he genotype and phenotype for F1 and F2 generations. B- Using a Punnett Square show the cross between a heterozygous gray skunk with a homozygous white skunk. Let gray be dominant. Give the genotype and phenotype for F1.

Q: Suppose a geneticist uses a three-point testcross to map three recessive, linked hummingbird…

A: Three-point test cross: A three-point test cross is a genetic experiment used to determine the…

Q: Make sure that you show a. the breeding pedigree. b. the genotype of each animal represented. c. how…

A: Pedigree breeding is the method used to be about genetic improvement in various organisms to get the…

Q: 11. In cockroaches, red exoskeletons (bodies) are recessive to black exoskeletons. A red male…

A: Allele and Phenotype letter Phenotype C Back exoskeleton c red exoskeleton All Genotype…

Q: Based on the same data from the previous question:   cu  jv  se        31 +   +   se       99…

A: In Drosophila, curled wings (cu), javelin bristles (jv) and sepia eyes (se) are autosomal recessive…

Q: Construct a Punnett square for the original cross of the parental lines: gl1gl1/gfp2gfp2 X…

A: The given cross is gl1gl1/gfp2gfp2 x gl2gl2/gfp1gfp1Both the parents are homozygous and would…

Q: In snails, the two allelic pairs A, a and B, b are known to affect pigment deposition in the adult's…

A: Gene interaction is the process where two or more than two non-allelic genes influence the outcome…

Q: a. Determine if the pedigree below can be for a trait that is X-linked traits. Write the genotype of…

A: X-linked trait  The trait or phenotype that is influenced by X chromosome are know as x linked…

Q: Polydactly is an autosomal dominant phenotype. In this pedigree, I-2 has one copy of the dominant…

A: Variable expressivity occurs due to the similar genetic condition among different people which…

Q: In chickens, comb shape is determined by genes at two loci (R, r and P, p). A walnut comb is…

A: A rose comb is produced when at least one dominant gene is present at the first locus and two…

Q: Figure 5.1 presented abbreviated pedigrees looking at the inheritance of X-linked human conditions.…

A: Double heterozygote = Individual 1 in generation II, if the mother in generation I is homozygous…

Q: Fruit flies express both normal wing shape and vestigial wing shape. The pedigree shows the…

A: Introduction :- Vestigial organs are organs that have no obvious function and are thought to be…

Q: It is assumed that in Drosophila the following genotypes produce phenotypes. َA- B- = Red color A-…

A: Genetics may be a discipline of biology concerned with the study of genes, genetic diversity, and…

Q: The pedigree below shows a pedigree for a completely penetrant X-linked trait caused by a recessive…

A: The Pedigree shows X linked recessive trait. In this type of inheritance pattern the mutation lies…

Q: A geneticist is working on 3 traits in mice with the mode of inheritance of each thought to be…

A: Linkage is defined as the tendency of two or more genes to remain together in the same chromosome.…

Q: A type of tomato (Solanum lycopersicum) produces fruit in three possible colors: red, orange, and…

A: A type of tomato (Solanum Lycopersicum) produces fruit in three possible colors: red=RR orange =GG…

Q: You are a genetic counselor. How would you advise a couple who wants to know their chances of having…

A: X-linked recessive inheritance could be a way a hereditary characteristic or condition can be passed…

Q: In mice, gene A is epistatic to gene B. Dominant allele "A" allows for pigment to be transported to…

A: We would expect albino mouse from "aaBb" genotype . Option b is correct.

Q: In Drosophila, an allele causing vestigial wings is 12.5 mu away from another gene that causes…

A: In the parental generation, wildtype flies are crossed with flies having the recessive phenotype.…

Q: For each scenario below, choose the options that matches. Write the number in the blank next to the…

A: We are given with the various scenarios, the number for each scenario is written in Step 2.

Q: The pedigree below shows the inheritance pattern of a rare X-linked allele for one family. The…

A: Pedigree is a family chart where genetic councillor put some symbol for easy description of a…

Q: Discuss why Mendel's hybrid offspring begin to exhibit the original traits expressed by the P1…

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

Q: 3. Short-tailed pup distribution. In mice, the dominant T allele results in a short tail. Homozygous…

A: The scenario depicts Mendelian genetics applied to mice tail length inheritance. Key concepts…

Q: What was the hypothesis of the X-linked cross conducted in the lab (between white-eyed female and…

A: White eye color in drosophila is an x linked recessive mutation that causes phenotype change. These…

Q: A recessive epistasis cross gives in the F2 a 9:3:4 phenotypic ratio. What is the expected…

A: Epistasis: one gene interferes with the expression of the other gene.

Q: What is/are the phenotypes of the recombinant offspring of the F2generation?a. red eyes, long…

A: DNA recombination entails the sharing of genetic material between many or different chromosome…

Q: In Bean plants two genes are defined below with the lower case letter indicating the recessive…

A: A test cross is when the f1 hybrid is crossed with its homozygous recessive parent.

Q: Amanda Sefton (Daytripper) has normal fingers and toes and normal color vision. Her mother is normal…

A: As father of Amanda is colour blind, so Amanda may be a carrier of the disease, so her genotype for…

Q: Two different genes control the expression of kernel colour in Mexican black corn: black pigment…

A: Introduction :  Genetic traits are passed down through inheritance from parents to their offspring,…

Q: Consider the imaginary trait, bristles with split-ends, a trait hypothesized to be X-linked…

A: Introduction :- A dominant gene is carried on the X chromosome in a process known as X-linked…

Q: Gene interaction and Epistasis Dog ears may either be drooping or erect. In terms of their barking,…

A: Gregor Mendel was an Austrian scientist, mathematician, and biologist who proposed laws of…

Q: Color blindness in humans is controlled by an X-linked completely recessive allele (Xc), while…

A: Introduction :- Color blindness (colour vision deficit) is a condition in which a person's ability…

Q: Imagine that you set up a three-point mapping cross to determine the order of three X-linked genes.…

A: This is the case of three point test cross. The crossing over occurs between the heterozygous…

Q: In mice, the A allele causes agouti fur, the AY allele causes yellow fur and is dominant to the A…

A: Introduction  Certain genes are absolutely essential for the survival of an organism and the allele…

Q: What is the genetic distance between red petals and waxy texture?

A: Gene distance  Gene distance means the number of bases present between two gene. On the basis of…

Q: n mice, the Ay allele of the agouti gene is recessive lethal, but it is dominant to wild type for…

A: Introduction  In genetics, dominance and recessiveness refer to the relationship between two or more…

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: Given these parents-note, they are NOT quite the same as each other!: mom = Aa Bb Cc Dd dad = Aa Bb…

A: The product rule is used in this case. The multiply of each gene is done in this case.  The A gene…

Q: Part 1: Make a three part process drawing (like a cartoon strip) to demonstrate Mendel’s Principle…

A: An allele is a variant form of a given gene.  Phenotype is the observed physical traits of an…

Q: a) List all of the phenotypes we could observe among offspring of these Ss heterozygote parents. b)…

A: a)The possible phenotypes among offspring of Ss heterozygote parents are:- SS homozygote (spine…

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.