In Drosophila, red eyes is the wild-type phenotype. There are several different genes that affect eye colour. One allele causes purple eyes, and a different allele causes sepia eyes. When flies with purple eyes were crossed with flies with sepia eyes, all of the F1 offspring had red eyes. The F1 offspring were allowed to mate with each other and the following data were obtained: 146 purple eyes 201 sepia eyes 444 red eyes Formulate a hypothesis that you think is consistent with the observed data. Test the goodness of fit between the data and your hypothesis.

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: 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 humans, brown eyes (B) are dominant over blue. A brown eyed man marries a blue-eyed (b) woman and…

A: Genes are the functional unit of heredity. It carries information that is transferred from one…

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: Cross C: Homozygote wild type flies (+/+) were crossed with white eye flies. for the F1 and F2…

A:

Q: In mice, black fur (W) is dominant over white fur (w), and black eyes are dominant (R) over red eyes…

A: Given: black fur (W) is dominant over white fur (w) black eyes are dominant (R) over red eyes (r) A…

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: 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: Red body in flies are dominant to yellow body, and long wings are dominant to short wings. A test…

A: This means the parent fly with red, short-wings is heterozygous for the body color and also the…

Q: In a species of fly, smooth wings (W) are dominant to wrinkled wings (w) and red bodies (R) are…

A: Introduction : The given data represents two point cross.  A two point test cross is done…

Q: Butterflies have an X-Y sex-determination system that is different from that of flies or humans.…

A: -The butterfly shown has a completely unique pattern of colors because o a special trait- it has two…

Q: Imagine that you set up a three-point mapping cross to determine the order of three X-linked genes.…

A: This is the case of three point test cross. The crossing occurs between the heterozygous parent for…

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: In Drosophila, the allele for red eyes (p*) is wild-type and the allele for purple eyes (p") is…

A: Mendel's principle of independent assortment states that a dihybrid cross with unlinked markers…

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: Two normal looking fruit flies were crossed and in their progeny, there were 202 females and 98…

A: Answer: Fruit flies have one or two X chromosomes and 2 sets of autosomal chromosomes. When there is…

Q: Drosophila have XX/XY sex determination systems just like mammals. In Drosophila, loci for both eye…

A: Most creatures and many plants show sexual dimorphism; at the end of the day, an individual can be…

Q: What would be the genotypic and phenotypic outcome if each parent was self-fertilized?

A: Genotype is refer to a gene or set of genes that leads to a single trait. Phenotype is refers to the…

Q: In Drosophila, red eyes is a wild-type phenotype.  Several different genes affect eye color.  One…

A: Drosophila with sepia eyes and purple eyes are crossed in F1 generation, producing all red wild type…

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

A: Law of Independent Assortment  ---- To know whether the two genes are inherited independently or not…

Q: Imagine that you set up a three-point mapping cross to determine the order of three X-linked genes.…

A: This is the case of three point test cross. The crossing over occurs between the heterozygous…

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 fruit flies, eye shape is an X-linked trait. Round eyes (XG) are dominant to almond-shaped eyes…

A:

Q: In Drosophila (fruit flies), jammed wings (J), daughterless (da), curly wings (Cy), star eyes (S),…

A: A gene is the basic unit of heredity and is composed of DNA(deoxyribonucleic acid). In humans, each…

Q: You are interested in three linked Drosophila genes (B, R, and D) to understand their relative…

A: Given: Three linked Drosophila genes (B, R, and D). Perform a test cross between parents with known…

Q: From a Drosophila testcross, the number of each phenotype obtained was as follows: W+         m…

A: A test cross allows the determination of the zygosity of an individual with the dominant phenotype.…

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: Honey Bees are unusual in that male bees (drones) have only one copy of each gene, while female bees…

A: The genotype is defined as a part of the genomic constitution of an organism that controls different…

Q: Which of the following is the genotype for a female with a yellow body and red eyes, who is…

A: Alleles are the different forms of a gene. The genotype of two same alleles is called homozygous…

Q: In an insect species, the genes for white eyes (w) and smooth legs (s) are linked and are located 16…

A: In genetics, genes forms the hereditary units of life. The genes contains two alternative forms…

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: You are doing a genetics experiment with the fruit fly. In the “P” generation, you cross two…

A: Answer: CROSS : It is the mating between female and male genotypes to produce progeny having the…

Q: In Drosophila, red eyes is wild-type and cinnabar eyes are mutant. Wings with crossveins are wild-…

A: In Drosophila, color of eyes are represented as red and  cinnabar in which red eyes is wild and…

Q: A male fly that is homozygous for both red eyes (A) and normal wings (B) mates with a female fly…

A: Red-eye, normal wings (AABB) = homozygous dominant Apricot eyes, pointed wings (aabb)= homozygous…

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 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: A. Select and assign symbols for the genes involved, and determine the genotypes of the parents and…

A: Genotype - Genotype is defined as the genetic constitution of the organisms. It represents the…

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: This is a multiple answers question. Which statement is true about Morgan's experiment? O Morgan…

A: The study of the eye colour of Drosophila b Morgan deduces the conclusion that the eye colour of…

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: Mating took place between males and females of a fruit fly, and individuals appeared With the…

A: Introduction: In Drosophila, sex determination is determined by a balance of female determinants on…

Q: If a two-point testcross of heterozygous females and homozygous-recessive males in Drosophila…

A: Testcross is defined as the cross between an individual (with unknown genotype) with another…

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

A: 8 different phenotypes

Q: In Drosophila, the allele for long legs (sl*) is wild-type and the allele for short legs (sh) is…

A: In Drosophila, sl+ and bl+ are wild-type alleles and code for long legs and gray body color while…

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: in a randomly mating laboratory population of Drosophila, 4% of the flies have black bodies, and 96%…

A: Since there are multiple questions, I will answer the first question.

Q: Female drosophila heterozygous for ebony (e+/e), scarlet (st+/st) and spineless (ss+/ss) were test…

A: Female drosophila are heterozygous for ebony, scarlet, and spineless were testcross and hence…

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.