In a hypothetical breed of dogs, coat color is controlled by two genes. There are six...

In a hypothetical breed of dogs, coat color is controlled by two genes. There are six different coat colors in this breed: black, brown, cream, gray, silver, and tan. Consider the following crosses.

Cross 1: Black females from a lineage of all black dogs are crossed with brown males from a lineage of all brown dogs. F1 males and females are all black. When F1 are intercrossed, F2 males and females are black or brown.

Cross 2: Black females from a lineage of all black dogs are crossed with tan males from a lineage where all males are tan and all females are cream. F1 males are black, F1 females are gray. When F1 are intercrossed, F2 males and females are black, brown, gray, or tan.

Cross 3: Silver females from a lineage where all females are silver and all males are gray are crossed with brown males from a lineage of all brown dogs. F1 males and females are all gray. When F1 are intercrossed, F2 males are black, brown, gray, or tan, F2 females are cream, gray, silver, or tan.

Select the correct statements regarding the mode of inheritance of the coat color genes.

A) Both genes are X-linked.

B) Both genes are autosomal.

C) One of the genes modifies the expression of the other gene.

D) Each gene has an additive effect on the intensity of coat color.

E) Each gene independently specifies three colors.

F) One of the genes is autosomal, and the other is X-linked.

Solutions

Expert Solution

gladiator answered 1 year ago

Next > < Previous

Related Solutions

Suppose that a particular gene that controls coat color in dogs is controlled by four alleles...

Suppose that a particular gene that controls coat color in dogs is controlled by four alleles in the population. These alleles are called cch (chinchilla dog), cd (white dog with dark eyes), cb (pale gray dog) and c (albino dog). The alleles are given from the most dominant to the most recessive. Let’s assume that a particular population of these dogs is in Hardy-Weinberg equilibrium. The allele frequencies for our four alleles are: cch = 0.37 cd = 0.23 cb...

In cocker spaniels, solid coat color is dominant over spotted coat color. If two heterozygous dogs...

In cocker spaniels, solid coat color is dominant over spotted coat color. If two heterozygous dogs were crossed to each other, what would be the probability of the following combinations of offspring? a. A litter of eight pups, two with solid fur and six with spotted fur. b. A first litter of six pups, four with solid fur and two with spotted fur, and then a second litter of five pups, all with solid fur. c. A first litter of...

In a population of mice, coat color is controlled by a gene locus with two alleles,...

In a population of mice, coat color is controlled by a gene locus with two alleles, B and W. BB mice are brown, BW are tan and WW mice are white. What is this type of inheritance called? In this population there are 20 brown mice 15 tan mice and 30 white mice. Calculate p and q for this population where p = the allele frequency of B and q = the allele frequency of W.

The coat color in mink is controlled by two codominant alleles at a single locus. Red...

The coat color in mink is controlled by two codominant alleles at a single locus. Red coat color is produced by the genotype R1R1, silver coat by the genotype R1R2, and platinum color by R2R2. White spotting of the coat is a recessive trait found with the genotype ss. Solid coat color is found with the S- genotype. Two crosses are made between mink. Cross 1 is the cross of a solid, silver mink to one that is solid, platinum....

In dogs, solid coat color (S ) is dominant over white spotted coat (s ). In...

In dogs, solid coat color (S ) is dominant over white spotted coat (s ). In a cross between two heterozygous dogs, what would be the probability of having a first litter of six pups, the firstborn with spotted fur, and then among the next five, three with solid fur and two with spotted fur; and then a second litter of seven pups in which the firstborn is spotted, the second born is solid, and then the remaining five pups...

In dogs, the allele for black coat color (B) is dominant to the allele for brown...

In dogs, the allele for black coat color (B) is dominant to the allele for brown coat color (b). But if a dog has two copies of the recessive allele for a pigment-depositing gene (e), it can only have yellow coat color. In a cross of two doubly heterozygous black dogs (BbEe x BbEe), what fraction of the next generation would we expect to be yellow? WHY? a.1/8 b.1/4 c.2/3 d.3/16

In humans, hair color is controlled by the interaction of two genes. The same pigment, melanin,...

In humans, hair color is controlled by the interaction of two genes. The same pigment, melanin, is present in chestnut-haired and blond-haired people, but chestnut people have much more. Brown hair (B) is dominant of blonde (r). Feeling melanin depends on another gene. The dominant form of this second gene (M) allows the synthesis of melanin; the recessive form (m) prevents such synthesis. Recessive homozygous (mm) are albinos. For each of the following junctions mention the phenotype of the parents....

Cat coat color is controlled by an X-linked gene with two alleles: XB= Black and XO...

Cat coat color is controlled by an X-linked gene with two alleles: XB= Black and XO = Orange. A population of cats in Tampa was found to consist of the following phenotypes: Black Orange Calico Totals Males 311 42 0 353 Females 277 7 54 338 Calculate the allelic frequency using all of the available information.

In Labrador retrievers coat color is controlled by two independently assorting loci. The B locus controls...

In Labrador retrievers coat color is controlled by two independently assorting loci. The B locus controls hair color; black (B) is dominant to chocolate (b). A second locus, E, allows for deposition of the color on the hairs. The homozygous recessive condition at this locus (ee) produces a yellow dog, regardless of whether the animal is BB, Bb, or bb. You discover that your female yellow Labrador is pregnant, and she delivers a litter of 5 black puppies, 2 chocolate...

Calico cats have two genes that govern their coat color. One gene codes for the white...

Calico cats have two genes that govern their coat color. One gene codes for the white undercoat and the other codes for the fur colors black and orange and this gene is X-linked. We will look at the gene for black and orange fur color only. In this situation, both black and orange are codominant, so that heterozygous individuals are a different phenotype. Based on this information, what would black, orange and calico female cats' genotypes be? What would be...

Subjects