20-21. Genes A and B are linked, 20 map units apart. 20. In a mating between an Ab/aB and ab/ab, what is the likelihood of AB/ab progeny? а. 0 b. 0.10 c. 0.20 d. 0.40 e. 0.80 Ab Ab/ab aß aB/ab AB

Q: 5. Design a mating between a female with these three traits: purple (eye color), black (body color),…

A: Linkage is a phenomenon in which genes are placed on the same chromosome in close proximity to each…

Q: Use the pedigrees below to answer the corresponding. What is the most likely mode of inheritance for…

A: Pedigree is a family chart showing the inheritance of a particular trait through several generations…

Q: Your uncle (your mother's brother) has a rare genetic disease that is inherited in an autosomal…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: In crossing two heterozygous parents, what are the chances of producing a heterozygous offspring?…

A: Trait is a characteristic features that is unique to a particular individual . It consists of :-  I…

Q: .In Pedigree #1 from the Background Material, what is the relationship of individual #12 to…

A: A pedigree depicts family relationships and identifies which members of a family have certain…

Q: 5. The following image is of ASO analysis performed at 90°C on a family with Ty Sachs (M and F are…

A: Tay-Sachs disease is a rare genetic metabolic disease that primarily affects young children. It is…

Q: green pea plant is crossed with another pea plant with unknown genotype which resulted to 100% green…

A: The Law of dominance states that the allele which can express itself in the heterozygous condition…

Q: Aabb 1 homozygous trait/ 1 heterozygous trait 1 Heterozygous Trait/ 1 homozygous Trait Ab ab Aabb aB…

A: Given: A - Dominant a - recessive B - dominant b - recessive A dihybrid cross is given between -…

Q: 2. Cross a homozygous two homed zork with a heterozygous two homed zock A. What are the genotypes of…

A: A gene exists in two alternative forms called alleles. Gene is the basic unit of heredity. When both…

Q: 12. Sam is right-handed (Rr) and nearsighted (nn). Sarah is left-handed (rr) and normal sighted…

A: Punnet square is tool which is used to predict the probabilities and variations which is comes from…

Q: The recombination rate of two linked genes is 18%. A testcross is performed between AB/ab and ab/ab…

A: D) 0. 09

Q: oman and a normal man have a normal son. This couple wants to have 4 more children. What is th…

A: Autosomal dominant inheritance: A person affected by an autosomal dominant disorder has a 50 percent…

Q: please explain why the answer is 3 thoroughly

A: Aa Bb cc × aa Bb Cc (1/2×3/4×1/2) + (1/2×3/4×1/2) =3/16+ 3/16 =6/16 =3/8

Q: The pedigree below is for a rare autosomal recessive trait with complete penetrance. I II IV 1 1 1 2…

A: Pedigree charts are family trees that show the members of a family who have been affected by…

Q: 5. What are the chances of an offspring being homozygous recessive for a trait if they have two…

A: The genome or genetic material of an organism consists of genes and their variants called alleles.…

Q: 15. A mother who is homozygous type A and a father who is homozygous type B will have a child with…

A: There are different types of blood grouping criteria, based on the presence of different markers…

Q: QUESTION 6 You are a clinical geneticist and have a patient that is phenotypically female and has…

A: Mutation refers to both the process of altering a gene or chromosome and the outcome of that…

Q: 1. In Drosophila flies, eye color is sex-linked. The allele for red eyes (X") s dominant to the…

A: According to Bartleby guidelines, we are supposed to answer first three subparts in case of multiple…

Q: 2. A maize plant heterozygous for three genes is crossed in a test cross. Are obtained the following…

A: The genes that are located on the same chromosome are called as linked genes and in this condition…

Q: 44. What fraction of the purple-flowered F2 progeny, when selfed, do you expect to produce the same…

A: The genes present in an individual do not work in isolation. They interact with each other to the…

Q: A cross is made between a heterozygote, +++/abc, and a recessive homozygote, 450 + C 10 a + c 70 +bc…

A: Q. A cross is made between a heterozygote, +++/abc, and a recessive homozygote, abc/abc. Analysis of…

Q: 1. Three genes (P, S & T) are arranged on a chromosome with distances as shown in the figure P 8.0 S…

A: Double crossovers are rare events that happen relatively rarer than single crossover as it requires…

Q: 14. Study the pedigree examining Huntington's Disease in a family. According to the pedigree below,…

A: Huntington's disease is an autosomal dominant disorder.  Therefore, Possible genotypes of affected…

Q: are known to be on separate chromosomes. In the course of a routine mating check experiment, a…

A: Progeny receives the character from parents in the form of egg and sperm. The transfer of character…

Q: 0 d. 11 О е. 19 это Ø Consider the pedigree illustrated above (i.e., Figure E in the supplemental…

A: Pedigree is used to create a family tree for a particular trait. Pedigrees are used to determine the…

Q: 4. Two genes control color in lentils. A- B- lentils are black, A- bb are cream, aa B- are brown,…

A: A-B- encodes black color.  aaB- encodes are brown in color.  aabb are white in color.

Q: Parents purple x purple red x blue white x white red x white precursor 1 precursor 2 he pathway…

A: Enzymes are responsible for a certain pathway to be carried on. In this various precursors are…

Q: The pedigree below shows the inheritance pattern of a recessive allele (z) that results in a genetic…

A: As given here,it depicts the inheritance pattern of a recessive allele (z), and that results in a…

Q: 39. The genetic distance between loci A and B is 10cM. You perform a cross between parents aaBB and…

A: A testcross is a genetic cross between an individual with a dominant phenotype but unknown genotype…

Q: 44. In pea plants, the tall phenotype is dominant to the dwarf phenotype. If a heterozygous pea…

A: Question is about inheritance.

Q: Which is an example of codominance? A. A smooth-seeded pea plant and a wrinkled-seeded pea plant…

A: Co dominance is the phenomenon in which two alleles are expressed to an equal degree with an…

Q: 11. Using the following chart, what is the map distance between A and T? Gamete Genotype Gamete Type…

A: Recombinant frequency is defined as the  frequency of recombinant offspring observed in a…

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.