Please explain your choice: Consider an individual with genotype A/a B/b C/c D/d, descended from one parent with genotype A/A B/B C/C D/D and another parent with genotype a/a b/b c/c d/d. Assume that genes A, B, C, and D are present in this particular order on the same chromosome. What is the minimum number of crossovers that must take place on that chromosome for the individual to generate a gamete with genotype AbCd? (hint: draw homologous chromatids and the crossovers that are taking place between them)

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

A: Need to find the recombination frequency between the two genes.

Q: Imagine that the genes for seed color and seed shape are located on the same chromosome. A cross is…

A: The genes for seed color and seed shape assort independently According to the law of independent…

Q: If 2 spot (S) is dominant to 4 spot (s), give the genotypes for the parents in the following…

A: Different versions of a gene are called alleles.  Alleles are described as either dominant or…

Q: A female of genotype a b c + + + produces 100 meiotic tetrads. Of these, 68 show no crossover…

A: A four-part structure that forms during the prophase of meiosis and consists of two homologous…

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: After analyzing data from a three-point cross she has lost her lab manual. The only thing she can…

A: * Given that *Interference is 0.68 * Three double cross over progeny * And distance between genes is…

Q: Consider the following Test Cross results & chromosome map:    Test Cross Progeny 525 A   B  C…

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

Q: Consider five unlinked genes: a, b, c, d, e are the recessive alleles, and A, B, C, D, E are the…

A: Quintuple heterozygote individuals are individuals who have inherited five different versions of a…

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: most tests of genetic linkage, the number of double crossovers is less than the number expected due…

A: Cross over events occurs during meiosis which which increases variation among the games and when…

Q: Assume that genes A and B are on the same chromosome and are 50 map units apart. An animal…

A: According to the concept of genetic linkage, when genes are far apart or on the different…

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: What would be the genotype(s) of F2 offspring that carry recombinant chromosomes? (Note: recombinant…

A:

Q: Three genes yellow (y) white (w) and cut (ct) are under investigation for possible linkage on the X…

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

Q: black, straight 17 yellow, curved 12 black, curved 337 yellow, straight 364 What is the map distance…

A:

Q: An individual that is homozygous AABBcc is crossed to an individual that is homozygous aabbCC…

A: A chromosome is a highly condensed form of DNA and It wrapped into Nucleosomes. Humans have 22…

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

A: Hi! Since you posted many questions, we will be answering the first for you. Please post the other…

Q: From parents of genotypes A/A ⋅ B/B and a/a ⋅ b/b, adihybrid was produced. In a testcross of the…

A: results provide :

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: Genetic linkage is the tendency of genes to be inherited together during meiosis. The closer the…

Q: In corn (Zea mays), the wild type trait is for kernels to be round; some kernels are shrunken (S),…

A: In Zea Mays the shape of kernels is determined by various genes. Usually two varieties are observed,…

Q: Calculate the coefficient of coincidence and interference among thegenes.

A: Coefficient of coincidence is the ratio between number of observed by number of expected double…

Q: You observe that 50% of the offspring of a two-locus mapping cross are recombinant.  You could…

A: Recombinant or recombination frequency can only be upto 50% and can not be over 50%.  The largest…

Q: For the three genes shown, identify the row that indicates the alleles that would be found in each…

A: Sexual reproduction increases genetic variation in a population. Offspring obtained from sexual…

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: In Figure 4-14, in the bottom row four colors are labeledSCO. Why are they not all the same size…

A: Crossover is the event of recombination that occurs during meiosis.

Q: A woman, seeking genetic counseling, is found to be heterozygous for a chromosomal rearrangement…

A: Detailed explanation:B.  Demonstrating chromosomal pairing during meiosis:In meiosis, homologous…

Q: The image attached shows a parental cross that is homozygous wild female x white male. F1 were…

A: Chi-square (X2) analysis helps to compare the observed data of an experiment to the expected value.…

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: Consider an example of two autosomal recessive gene a and b where a heterozygote (AaBb) is…

A: You inherit two mutant genes from your parent if you have an autosomal recessive disease. Two…

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

A: A gene is the structural and functional unit of heredity. A gene exists as two alternative forms…

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: In flies, assume black (B) is dominant and green (b) is recessive for abdomen color, and straight…

A: A genetic map displays the map distance (in cM) between any two loci as well as the position of…

Q: . a. A mouse cross A/a ⋅ B/b × a/a ⋅ b/b is made, and inthe progeny there are25% A/a ⋅ B/b, 25% a/a…

A: Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half…

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.