The following is a linkage map of chromosome 5 for three genes in tomato: Lf (normal) vs. lf (leafy) J (jointed) vs. j (jointless) W (non-wilty) vs. w (wilty) The cross between the triple heterozygote (Lf J W/ lf j w) and a triple homozygous recessive produced 500 progeny. Assume that there is no interference in the Lf-W region. Give the expected number of individuals for each of the following progeny types and show complete solutions. a. with crossover in the Lf-J and J-W regions b. with crossover in the Lf-J region c. with crossover in the J-W region d. without crossover in the Lf-W regio

Q: In Drosophila melanogaster, white eyes (w) is an X-linked recessive mutation. Normal eyes are red…

A: The normal eyes are red in Drosophila melanogaster. Normal red eyes are represented by W. Whereas,…

Q: Three autosomal genes are linked along the same chromosome.The distance between gene A and B is 7…

A: Genetic mapping is a method which considers the recombination frequency as a measure of distance…

Q: There are some members of the genus Datura that are trisomic for the chromosome set, which carries…

A: The cross between P+P+P X P+P is done in step 2

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: In the model plant Arabidopsis thaliana, the following alleles were used in a cross: T = presence of…

A: a) To find: The appearance of the F1

Q: Below is a pedigree from one family (two parents and eight children). Four of the children…

A: Pedigree chart It is a diagram that represents the occurrence of phenotypes of a particular gene in…

Q: ley, a self-fertilizing species that can be crossed fertilized, two true-breeding strains with…

A:

Q: In tomatoes, dwarf (d) is recessive to tall (D), and opaque (light-green) leaves (op) are recessive…

A: The parents given are, D opd Op×D opd op The distance distance between the genes is given as 7 m.u.…

Q: In an autotetraploid organism, the gene controlling coat color is very near the centromere of the…

A: Autotetraploid Organisms --- Autotetraploidy -- It is defined as individual or strain whose…

Q: Bar (B) is a dominant sex-linked mutant of D. melanogaster. Held-out wings and ebony body are…

A: Bar eye character (B) is a sex dominant character.

Q: Fine spines (s), smooth fruit (tu), and uniform fruit color (u) are three recessive traits in…

A: Three point test cross data is given in the image. It involves crossing of parents with three traits…

Q: The alleles his-5 and lys-1, found in yeast, result in cells that require histidine and lysine for…

A: a) In tetrad analysis, three types of tetrads are obtained:    Tetratypes= T = 363    Non-parental…

Q: In corn, the allele f ′ causes floury endosperm and the allele f ″ causes flinty endosperm. In the…

A: First, examine the crosses and also the ensuing genotypes of theendosperm:

Q: The following family pedigree shows individuals afflicted with a metabolic disease. Suppose the male…

A: square represents male and the circle represents females.

Q: The following pedigree shows the inheritance of a disease due to a completely penetrant sex-linked…

A: Sexual intercourse refers to genetic patterns that are specific to the gender in which the genetic…

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

A:

Q: diploid individual with two identical alleles for a particular gene is said to be:   a. homozygous…

A: An allele is a variant form of a gene. An organism that has two different alleles of the gene is…

Q: In tomato, the following genes are located on chromosome 2: +   tall plant…

A: Introduction Crossing Over Is Exchange Of Genetic Information. It Occurs During Meiosis When Genetic…

Q: The following is a linkage map of chromosome 5 for three genes in tomato: Lf W Lf (normal) vs. If…

A: Crossing over is the process by which non-sister chromatids of homologous chromosomes share genetic…

Q: Three autosomal genes are linked along the same chromosome.The distance between gene A and B is 7…

A: Gene mapping is used to calculate the distance between the two genes, which is also helpful in the…

Q: Radishes may be round, oval and lomg. Aside from this, they may be red, purple or white in color.…

A: The Result of various crosses are:-

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: Assume that two characters are controlled by genes we will generically label as A and B. In one…

A: Gene is defined as a segment or part of DNA that will occupy a particular place on a chromosome and…

Q: A common houseplant called a pothos sometimes have streaks of yellow on their green leaves. Assuming…

A: A gene is a unit of genetic material and alleles are the alternative form of genes present on the…

Q: Thorn apples produce either purple (P) or white (p) flowers, and their fruits are either spiny (S)…

A: A gene is a unit of hereditary present in thousands on the strands of DNA(deoxyribonucleic acid).…

Q: . In a diploid organism of 2n = 10, assume that you canlabel all the centromeres derived from its…

A: The formula that is used for the solution of this problem is 2n. Here, n stands for the different…

Q: Three fruit shapes are recognized in the summer squash (Cucurbita pepo): disk-shaped, elongated, and…

A: Genes are the hereditary units of life. The inheritance pattern was introduced by Gregor Mendel,…

Q: Fine spines (s), smooth fruit (tu), and uniform fruit color (u) are three recessive traits in…

A: Order of genes The gene orders are defined as the permutation of the arrangement of genome. The…

Q: You have a Drosophila line that is homozygous for autosomal recessive alleles a, b, and c, linked in…

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

Q: The alleles his-5 and lys-1, found in yeast, result in cells that require histidine and lysine for…

A: Genes are found on different chromosomes, occasionally far apart, but on the same chromosome, they…

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

A: Distance between the two genes indicates the genetic linkage between the two genes. Distance between…

Q: In Drosophila, ebony body colour is produced by a recessive gene a and wild-type (gray) body colour…

A: Answer: DIHYBRID CROSS : It is the cross made between two traits of an individual.

Q: In Drosophila melanogaster white (w) and miniature (m) wings are controlled by X-linked recessive…

A:

Q: Assume that the loci are all independent and that the allele represented by the upper case letter is…

A: Assuming that the loci are all independent and that the dominant allele is represented by the upper…

Q: Explain why it is possible for the proband in the following pedigree to have children of blood types…

A: A family may be a representation of our family tree. It appears how people inside a family are…

Q: I The following is a linkage map of chromosome 5 for three genes in tomato: W. Lf (normal) vs. If…

A: The genes that are located on the same chromosome are considered as linked genes. In this case the…

Q: In a diploid organism of 2n=10, assume that you can label all the centromeres derived from its…

A: Meiosis creates gametes such as egg and sperm cells. During meiosis, the genetic information is…

Q: In the plant Arabidopsis, the loci for pod length (L, long;l, short) and fruit hairs (H, hairy; h,…

A: Crossing over is an interaction between homologous chromosomes that results in a lot of genetic…

Q: This is a pedigree for a dominant trait caused by gene A in humans. Shaded symbols show individuals…

A: The trait is a dominant trait.  Thus, genotype of people having the trait - AA or Aa.  Genotype of…

Q: Make a pedigree for each of the following situations. For each individual, write the individual…

A: The cystic fibrosis transmembrane conductance regulator (CFTR) gene mutation causes this hereditary…

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: An individual that is heterozygous for an inversion has the following chromosomes (∗ is the…

A: Introduction :-  Crossing over is defined as the exchange of segments ( chromosomal segments)…

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: The three genes X, Y, and Z are linked on an autosomal chromosome in humans (X to Y is 15 cM, and Y…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: Diagram the types of gametes you would expect from a ++/yw female, given no crossovers, one…

A: A homologous chromosome is a chromosome that contains one pair of chromosomes with the same gene…

Q: In the following cross, imagine that you have a female fly that has two Xs and one Y due to a…

A: A punnett square is used to determine the genotypes and phenotypes of progenies for a couple.

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

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

Q: What would be the chromosome number of progeny resulting from the following crosses in wheat? What…

A: The complete chromosome sets present in the cells of an organism is referred to as ploidy. Humans…

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

A: Autotetraploid are the complex chromosome that form of four copies of single genome .

Q: If two genes on the same chromosome exhibit complete linkage, what is the expected F2 phenotypic…

A: ANSWER;- Here each parent produces 2 types of gametes, a+b+, and ab, giving the simple Mendelian…

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.