheritance…

Q: Eye color in Drosophila is determined by a gene is on the X chromosome, with the red-eye allele…

A: Each gene possesses two forms of alleles. These forms include a dominant allele and a recessive…

Q: One of the X chromosomes in a particular Drosophila female had a normal order of genes but carried…

A: Inversion usually occurs in the prophase 1 in which two break can occur in the area and can thus…

Q: A female Drosophila fly is heterozygous for three recessive pigmentation mutations called pk, bk,…

A: Gene expression is a process in which the genetic instructions of genes are utilized to manage…

Q: .In Drosophila, gray body color is dominant over ebony body color, while long wings are dominant…

A: answer given below Dominant Traits…

Q: White eye color is a recessive sex-linked trait in fruit flies. If a whiteeyed Drosophila female is…

A: Genes are the hereditary unit of an organism. The DNA (deoxyribonucleic acid) forms the genes. DNA…

Q: Write the genotype(s) of the flies in each generation. Use a low dash (e.g. A_ B_) to indicate…

A: Given  Both have fruitflies are taken from different strains.  Strain A = bright red eye  Strain B =…

Q: A mutation of Drosophila has a wing condition known as beaded. When a beaded fly was crossed with a…

A: The wildtype flies have long and full wings. The mutated flies have beaded wings that can be due to…

Q: A geneticist is using a three-point testcross to map three linked Drosophila recessive mutations…

A: Testcross progeny phenotype Number Crossover Curved 281 Parental Anomalous, Buckled 279…

Q: In Drosophila, the allele for brown eyes (b) is recessive, while the red eye allele (B) is dominant.…

A: Dominant traits Red eye - B Normal body - E Recessive traits brown eye - b ebony body - e The…

Q: In Drosophila, two mutations, Stubble (Sb) and curled (cu), are linked on chromosome III. Stubble is…

A: Dominant genes are those genes whose trait or phenotype will be expressed. Recessive gene is the…

Q: Another recessive mutation in Drosophila, ebony (e), is on anautosome (chromosome 3) and causes…

A: The scalloped wing phenotype is produced due to a recessive mutation in the X chromosome. The…

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

A: Given: Miniature wings Xm - recessive Long wings X+ - dominant Male parent - long wings Female…

Q: Vermillion eye color in Drosophila is a sex-linked recessive trait. What phenotype would be found in…

A:

Q: n Drosophila, gray body color is dominant over ebony body color, while long wings are dominant over…

A: answer is given below...

Q: In flies, assume black (B) is dominant and green (b) is recessive for abdomen color, and straight…

A: A genetic map displays the map distance (in cM) between any two loci as well as the position of…

Q: One of the X chromosomes in a particular Drosophila female had a normal order of genes but carried…

A: To determine : a. Why are there no male offspring with the allele combinations y v f+, v+ v+ f, y v+…

Q: In Drosophila, gray body color is dominant to ebony body color, while long wings are dominant to…

A: Genotype is defined as the complete set of genes present in the individual and the information of…

Q: You cross a fly with straight wings with a fly with curved wings to produce the F1 generation, all…

A: In genetics, dominance refers to the phenomenon of one gene variant (allele) on one copy of a…

Q: Drosophila eye color is determined by a single gene. Supposed you collect a population of drosophila…

A: Inheritance patterns are of different type’s   Mendelian inheritance, incomplete dominance,…

Q: In Drosophila, gray body color is dominant to ebony body color, while long wings are dominant to…

A: Drosophila study experiments Gray body colour - dominant -E Ebony body colour- recessive- e long…

Q: If a Drosophila female that is homozygous for an X-linked recessive mutation is bred with a male…

A: All the male offspring who will get their X chromosome from their mother will show mutant phenotype.…

Q: A wild-type male and a wild-type female Drosophila with red eyes and full wings are crossed. Their…

A: Genetics, the study of heredity generally and of genes particularly. genetics forms one in every one…

Q: A female Drosophila with the mutant phenotype 'notched wings' was mated to a wild type male.…

A: Drosophila melanogaster is a fly species that belong to order Diptera. This is also known as fruit…

Q: In the fruit fly, Drosophila melanogaster, a spineless (no wing bristles) female fly is mated to a…

A: Formulas for three point test cross - A. Distance between two genes = (#progenies obtained by SCO…

Q: In C. elegans, lon-2 and unc-2 are recessive mutations that are 8 map units apart on the X…

A: A map unit is defined as the distance between two linked gene pairs where 1% of the products of…

Q: In Drosophila melanogaster, cinnabar eye (cn) and vestigial wing (vg) are simple recessive traits. A…

A: Cinnabar eyes = cncnv+v+ Vestigial wings = cn+cn+vv Test cross parent = cncnvv (cinnabar and…

Q: Vermillion eye color in Drosophila sp. is a sex-linked recessive trait. What  phenotype would be…

A: Considering XvXV as  Vermilion eye coloured female the crossing is given as follows. The phenotype…

Q: In the fruit fly, dumpy wings (d) and purple eyes (p) are encoded by mutant alleles that are…

A: The two genes are involved in this case. The wings and eye encoding genes are involved here. The…

Q: The testcross of a trihybrid Drosophila female with a homozygous recessive male (three-point…

A: 8 different phenotypes

Q: In Drosophila flies, the allele b gives a black body, and the allele b+ gives brown, the wild-type…

A: Genes are the hereditary units of life. The genes can be linked or may not be linked.  When two…

Q: In Drosophila, the genes for eye color, wing shape, and wing length are located on chromosome II.…

A: It is given that the Purple eyes (pr), arc bent wings (a), and vestigial wings (vg) are the mutant…

Q: What are the F1 phenotypes expected from a cross between a heterozygous red-eyed female fruit fly…

A: The genotype of female parent fruit fly is given XWXw   The genotype of male parent fruit fly is…

Q: A female from a pure-breeding strain of Drosophila with vermillion-colored eyes is crossed with a…

A: The genes are the hereditary unit of an organism which are passed on from the parental generation to…

Q: The genes for mahogany eyes and ebony body are approximately 18 map units apart on chromosome III in…

A: In Drosophila + indicates wild-type allele for any gene, m = mahogany  e = ebony.Female parents are…

Q: A kidney-bean shaped eye is produced by a recessive gene, k, on the third chromosome of Drosophila.…

A: If the genes are located on the same chromosome then they are considered as linked genes and they…

Q: n Drosophila, singed bristles (sn) and cut wings (ct) are both caused by recessive, X-linked…

A: Mapping deals with sequence, in which genes appear on a chromosome and their distance apart. Mapping…

Q: In elegans, lon-2 and unc-2 are recessive mutations that are 8 map units apart on the X chromosome.…

A: A map unit is defined as the distance between two linked gene pairs where 1% of the products of…

Q: In Drosophila melanogaster, a yellow-bodied (dark coloured) male with vestigial (underformed) wings…

A: Drosophila malenogaster is a fruit fly from family drosophilidae.

Q: The genes for the recessive traits of mahogany eyes and ebony body are approximately 30 map units…

A: Given-  Recessive traits of mahogany eyes and ebony body are 30 map units apart. Both traits are…