Three recessive genes are linked on the third chromosome: g (gray), m (micro), and p (plum). The wild type heterozygote in the F1 is test crossed and the following F2 progeny (total of 1000) were obtained: What are the map distances between the genes? gpm 100 +++ 110 25 +pm + +g 21 144 +g m +gp ++p + + m 240 140 220

Q: An individual  heterozygous for a reciprocal translocation possesses the following chromosomes:  A B…

A: Translocation is caused by the separation of a chromosome segment and its union with a…

Q: In Drosophila the genes A B D are linked.  You cross a strain that is homozygous for d with a strain…

A:

Q: diploid individual is heterozygous for a chromosome rearrangement. The original chromosome and its…

A: Meiosis ensures the production of haploid phase in the life cycle of sexually reproducing organisms…

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: Female fruit flies from a true-breeding strain with yellow body and cut wings are mated to male…

A: The physical separation between the positions of two genes on a chromosome is referred to as the…

Q: In a testcross of a corn plant heterozygous for 3 linked, recessive genes (a, b, & d), the following…

A: Alfred H. Sturtevant was the first to discover gene mapping. In order to determine the relative…

Q: In rice, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the…

A: For a variety of reasons, using male sterility decreases the cost of hybrid seed production. It…

Q: Imagine a germ cell for an animal that is 2n=4. Gene A and B are found on chromosome one, and the…

A: Meiosis is the cell division process that is responsible for the production of four haploid (n)…

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: 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 barley, a self-fertilizing species that can be cross-fertilized, two true-breeding strains with…

A: Cytoplasmic inheritance:Inheritance of genes those present in the organelles of the cytoplasm to the…

Q: A fly that is heterozygous at 3 different, independent, autosomal loci (AaBbCc) is crossed to an…

A: The genotype is defined as the genetic constitution or composition of an individual. Thus, it is the…

Q: A phenotypically abnormal individual has a phenotypically normalfather with an inversion on one copy…

A:

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: Genes A and B are located 10 cM from each other on a chromosome. Gene C is located 25 cM from gene A…

A: As per the given values,The distance between A and B = 0.10The distance between B and C = 0.15The…

Q: Three recessive genes are linked on the third chromosome: g (gray), m (micro), and p (plum). The…

A: Given: Total progeny = 1000 Recessive: gray (g) micro (m) plum (p) Dominant denoted by + or can be…

Q: Consider Cyclic Crossover on two Parent chromosomes: Parent1 = A0846172593B and Parent2 =…

A: The child chromosome will be... chromosome no 1 is... A94B5721608A chromosome no 2 is...…

Q: Draw a Punnett square for the dihybrid cross. There are two known alleles of gene occupying a…

A: Dihybrid cross involves two genes in a cross. That's why the two traits are involved in this cross.

Q: A normal female is discovered with 45 chromosomes, one of which exhibits a Robertsonian…

A: Every living species has two types of cells, somatic cells (diploid) which are responsible for…

Q: The gene that controls the Duffy blood type is D (affected D is dominant to d) and the gene that…

A: D allele encodes duffy blood type and it is dominant over d allele. dd encodes wild type.  L allele…

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: 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: The mutant genes for vestigial wings and singed bristles are approximately 30 map units apart on…

A: Each gene has two alleles, one is a dominant allele and another is a recessive allele. If the mutant…

Q: In corn, the following genes are linked on chromosome 3:  va - variable sterile v - virescent gl -…

A: We must determine the recombination frequency between the loci based on the phenotypic ratios of the…

Q: You are given a Drosophila female that looks wild-type but is heterozygous for mutations in tan body…

A: Three-point cross: In genetics, the three-point cross is used to determine the distance between two…

Q: pid plant is heterozygous for two genes on the same chromosome, A and B. overs between the two genes…

A: There is the occurrence of possibility of two types of gametes when two genes are present on the…

Q: Explain why when a chiasma is formed, only 50% of the meiotic products will be of recombinant type.…

A: Chaismata  are the points on Homologus chromosomes where crossing over takes place between…

Q: Consider a cell with 2 pairs of homologous chromosomes where Chromosome 1 with genes VWXYZ is the…

A: The impact of Chromosome 1 (YZ genes) and Chromosome 3 (ST genes) reciprocal translocation on the…

Q: Question 5 In a rare variety of orchid pink flowers (P) are dominant over green and the presence of…

A: Dominant The allele which mask the character of another allele of same gene.

Q: You have set up a fly cross between red-eyed male flies and white-eyed female flies. Several days…

A: The objective of the question is to determine the most likely location of the gene for red eye color…

Q: The following recombinant frequencies were found between genes A, B, C, D, and E. Determine the…

A: Mapping of linked genes on the chromosomes can be done by using the percentage or frequency of…

Q: L, R, P and D are four genes located on the same chromosome in a diploid organism. Map distances…

A: Genetic mapping is a technique to determine the relative position of genes on a chromosome and their…

Q: A monosomic G. hirsutum is crossed with G. thurberi and produces offspring, some with 39 chromosomes…

A: Normal G. hirsutum is tetraploid. It has 13 tetraploid (4x) chromosomes and thereby have a total of…

Q: his area of the chromosome iIS 5%.

A: Introduction  Linkage disequilibrium (LD) is the nonrandom relationship of alleles of various loci.…

Q: The genes for waltzer (v) and jittery (ji) are 18 map units apart on chromosome 10 in mice. A…

A: To produce mice with the desired genotype of waltzer, jittery, and waltzer + jittery, we need to…

Q: A diploid (2n) trihybrid individual with the genotype AaBbDd can make eight genetically different…

A: Meiosis is the process of cell division, which takes place in higher organisms that reproduce by…

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.