crossing between two heterozygous fruit flies, the ratio was shown to be 9:3:3:1. What would the parental fruit fly’s genotype have been if the resulting offspring had a 1:1:1:1 ratio instead? Multiple Choice   -LlBb X LlBb   -LlBb X Llbb   -Llbb X llBb   -LLBB x llbb   -llbb X LlBb

Q: A linkage map shows the distance between gene 'a' and gene 'b' to be 40CM, how many of each genotype…

A: Punnett Square Geneticslinkage map shows that the distance between gene a and gene b is 40…

Q: Consider the following cross examining four gene in two parental line: Parent 1: A/a; B/B; D/d; E/e…

A: Phenotype  Phenotype is the physical visible characteristic which is expressed by the the gene of an…

Q: Calculate the probability of either all-dominant or all-recessive genotypes for the alleles A, B, E,…

A: For each gene pair, the probability of getting a homozygous dominant genotype (e.g., AABB) is 1/4…

Q: figure shows the results of a dihybrid cross involving seed shape and seed color. Q. What proportion…

A: A dihybrid cross is a cross set up between two organisms which are identical hybrids for two…

Q: 11. In cockroaches, red exoskeletons (bodies) are recessive to black exoskeletons. A red male…

A: Allele and Phenotype letter Phenotype C Back exoskeleton c red exoskeleton All Genotype…

Q: An F1 of the parents AABBCC x aabbcc was testcrossed to a triply recessive organism (aabbcc). AaBbC…

A: A gene is a unit of hereditary & functional part of the nucleic acid. Alleles are the…

Q: In a species of cats, eye color can be gray, blue, green or brown. Lines that are true-breeding for…

A: Introduction :- Pleiotropy is a genetic phenomenon in which a single gene has multiple effects on an…

Q: QRt Ort 50 343 76 qRT grt QRt 357 78 QRT Total - 1000 a) Determine the allele arrangement and gene…

A: Introduction Recombination changes the proportion of individuals of different genotypes because…

Q: F2 offspring Purple, long Purple, round Red, long Red, round Total PI/PI Pl/pl pl/pl pL/PL pl/pl…

A: In sweet pea, purple flowers and long pollen grains are dominant. The genotypes of purple , long…

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: The result of a test cross of a yeast cell that is heterozygous for three genes are summarized in…

A:

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: A trihybrid individual with the genotype AaDdEe is testcrossed with an aaddee individual. The…

A: The linkage is a phenomenon in which two or more genes are present in the same chromosome. This…

Q: student crossed a female worm homozygous for the dpy-17 e164 allele with a wild-type male worm…

A: Chi square test is a statistical test which is used to check whether there is significant difference…

Q: Diagnostic ratios Probability Test crossing Forked line diagram Mendelian inheritance H E E Trait…

A: The scientific field of genetics focuses on heredity and the diversity of inherited traits. It deals…

Q: represent autosomal genes and X and X' represent X-linked alleles in an organism with XY sex…

A: This cross is a polyhybrid cross involving at least 4 genes with 8 alleles. The genes are placed on…

Q: Total 1900 1. Calculate the recombination frequency between each pair of genes

A: Recombination frequency explains the proportion of recombinant offsprings produced when a cross is…

Q: In a study of several characters, it was found that when di-hybrid crosses were made, several genes…

A: A genetic map is a chromosome map that depicts the relative positions of genes and other significant…

Q: A wild-type fruit fly (heterozygous for gray body color and red eyes) is mated with a black fruit…

A: Recombination frequency is defined as the frequency of a single chromosomal crossover between two…

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: Consider the recombination frequencies data below from a series of two-point crosses that were…

A: The linkage group has linked genes.  during the process of gamete formation these genes stay…

Q: Consider three genes on the same chromosome, Gene A, Gene B and Gene C. You perform three factor…

A: As 3 genes are located on the same chromosome then the crossing over event is very rare.

Q: Please explain your choice: Consider an individual with genotype A/a B/b C/c D/d, descended from one…

A: The parent allele are A/A B/B C/C D/D   x   a/a b/b c/c d/d                          F1    →…

Q: otype number 756 2 723 123 127 = 0.002 = 0.02 = 0.2

A: Linkage disequilibrium: Linkage disequilibrium is a sensitive measure of the population genetic…

Q: Consider a situation where F1 is backcrossed with one of its parental lineage and we obtained…

A: Introduction An allele is an alternative form of a given gene, meaning it is one of two or more…

Q: In jellyfish, let's say that long tentacles are produced by a sex-influenced allele that is dominant…

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Q: Of the eight possible phenotypic combinations in the F2 generation, which ones are the product of a…

A: Introduction: Crossing over is fundamental for the basic separation of chromosomes during meiosis.

Q: Two linked loci have a recombination frequency of 5%. A series of crosses is performed. The P…

A: Given information The recombination frequency is 5%. The P generation involves an individual that…

Q: SET 2: In corn, the following allelic pairs have been identified in chromosome 3: +/b plant color…

A: An individual expressing a dominant phenotype could have two copies of the dominant allele or one…

Q: Mapping three genes in a single cross: generic a, b, c mutant loci (a+, b+, c+ = wild type).…

A:

Q: For each genotype, indicate whether it is heterozygous (HE) or homozygous (HO) AA Bb Cc Dd Ee ff GG…

A: Heterozygous is the condition of having different or contrasting allele for the same gene which mean…

Q: Determine which progeny contain single crossovers and which contain double crossovers and indicate…

A: A cross over refers to the exchange of genetic material between two non-sister chromatids of…

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: Below is the linkage map for genes y, sh and c that are in cis arrangement. Interference is 0.4 and…

A: The cis arrangements of genes on a chromosome mean that all the dominant genes are on one chromosome…

Q: In a three point cross problem for genes Q, L, and T, you have identified the parentals and double…

A: Q.Ans:-Explanation:- Parental:- Parental types are those types of genotype where the offspring…

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: J6. Females heterozygous for three genes ABC/abc (in this order) are testcrossed to males carrying…

A: Introduction  Homozygous individuals are those who have two identical alleles (RR or rr). Individual…

Q: Continuing his experiments, in Miles Morales' genome, the Goblin found similar genes, including one…

A: In the given case, let the allele associated with invisibility be “I” and allele associated with…

Q: Specimen Trail 1 Trail 2 Trail 3 Trail 4 Trail 5 Parent 1 Genotype FF Ff Ff Ff Ff Parent 2 Genotype…

A: Genotype is the genetic features and phenotype is the physical features of an organism.

Q: If you cross a mouse with Ff genotype with another mouse with Ff genotype, what is the probability…

A: Probability --   Phenotype --The physical appearance of an organism . Genotype --The gene order of…

Q: Consider the following statement: ‘female, w+w flies have red eyes’. In this example: Group of…

A: The objective of the question is to identify the correct relationship between genotype and phenotype…

Q: Consider two genes A and B. If there are on average 1.5 crossovers taking place between A and B,…

A: A map unit is defined as the distance between two genes on a chromosome that results in an average…

Q: In one of his experiments, Mendel crossed homozygous yellow plants with homozygous green plants. The…

A: