aternal effect gene in Drosophila, called torso, is found as a recessive allele that prevents the correct development of anterior- and posterior-most structures. A wild-type (homozygous) male is crossed to a female of unknown genotype. This mating produces 100% larva that are missing their anterior- and posterior-most structures and therefore die during early development. Wh

Q: In Drosophila, a heterozygous female for the X-linkedrecessive traits a, b, and c was crossed to a…

A: Genetics is a branch of biology that deals with genes, heredity, and variation. Heredity purely…

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: How many gametes of differing genotypes can a female drosophila of genotype ABC/abc produce? How…

A: There will be same gametes will be developed in males and females. The explanation is given bellow.

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: 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: Gunter Korge examined several proteins that are secreted from the salivary glands of Drosophila…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

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: n Drosophila, one of the genes controlling wing length is located on the X chromosome. A recessive…

A: 1. Male with miniature wing, red  eye.     Female with Normal wing, red eye. 2. Phenotypes on…

Q: What would be the most likely effect on development of puncturing the posterior end of a Drosophila…

A: Egg polarity are the earliest activated genes, which decide the formation of main body axis, such as…

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: In considering the formation of the A–P and D–V axes in Drosophila, we noted that, for mutations…

A: Maternal effect genes are the ones that are contributed to the egg by females.

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: A maternal effect gene in Drosophila, called torso, occurs as a functionalallele (torso+) and a…

A: Drosophila consist of acorn-head-thorax-abdomen-telson part.

Q: Several Drosophila species with unspotted wings are descended from a spotted ancestor. Would you…

A: Drosophila has a short, basic proliferation cycle. Organic product flies are little (3 mm long) yet…

Q: In Drosophila melanogaster many eye color mutations are known. One such recessive mutation is called…

A: Drosophila melanogaster is a fly species in the Drosophilidae family (taxonomic order Diptera). The…

Q: Male Drosophila expressing the autosomal recessivemutations sc (scute), ec (echinus), cv…

A: Locus is the specific location of gene in a chromosome. The inheritance of two different characters…

Q: In Drosophila fruit flies, the genes for warped wings (dwp), rumpled bristles (rmp), and pallid…

A: Three point test cross data is given in the question. The three genes are involved in this cross.

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

A: Genes are the basic units of heredity. The study of heredity is called Genetics. A gene has two…

Q: Black body (b) and purple eye (pr) are recessive autosomal mutations in Drosophila. Bridges are…

A: b - allele for black body - recessive pr - allele for purple eye - recessive B - wild type for body…

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: In Drosophila subobscura, the presence of a recessive gene called grandchildless (gs) causes the…

A: The grandchildless is an autosomal recessive condition (gs/gs). The males of the Drosophila…

Q: The fly with vestigial wings shown in the lower-left corner of Figure  is crossed with the fly with…

A: A vestigial fly has hereditarily mutated wings. They have crumpled wings which keep them from having…

Q: Suppose a geneticist uses a three-point testcross to map three linked Drosophila recessive mutations…

A: The Answer is -  f b z

Q: In Drosophila, three autosomal genes have the following map:20 m.u. 10 m.u.a b ca. Provide the data,…

A: Gene mapping is the way in which a genetic map is designed that will use recombination frequency…

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: 4

A: A complementation test is used to determine the gene function in recessive alleles. It is also…

Q: Three recessive mutations in that affect eye colour, wing shape and body colourarew, m and b. The…

A: In Drosophila , w , m , b are three mutations that impact on eye colour , shape of wing and body…

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

A: Introduction The relationship between two variants of a gene is referred to as dominant. Each parent…

Q: In Drosophila, the genes ct(cut wing margin), y (yellow body), and v (vermilion eye color) are…

A: Crossing over of chromosome during meiosis is normal process occurring so that there can be…

Q: Why is it that mutations in bicoid and nanos exhibit genetic maternal effect in Drosophila (a…

A: the bicoid gene is a maternal effect gene in Drosophila which is responsible for the development of…

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: Which Position-effect variegation in Drosophila?

A: Drosophila are known as the fruit flies that are importantly used as a model organism in the genomic…

Q: Our understanding of maternal effect genes has been greatly aided by their identification in…

A: A maternal effect is a phenomenon where the nuclear genotype of a mother is expressed in the…

Q: Consider the following variations in Drosophila melanogaster, relative to the wild-type: White eyes…

A: a) White eyes is a recessive trait and it's gene is found on chromosome number 1 So, the genotype of…

Q: Mutating the gene Transformer (tra) in Drosophila that is chromosomally XX leads to the development…

A: A mutation is a change in an organism's DNA sequence. Mutations can occur as a result of mistakes in…

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: 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: In Drosophila, the genes for withered wings (whd), smooth abdomen (sm) and speck body (sp) are…

A: To calculate the expected number of double crossover, we have to use the product rule. The product…

Q: Cinnabar eyes (cn) and reduced bristles (rd) are linked autosomal recesive characters in Drosophila…

A: As given in the question , The given cross is, cn+ cn+  rd+  rd+ (wild type female) X cncnrdrd…

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

A:

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: In the fruit fly Drosophila melanogaster, the following genes and mutations are known:Wing size:…

A: Gene: Genes are genetic material that passes from parents to progeny. The dominant allele can…

Q: A new recessive mutant allele doesn’t show pseudodominance with any of the deletions that span…

A: Pseudodominance is defined as the sudden appearance of the phenotype of a recessive gene in a…