In Drosophila, the sepia mutation (se, chromosome 3, position 26) results in dark brown eyes, while cinnabar (cn, chromosome 2, position 57.5) results in bright orange-red eyes. True breeding, wild type females are mated with true breeding males homozygous recessive for both traits. Fill in the chart with phenotypic ratios that would be expected in the F2 generation. Use the space provided to show your work.

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: In an investigation using Drosophila, an undergraduate student successfully described 2 new genes…

A: Recombination frequency is a measure of intensity of linkage between two genes. For any two genes,…

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: In Drosophila, yellow body color is due to an X-linked gene that is recessive to the gene for gray…

A: Step 1 Since you have posted a question with multiple sub-parts, we will solve the first three…

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: 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: aternal effect gene in Drosophila, called torso, is found as a recessive allele that prevents the…

A:

Q: You have a Drosophila line that is homozygous for autosomal recessive alleles a, b, and c, linked…

A: The Recombinant Frequency tells us about the percentage of or the proportion of recombinants present…

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: In Drosophila melanogaster, black body (b) is recessive to gray body (b+), purple eyes (pr) are…

A: Introduction Drosophila Comes From The Word Drosos, Which Means "Love Of Dew." They Are Members Of…

Q: Illustrate the Parental and F1 cross

A: Trihybrid cross is between the two individuals of a species for studying inheritance of three pairs…

Q: Phenotypically wild-type F1 female Drosophila, whose mothers had light eyes (lt) and fathers had…

A: The distance between two points on a chromosome can be calculated by counting the number of…

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: a Punnett square for a cross between a homozygous red-eyed female (XR XR ) and a white-eyed male (Xr…

A: In Drosophila, white eye colour is recessive X-linked trait while red eye colour is dominant.…

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

A: answer given below Dominant Traits…

Q: It is assumed that in Drosophila the following genotypes produce phenotypes. َA- B- = Red color A-…

A: Genetics may be a discipline of biology concerned with the study of genes, genetic diversity, and…

Q: In Drosophila, Lyra (Ly) and stubble (Sb) are dominant mutations located at locus 40 and 58, on…

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

Q: The genetic map was based on crosses in Drosophila involving the three sex-linked genes a, b and c.…

A: A linkage map is a map based on the frequencies of recombination between markers during crossover of…

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 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: heterozygous female and  a recessive male. From the offspring, backcross the recessive female with…

A: introduction  In mutagenesis evaluates for latent female sterile changes on the second chromosome of…

Q: A recessive maternal effect mutant in zebrafish, called ichabod, results in embryos lacking heads…

A: Maternal effect in zebrafish is a situation where the phenotype of an organism is determined not…

Q: eye color is determined by a recessive allele, v, of an X-linked gene. The wildtype color is…

A: Eye color in Drosophila is an example of a X-linked trait: In Drosophila, the gene for eye color is…

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: drosophila, a recessive mutation (m-) of a maternal effect gene results in an abnormal  phenotype…

A: Given  Recessive mutation = m-  Normal gene = m+  homozygous female(m-m-) egg can't support…

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

A: answer is given below...

Q: three children. What is the probability that one their children will be normal (unaffected) and two…

A: Autosomal recessive mutation leads to autosomal recessive disorder. This will occur when you…

Q: If a male bird that is heterozygous for a recessive Z-linked mutation is crossed to a wild type…

A: In case of birds the males are homozygous for the sex chromosome and the genotype is ZZ. The females…

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: The miniature gene in Drosophila is located on the X-chromosome, It has two alleles; the mutant…

A: The correct answer is option (a) i.e. Xm-/Y.

Q: Wing shape (A/a) and body color (B/b) in Drosophila are controlled by two independently assorting…

A: Genetics is a branch of biology involved in the study of genes, genetic variation, and heredity in…

Q: In Drosophila melanogaster, black body (b) is recessive to gray body (b+), purple eyes (pr) are…

A: For double crossover - 4 flies  As b+ pr+ vg+ and b pr vg For single cross between b and pr - 56…

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: Three enzymes are part of a sequential pathway that produces a pigment that makes flowers red.  Each…

A: Question -Three enzymes are part of a sequential pathway that produces a pigment that makes flowers…

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: In drosophila, a recessive mutation (m-) of a maternal effect gene results in an abnormal  phenotype…

A: Alleles are the alternative forms of a gene, that can occupies the same locus of a homologous…

Q: The following list of four Drosophila mutations indicates the symbol for the mutation, the name of…

A: The dominant allele masks the expression of the recessive allele. So, the dominant allele is…

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 Drosophila, the dominant Bar mutation (B, chromosome X, position 57) results in thin bar- shaped…

A: Bar mutation allele = XB (dominant) Wild allele for bar= Xb (recessive) Signed allele = Xsn…

Q: Using the link provided. Mate two flies. a male is a wild type and a female has yellow body and…

A: There are few important points about drosophila : We know that fruit flies  have XX for females and…

Q: In Drosophila, three loci, Bar eyes (B, dominant), Scalloped wings (sd, recessive), and tan body (t,…

A: If the genes are located on the same chromosome then they do not allow crossing over between them.…

Q: Assuming two independently assorting gene loci for eye color and wing length in Drosophila…

A: A dihybrid cross is a type of cross in which two traits are involved .  As per the question , two…

Q: Mate two flies. a male is a wild type and a female has yellow body and purple eyes.

A: As you asked many questions here I'm giving answer's of 3 questions  Rest please repost…

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, 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: en colorblindness in humans is recessive and x-linked. if a woman,  heterozygous for colorblindness…

A: An Individuals receive two variant of each gene from each parent are known as alleles. These allele…

Q: Drosophila melanogaster body color is controlled by one gene while wing shape is controlled by a…

A: Mendel's law of independent assortment states that the alleles of two  different genes get sorted…

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…