In Drosophila melanogaster, ebony body color is determined by the e allele. The e+ allele produces the wild-type honey-colored body. In heterozygotes, the body is honey-colored except for a dark marking called the trident seen on the thorax. The e+ allele is thus considered to be incompletely dominant to the e allele. a. When female e+ e+ flies are crossed to male e+ e flies, what is the probability that progeny will have the trident marking? Animals with the marking mate among themselves. Of 100 progeny, how many would be expected to have a trident, how many would have ebony bodies, and how many would have honey-colored bodies?

Q: The normal color of snapdragons is red. Some pure linesshowing variations of flower color have been…

A: Cross 1 indicates that orange is dominant to yellow. Crosses 2-4 indicate that red is dominant to…

Q: The Hairless phenotype in Drosophila is caused by a recessive mutation in the H gene. Wild-type…

A: Gregor Mendel was an Austrian scientist and biologist who proposed laws of inheritance and these…

Q: In the video game Animal Crossing: New Horizons, flowering breeding is based in genetics. Each…

A: Sir Gregor Johann Mendel performed his famous experiments on pea plants and laid the foundation of…

Q: Write the genotype and phenotype that would be expected from this cross.  Write the genotype and…

A:

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 certain breeds of chicken, the appearance of the comb (a fleshy growth or crest on the top of the…

A: A trait is a characteristic feature that is unique to particular individual. Each trait is…

Q: Two pure-breeding strains of flies are mated, and the F1 are intercrossed.  The first strain has…

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous…

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 a species of bird, feather colour is determined by a single, non-autosomal gene that shows…

A: Given  Feather colour is non autosomal means it is sex based charecter. Parent phenotype  Female -…

Q: In the fruit fly Drosophila melanogaster, the trait of black body is due to a gene on chromosome 2…

A: To determine the recombination frequency and genetic map distance between the two genes, we need to…

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: Given the expected phenotype probability that you determined above, what is the minimum number of…

A: To calculate the expected number of offspring with the AB phenotype, you can use the product rule of…

Q: In Drosophila, an autosomal gene determines the shape of the hair, with B giving straight and b…

A: Drosophila melanogaster is also known as fruit flies

Q: In rats, kinky hairs and long nose whiskers are produced in response to the recessive gene (k), and…

A: Mendelian genetics and probability are two interconnected areas of study that are essential in…

Q: In bears fur colour can be either yellow or tan, and is determined by two alleles of the C gene. A…

A: A genetic trait is considered dominant if it is expressed in a person even in its single copy. While…

Q: In an autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is…

A: G gene coded for green  stigma  g gene coded for red stigma   GG = homozygous dominant = green  Gg…

Q: Z00 wnine, transparent 49 pink, transparent pink, white, transparent 46 206 pink, white 205 pink 48

A: 1). pk and wh   Phenotype Genotype Number white + wh + 47 wild +++ 200 Pink, opaque pk+op…

Q: A recessive epistasis cross gives in the F2 a 9:3:4 phenotypic ratio. What is the expected…

A: Epistasis: one gene interferes with the expression of the other gene.

Q: In labrador retrievers an allele B codes for black pigment and b codes for brown.  A second gene E…

A: Alleles are  the alternative forms of a gene that are located on the same locus of homologous…

Q: A. House mice have two coat colors; gray (agouti, or wild type) and black. When true-breeding gray…

A: There are two colour coats of mice i.e. Gray and Black G is denoted by Gray which means the genotype…

Q: In the fruit fly, Drosophila melanogaster, eye color is affected by an X-linked gene with two…

A: The objective of this question is to predict the phenotypes of the F1 and F2 generations in a cross…

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: n mice, the Ay allele of the agouti gene is recessive lethal, but it is dominant to wild type for…

A: Introduction  In genetics, dominance and recessiveness refer to the relationship between two or more…

Q: . In common wheat, Triticum aestivum, kernel color is determined by multiply duplicated genes, each…

A: The genes in the DNA code for a specific trait. Each gene has two alternative forms called alleles…

Q: A pea plant has a mendilian completely dominant gene for height lower colour phenotype. A pure…

A: Gregor Johann Mendel is considered to be the father of genetics. He postulated the theories of…

Q: In crosses between mutant mice, you find the following patterns in the genotype for the A locus…

A: Given:Genotype data for the A locus containing alleles A1, A2, A3, and A4 in mutant mice.The…

Q: Vestigial wing is a recessive autosomal mutation in the fruit fly Drosophila melanogaster. Wild-type…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

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: ngs vertically deranged males, ch from re stock cultures, result in a 1:1 ratio of normal females to…

A: X-linked is a trait where a gene is located on the X chromosome. Autosomal gene is located on the…

Q: In fruit flies (Drosophila melanogaster), the bn+ allele for normal dull red eyes is dominant to the…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: Wild-type mice have brown fur and short tails. Loss of function of a particular gene produces white…

A: The recombination frequency is calculated as the number of recombinant progeny divided by the total…

Q: In pea plants, purple flowers are dominant to white flowers.  Perform the following cross- A pea…

A: In this scenario, we are dealing with a classic Mendelian genetics problem. We have two pea plants:…

Q: A homozygnous Dominant brown mouse is crossed with a heterozynous Brown mouse(tan is ressesive…

A: A gene is a piece of DNA that contains the instructions for a specific feature or attribute.…

Q: In Drosophila, females heterozygous for the recessive alleles c, d, and e were crossed to males…

A: To determine the arrangement of the alleles in the heterozygous females, you need to consider the…

Q: In a certain plant, the dominant form of gene B codes for blue fruit, while the recessive form…

A: As per the question: F1 cross: Parents: Doubly homozygous dominant white fruited plant (EEBB) and…

Q: Fruitflies of genotype AABB are bred to fruitflies with genotype aabb. The F1 offspring are then…

A: The phenotypic ratios predicted from a cross between a dihybrid female and a homozygous recessive…

Q: Cross the two individual heterozygous for two traits found in two different chromososmes. These two…

A: The dominant trait is controlled by a dominant allele which is represented by the capital letter.…