You test cross an F1 fish (with genotype BbCc) and obtain 1000 offsprings in F2 generation with the following results: 474 Bbcc, 480 bbCc, 20 BbCc and 26 bbcc. 1. Create and fill in a Punnet square for this cross. 2. What type of cross is it? 3. Are these loci linked?

Q: For linkage analysis, a test cross is used rather than a hybrid cross. Why is this essential? Why…

A: Test cross allows to measure the frequency of gametes indirectly which is made by an individual.…

Q: A series of three-point testcrosses is made to determine the genetic map order of seven linked…

A: An allele is a genetic variant, which is expressed as A (capitalized) when the trait is dominant and…

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

A: Polyploidy is a condition in which there would be the presence of more than two sets of chromosomes…

Q: A cross in Drosophila melanogaster involved the recessive X-linked genes for white eye (w), yellow…

A: In Drosophila melanogaster , there as three types of genes :  A ) White eye ( w )  B ) Yellow body (…

Q: The following recombination frequencies are calculated for four linked genes in the image attached:…

A: Introduction: The frequency of recombination is a genetic measure that is used to generate a genetic…

Q: In a cross between an individual who is SsTt and one who is sstt, the following offspring are…

A: A gene is the basic physical and functional unit of the heredity. Genes are made up of the DNA. Some…

Q: Two pure-breeding parents produced a heterozygous female offspring (AaBb) that was then testcrossed…

A: to determine the genetic linkage of genes, we can use a test cross which can ascertain the presence…

Q: What is the most likely combination of genotypes for a cross between two heterozygous individuals,…

A: The condition where two identical genes are present in an individual for a particular character, is…

Q: For a given cross, the expected number of double recombinants is 18 and the observed number of…

A: The measure of genetic linkage is termed as recombination frequency, which is used in the…

Q: What are monohybrid crosses? Is it possible to make a cross in which only one single character is…

A: A monohybrid cross is between two organisms with different variations but at one genetic chromosome…

Q: Genes a, b, and c are linked, and pairwise crosses gave the following distances: a-b 20 cM b-c 2 cM…

A: Note - Since you have asked multiple questions, we will solve the first question for you. If you…

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

A: Autotetraploid is a genetic condition that is characterized by the presence of four times the…

Q: In a series of two-point map crosses involving five genes locatedon chromosome II in Drosophila, the…

A: Recombination frequency measures the genetic linkage between a set of alleles/genes and is used to…

Q: In a cross between AaBbCcDDee x aaBbCcddEe, what is the probability of  obtaining the following?…

A: Product rule is used in this case. The product of probability of each gene is done to find the…

Q: You collected the following results from a test-cross you set-up using fruit flies. 52 wildtype…

A: Fruit flies ( Drosophila ) are test crossed with each other .  Results obtained are :-  A ) Wild…

Q: What genotypes would be expected for the offspring from the following matings? What are the…

A: For the alleles to be inherited in a Mendelian pattern they must follow the laws of inheritance…

Q: In a three-point testcross such as this one, why aren’t the F1 and the tester considered to be…

A: The three-point test cross is used to determine the three genes in loci of a genome organism. The…

Q: I am studying a pair of genes, A and B, that I think are both located on the same chromosome.  After…

A: The characters or traits are usually inherited from one generation to another via genetic…

Q: Which of the following statements are true regarding the F2 offspring of a mapping cross for three…

A: A three-point cross is a cross done between the 3 genes to know the order and distance between the…

Q: You cross two plants and get the following results: Recombinant progeny type A: 43 Recombinant…

A: Crossing over is the exchange of genetic material between non sister chromatid of chromosome causes…

Q: Which of the following statements best describes the events associated with the recombination of…

A: Genes are the units of heredity that are transmitted through generations. Genes contain the genetic…

Q: You have determined that the gene order for three linked genes being studied is CBA. The number of…

A: The frequency of recombination events between two genes (i.e., their degree of genetic linkage) is…

Q: Assume that you have a garden and some pea plants have solid leaves and others have striped leaves.…

A: The DNA (deoxyribonucleic acid) is the hereditary form of an organism that is passed on by the…

Q: In a cross between mice the genotypes AB/ab  ab/ab, what is the recombination frequency if the…

A: Linkage is phenomenon which evaluates how two genes are located in a class se proximity to each…

Q: a. How many generations are presented in this pedigree? b. What are the most probable genotype of…

A: Pedigree It is a diagrammatical representation of the inheritance of a trait over several…

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

A: Polyploidy is a condition where there would be the presence of more than two sets of chromosomes in…

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

A: Autotetraploid are organisms that contain four sets of chromosomes that are derived from the same…

Q: If 50% of gametes produced by a double heterozygote are recombinant, then Group of answer choices…

A: Genes are said to be linked if both the genes are present on same chromosome. On the other hand the…

Q: the gene order for three linked genes being studied is A B C. The number of recombinants resulting…

A: Recombination frequency is used to construct genetic linkage maps and it is measure of how close two…

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

A: Here we will calculate the chi-square value to determine, whether invisibility is linked to agility,…

Q: in a cross AaBb X aabb, the following progeny were obtained: AaBb=50 aabb=46 Aabb=7 aaBb=6  What is…

A: Linkage is defined as occurrence of two or more than two genes on the same chromosomes. The genes…

Q: n corn, a colored aleurone is due to the presence of an R allele; r/r is colorless. Another gene…

A: Barbara McClintock’s report that bits of DNA could jump around and integrate themselves into new…

Q: Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were…

A: Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were…

Q: Locus A has two alleles (A and a) while locus B has two alleles (B and b). The recombination…

A: Recombination is the process by which genes separate from each other during the crossover of…

Q: You breed two monster parents (green, hairless) GGhh and ggHH (white, hairy) to produce F1 offspring…

A: you have asked many questions but as per our guidelines we are allowed to answer only three.…

Q: In tomatoes, a heterozygous plant with normal fruit and purple stems is crossed with a recessive…

A:

Q: what is the typical expected ratio of a dihybrid cross between two heterozygote parentals, in the F2…

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

Q: 1. The following are the offspring produced by the cross of AaBBCc X AaBbCC, except: a.AabbCc…

A: In order to study the inheritance of three pairs of factors or alleles from three different genes,…

Q: Cross F1 red x orange-1 red x orange-2 orange-1 x orange-2 orange-2 x pink F. (cross 3) x pink all…

A: All these are monohybrid crosses involving only one character. Dominant character is always…

Q: If two gene pairs A and a and B and b are assorting independently with A dominant to a and B…

A: To find: To find the probability of the given two gene pairs

Q: A 3-point test cross produces the following numbers of offspring: The yellow cells are the…

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

Q: letter B: If the map distance equals the number of recombinant/total of offspring, wouldn't it be…

A: Gene distance The distance between two different gene located on the same chromosomes.

Q: Which genes are most likely to undergo recombination?  Which genes are least likely to recombine

A: Recombination is the exchange of genetic material between two chromosomes. Recombination occurs…

Q: An individual heterozygous for four genes, A/a • B/b •C/c • D/d, is testcrossed with a/a • b/b • c/c…

A: A cross is the mating of two people that results in the fusing of gametes and the creation of…

Q: In the case of carnation flower, what do you think a flower carnation would look like if the red and…

A: Incomplete dominance: In this type of inheritance, a third phenotype is produced and this will be a…

Q: (C) To determine the recombination frequency between these 2 genes, you perform several crosses…

A:

Q: Why are some crosses not performed in a complementation matrix?

A: Complementation is the capacity of 2 mutants in combination to reinstate the normal phenotype. The…

Q: Why is it more efficient to perform a test cross with a homozygous recessive donor than a homozygous…

A: The set of alleles for a given trait in an organism is called genotype, while the observable traits…

Q: A cross in Drosophila melanogaster involved the recessive X-linked genes for white eye (w), yellow…

A: The largest number are of parental type in three point test cross. The lowest number depicts double…

Q: What genotypes would be expected for the offspring from the following matings? What are the…

A: The genotype is the part of the genetic makeup of a cell that determines the characteristics of an…

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.