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Q: In female mamals, X chromosome inactivation often leads to phenotypic mosaicism. Assume that black…

A: Coat color in animals is controlled by either autosomal or sex-linked genes. Coat color is a…

Q: A geneticist crosses two yellow mice with straight hair and obtains the  following progeny:  1/2…

A: Genetic is the branch of science that deals with genetic material like genome, genes, DNA, and…

Q: Coat color in mice is influenced by two genes, one for color (A) and one for the amount of pigment…

A: Answer

Q: Daniel McDonald and Nancy Peer determined that eyespot (a clear spot in the center of the eye) in…

A: Recombination during gametogenesis refers to separation of linked genes and their migration to…

Q: In mice, the allele C for colored fur is dominant over the allele c for white fur, and the allele V…

A: A) Parents Genotype should be (CC,Vv) and (cc,VV).Mating has occured between a normal colored mice…

Q: Consider the production of flower color in the Japanese morning glory (Pharbitis nil). Dominant…

A: Considering the flower color production in the Japanese morning glory (Pharbitis nil). Genotype for…

Q: In humans brown eye color is dominant to blue eye color. Suppose that your mother is homozygous and…

A: According to the question, the brown color of the eye is dominant over the blue color of the eye.…

Q: In cats, coat color is an X-linked trait with incomplete dominance.  Yellow coat is caused by the…

A: In this question, we are given coat color of cat as phenotype. Yellow color of coat is caused by…

Q: Coat color in cats is determined by genes at several different loci. At one locus on the X…

A: An organism has phenotype and genotype. Phenotype is the observable characteristics and genotype is…

Q: The parental genotypes for a series of crosses are wild-type male fruit flies mated to females with…

A: Drosophila melanogaster is a small, common fly found near ripe and rotten fruit. It has been used…

Q: Calico is a coat color found in cats, which is caused by a X-linked, co-dominant allele Female cats:…

A: Co-dominance is condition in which two alleles of the gene are equally dominant, hence are termed as…

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 occurs between the heterozygous parent for…

Q: You have been tasked by a pharmaceutical company to generate a novel strain of Cannabis sativa for…

A: It is given in the question that, Gene 1 - T = Producing large amount of Terpenes (dominant)   ;…

Q: In humans, being right-handed (R) is dominant over being left-handed (r), and normal vision is…

A: Right handed = RR, Rr Left handed = rr Colour blind = XcXc, XcY Normal vision = XX, XY, XcX

Q: Which of the following statements illustrates codominance? Select one: a. Red flowers crossed with…

A: Non-mendelian inheritance is the type of inheritance pattern in which the traits do not segregate…

Q: Trait W is found in the individuals represented by the shaded symbols in the following pedigree.…

A: Pedigrees are used to investigate the pattern of inheritance of a particular trait through…

Q: In mice, short hair is dominant over long hair. If a heterozygous shorthaired male is crossed with a…

A: Genetics is the study of genes, genes variation, and heredity. Inheritance is the foundation upon…

Q: owl, barring (B) is sex-linked and dominant, the recessive allele (b) producing solid black color…

A: Sex linked character is usually present on the sex chromosomes which are either in the form of x or…

Q: A cross between two pure breeding pea plants in which one parent produced yellow seeds and the other…

A: Punnet square is the diagrammatical square that helps to determine all resultant combinations of…

Q: You are studying the inheritance pattern of hair color in troll dolls, which have XY sex…

A: Given: In troll doll, XY determination is present. Crossed a true-breeding blue-haired male with a…

Q: eye color is determined by a recessive allele, v, of an X-linked gene. The wildtype color is…

A: Eye color in Drosophila is an example of a X-linked trait: In Drosophila, the gene for eye color is…

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 genetics, the dash symbol (–) is a “wild card” that stands for either the dominant allele or the…

A: The three laws of genetics were given by Gregor John Mendel. These laws are: Law of dominance Law…

Q: Color blindness is a X-linked trait in human.  A cross was done and F1 showed half of the female and…

A: Colour blind inheritance is a kind of X linked recessive inheritance which means that usually males…

Q: In guinea pigs, black hair is dominant over white hair. If a homozygous black guinea pig (father)…

A: Homozygous:  The term homozygous refers to individuals who have the same or identical alleles for a…

Q: What is the predicted phenotypic ratio for the offspring of the following cross?  Allele phenotypes:…

A: Given  R - red (dominant)  r - white (recessive)  T - thin leaf (dominant)  t - broad leaf…

Q: In snapdragons, heterozygotes for one of the genes have pink flowers, whereas homozygotes have red…

A: Incomplete dominance is an intermediate form of inheritance. In snapdragon, it was observed that…

Q: short eared mutant male rabbit was crossed with normal long eared doe rabbits and 29 long eared and…

A: This is a type of monohybrid cross because only one character is involved. Dominant character can…

Q: A cross was performed using Drosophila melanogaster involving a female known to be heterozygous for…

A: An organism has phenotype and genotype. Phenotype is the observable characteristics and genotype is…

Q: Red eyes are dominant on fruit flies but an x-linked recessive allele will produce white eyed flies.…

A: Eye colour of Drosophila is X linked traits . This means genes for Eye colour trait is available on…

Q: In corn plants, a dominant allele (K) allows kernel colour and a recessive allele (k) inhibits…

A: Given that, allele K is dominant over allele k, where K represents kernel color and k inhibits…

Q: Daniel McDonald and Nancy Peer determined that eyespot (a clear spot in the center of the eye) in…

A: Three individual determined that eyespot in the flour beetles is caused by the X-Iinked alleles (es)…

Q: In snails, the maternal gene influences the phenotype of the direction of snail coiling. If D is an…

A: dd female cross with dd male..

Q: The pedigree below shows the inheritance of red-green colorblindness, an X-linked recessive trait…

A: X chromosome of son is always comes from the mother. Only Y chromosome comes from the father . Any…

Q: For the purpose of the assignment, we will refer to XY individuals as male and XX individuals as…

A: Genetics is the branch of biology that deals with the study of genes, their variation, and heredity…

Q: Pigeons may exhibit a checkered or plain color patterns. In a series of controlled mating the…

A: In the above question, the checkered-color pigeon is crossed with a plain colored pigeon. In this…

Q: In chickens, the black (B) and white (W) alleles for feather color are codominant. If a homozygous…

A: Codominant cross results expression of both the alleles at the same time simultaneously, hence if we…

Q: You are looking at a maternal effect gene that comes in 2 alleles, B (brown) is dominant and b…

A:

Q: You are looking at a maternal effect gene that comes in 2 alleles, B (brown) is dominant and b…

A: BB (female)   ×   bb (male) For this cross all the progenies will be heterozygous for the gene with…

Q: In cats, coat color is an X-linked trait with incomplete dominance. Yellow coat is caused by the…

A: When representing x linked traits , points to be kept in mind for the question above Only females…

Q: In mice, the presence of AA alleles give rise to the agouti fur color, AAY gives rise to a yellow…

A: Introduction  Lethal genes are the genes which are essential for survival. The allele which created…

Q: In fruit flies, the phenotype for eye color is determined by a certain locus. E indicates the…

A: In the Drosophilidae family, Drosophila melanogaster is a fly species that are Diptera in the order.…

Q: In lab mice, reddish-brown coat phenotype is termed “red”. The gene for coat color is X-linked. The…

A: A type of inheritance in which the gene mutation is present on the sex chromosome or X chromosome is…

Q: The flowers of 4 o‟ clock plants may be red, pink or white. Reds crossed to whites produced only…

A: The observed flowers are given by:   Color Frequency Red 113 White 129 Pink 242   N = 484…

Q: Using the following information perform following crosses using the forked line and predict all…

A: Forked line method, we consider few steps: 1) Consider each multi-hybrid crosses and monohybrid…

Q: A reciprocal cross is useful when determining which of the following? If a trait is sex-limited…

A: Reciprocal cross It is a concept of crossing F1 hybrids with one of the parents. When F1 is cross…

Q: The Labrador Retriever’s coat colours are black, yellow, and chocolate. Yellow is produced by the…

A: A gene is the basic structural and functional unit of heredity. In humans, each gene consists of two…

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: In rabbits grey hair is dominant to white & black eyes are dominant to red.     -Cross 2 parents…

A: This is an example of dihybrid cross because it involves two pairs of contrasting traits at the same…

Q: n cats, black fur color is caused by an X-linked allele; the other allele at this locus causes…

A: One of the most interesting examples of inheritance biology is the fur color inheritance in cats. In…

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.