In Drosophila (fruit flies), jammed wings (J), daughterless (da), curly wings (Cy), star eyes (S), and a black body (b) are determined by genes located on the same chromosome. Gene Combination Recombination Frequency J and Cy 34.9 J and da 1.7 S and Cy 4.8 Cy and b 42.4 S and da 38 b and S 47.2 Which of the following options shows the gene sequence on this chromosome? Select one: a. b J Cy da S b. S Cy J da b c. S J da Cy b d. b J da Cy S e. J S da Cy b

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: Consider two loci A and B that are 30 cM apart on chromosome 1 in the fruit fly. A paracentric…

A: There are two types of inversions. The paracentric and pericentric. In a paracentric inversion,…

Q: BLACK VESTIGIAL DIHYBRID TESTCROSS In the parental generation, you mate a pure-breeding wild-type…

A: If the genes are located on the same chromosome then they are classified as linked genes. In this…

Q: Which two traits on the gene map below for the fruit fly are most likely to cross over together?

A: The physical crossing over during meiosis of parental heterozygous homologous chromosomes or genes…

Q: parent Lotye ature ature Female parent phenotype long long long miniature long mm X X Male offspring…

A: In the chart we can see phenotypes of the parents are given. In order to find the  genotypes of…

Q: Based on the same data from the previous question:   cu  jv  se        31 +   +   se       99…

A: In Drosophila, curled wings (cu), javelin bristles (jv) and sepia eyes (se) are autosomal recessive…

Q: In a diploid plant species, an F1 with the genotype Mm Rr Ss is test crossed to a pure breeding…

A: The shuffling of genes (alleles) between chromosomes is referred to as recombination. This allows…

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

A: Suppose, se is the recessive mutated allele and it's wild type dominant form is se+ allele…

Q: Loci                                 Recombination Frequency (%) L and Q…

A: the crossing over that takes place between two genes during meiosis is referred to as recombination…

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

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

Q: Cross Cross A Cross A Cross B Cross B Phenotype F1 generation F2 generation F1…

A: The objective of the question is to determine the genotypes of the flies in different crosses and…

Q: In Drosophila, a female fly is heterozygous for three mutations, Bar eyes (B), miniature wings (m),…

A: In terms of genetics and genomics, linkage describes how closely genes or other DNA sequences are…

Q: Identify gene 1( bl, pr, vg) Identity gene 2 ( bl, pr, vg) Identify gene 3 ( bl, pr, vg)

A: The data is given for three point test cross. The three genes are involved in this case. These genes…

Q: What is the genetic distance between the eye colour locus (w) and the bristle locus (sn)? answer in…

A: Introduction: Drosophila is a genus of small flies, commonly known as fruit flies. They belong to…

Q: 4) You design Drosophila crosses to provide recombination data for gene (A), which is located…

A: The location of genes on a particular chromosome can be determined on the basis of recombination…

Q: hanges in Chromosome Structure and Number The Poinsettia type of Datura is trisomic for the…

A: Genetics is the study of how traits are passed down from generation to generation. Chromosomes are…

Q: fruit flies, you are studying three genes, whose recessive alleles can generate interesting traits.…

A: The greater number are of parental type in a three point test cross. We have to look for the…

Q: The genome of Drosophila has been studied extensively using the technique of gene mapping. In…

A: A measure of the probability that two genetic loci (positions on a chromosome) will be inherited…

Q: P. D, and Q are three genes found on a single chromosome in greyhounds. The recombination…

A: The genetic map is defined as the arrangements of genes according to the recombination frequencies…

Q: Genes X, Y, and Z are linked. Crossover gametes between genes X and Y are observed with a frequency…

A: When the fragments of the chromosomes are exchanged at two regions, the event is called a double…

Q: what is the approximate map distance between the two genes?

A: Linkage is a phenomenon which determines how genes are placed in close proximity to each other.   It…

Q: Below are the results from a 3 gene testcross between an XxYyZz plant and an xxyyzz plant: Testcross…

A: If the genes are located on the same chromosome then they are classified as linked genes. In this…

Q: Which of the following statements is true regarding the phenotypic effects of inversions? Select ALL…

A: Inversion  Inversion is a kind of mutation in the chromosomes where part of a chromosomes is cured…

Q: PURPLE VESTIGIAL DIHYBRID TESTCROSS In the parental generation, you mate a pure-breeding wild-type…

A: Recombination frequency is the number of organisms that are produced from a genetic cross. The…

Q: What gene is in the middle?

A: The genotypes found most frequently are the parental genotypes. Hence parents are: + + cn and b wx +…

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: (a) (b) (c) Parents of cross orange, crossveins orange, crossveins red, crossveins red,…

A: Answer a) Because no Red eye offsprings  may be produced from parents who have orange eyes, orange…

Q: Consider the first category of test-cross offspring shown in figure 8.2 (+b, LS). Consider also that…

A: In the test-cross in question, heterozygous female flies with the genotype +b, LS were used. In…

Q: Recombination frequencies between four genetically-linked loci in corn are shown in the following…

A: Recombination frequency is a measure of genetic linkage and is used in the creation of a genetic…

Q: Drosophila females heterozygous for 3 recessive mutations a, b, and c were crossed to males…

A: The given cross involves Drosophila females that carry three recessive mutations (a, b, and c) in…

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.