In the horse, the A locus governs the distribution of pigment in the coat. The A...
In the horse, the A locus governs the distribution of pigment in the coat. The A locus has a series of multiple alleles. These alleles control the following phenotypes: A+ = wild type (bay), A = dark bay (black mane and white tail), a1 = seal brown, a = recessive black. The order of dominance is A+>A>a1>a.
If, in a certain population, the allele frequencies are A+ = 0.4, A = 0.2, a1 = 0.1, and a = 0.3, calculate the expected frequencies of the four possible phenotypes.
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In the horse, the A locus governs the distribution of pigment in
the coat. The A...
In bunnies, variations are known at two unlinked genes responsible for the coat color. The product...
In bunnies, variations are known at two unlinked genes responsible for the coat color. The product of gene Y synthesizes a brown pigment, bunnies homozygous for the recessive loss-of-function allele y of this gene have yellow (golden) coat.The recessive allele b cannot make the black pigment. In a cross of a pure-bred yellow (golden) bunny to a pure-bred brown bunny all offspring are black. Expolain this and predict the frequencies of phenotypes of offspring in F2. ...and the frequencies of...
4. A population has two alleles at the height locus. The Tallele is form the tail...
4. A population has two alleles at the height locus. The Tallele is form the tail ons short trait. T is dominant to t. The frequency of the tall phenotype is found to frequency of the short phenotype is found to be 0.64 (64%). Assuming the pop Weinberg Equilibrium, what are the values for p (frequency of the T alle t allele)? Give an actual number. Space for calculations ne i allele is form the tall trait, and the t...
A pair of co-dominant alleles governs coat colors in Shorthorn cattle: CRCR is red, CRCW is...
A pair of co-dominant alleles governs coat colors in Shorthorn cattle: CRCR is red, CRCW is roan, and CWCW is white. A sample of a cattle population revealed the following phenotypes: 280 red, 140 roan, and 80 white. a) What are the genotypic frequencies? (Use two decimal places in your answer.) b) What are the allele frequencies? (Use two decimal places in your answer.) c) Does the sample indicate that the population is in equilibrium? Statistically support your answer. Be...
1. At least 3 independently assorting loci are known to govern coat color in mice. The...
1. At least 3 independently assorting loci are known to govern coat color in mice. The genotype C- will allow pigment to be produced by 2 other genes. The cc genotype does not allow pigment production resulting in albino mice. The striped “agouti” hair pattern depends on the genotype A- and the aa genotype is nonagouti. Finally, the color of the pigment may be black (B-) or brown (bb). Five different coat colors may be produced by the action of...
can i get help with these 2 problems? In the yawncat (a rare hypothetical animal), the...
can i get help with these 2 problems?
In the yawncat (a rare hypothetical animal), the black coat color allele B is dominant to the brown allele b, but the B locus can only be expressed if the animal has an mm genotype at a second gene locus. Animals that are M_are yellow regardless of which allele from the B locus is present. a. A mating between a yellow-tailed male yawncat and a brown-tailed female yawncat produces 16 offspring with...
The agouti locus in mice has three alleles a, A and AY. Use the following cross...
The agouti locus in mice has three alleles a, A and AY. Use the following cross results to answer the following questions. P: aa (black) x AA (agouti) --> F1: all agouti --> F2: 3 agouti : 1 black P: AYa (yellow) x AYa (yellow) --> F1: 2/3 yellow : 1/3 black P: AA (agouti) x AAY(yellow) --> F1: 1/2 agouti : 1/2 yellow a) The AY allele is dominant for yellow coat color. (Click for List) True False b)...
Question 25 2 pts In dragons, the dominant allele R causes solid tail color, and the...
Question 25 2 pts In dragons, the dominant allele R causes solid tail color, and the recessive alleler results in white spots on a colored background. The black coat color allele Bis dominant to the brown allele b, but these genes can only be expressed if the animal has an mm genotype at a third gene locus. Animals that are M are yellow regardless of which allele from the Blocus is present. A mating between a solid yellow-tailed male dragon...
In horses, the basic color of the coat is governed by the E locus. EE and...
In horses, the basic color of the coat is governed by the E locus. EE and Ee horses can make black pigment, while ee horses are a reddish chestnut. A different locus, the R locus, can cause roan, a scattering of white hairs throughout the basic coat color. However, the roan allele has a serious drawback: RR embryos always die during fetal development. Rr embryos survive and are roan, while rr horses survive and are not roan. The E locus...
3) (2 pts) In a certain breed of dog, the dominant, B, is required for black...
3) (2 pts) In a certain breed of dog, the dominant, B, is required for black fur; it's recessive, b, produces brown fur. However, the dominant, I, is epistatic to the color locus and can inhibit pigment formation to produce white fur. The recessive allele, i, on the other hand, permits pigment deposition in the fur. What would be the phenotypes of the following sets of parents and what would be the results of the mating? a. bbii x Bbli...
1 point Use the information given below to answer this question. A full colour rabbit (CCa)...
1 point Use the information given below to answer this question. A full colour rabbit (CCa) is mated to a light grey rabbit (CchCa). Calculate the theoretical probability of this cross producing each of the following phenotypes shown below. Record your answer as a full percentage for each phenotype as shown in the following order. Full colour: chinchilla: light grey: Himalayan: albino * Multiple alleles control the coat colour of rabbits. • The dominant allele, produces grey colour. • The...
4. A population has two alleles at the height locus. The Tallele is form the tail ons short trait. T is dominant to t. The frequency of the tall phenotype is found to frequency of the short phenotype is found to be 0.64 (64%). Assuming the pop Weinberg Equilibrium, what are the values for p (frequency of the T alle t allele)? Give an actual number. Space for calculations ne i allele is form the tall trait, and the t...
1. At least 3 independently assorting loci are known to govern coat color in mice. The genotype C- will allow pigment to be produced by 2 other genes. The cc genotype does not allow pigment production resulting in albino mice. The striped “agouti” hair pattern depends on the genotype A- and the aa genotype is nonagouti. Finally, the color of the pigment may be black (B-) or brown (bb). Five different coat colors may be produced by the action of...
can i get help with these 2 problems?
In the yawncat (a rare hypothetical animal), the black coat color allele B is dominant to the brown allele b, but the B locus can only be expressed if the animal has an mm genotype at a second gene locus. Animals that are M_are yellow regardless of which allele from the B locus is present. a. A mating between a yellow-tailed male yawncat and a brown-tailed female yawncat produces 16 offspring with...
Question 25 2 pts In dragons, the dominant allele R causes solid tail color, and the recessive alleler results in white spots on a colored background. The black coat color allele Bis dominant to the brown allele b, but these genes can only be expressed if the animal has an mm genotype at a third gene locus. Animals that are M are yellow regardless of which allele from the Blocus is present. A mating between a solid yellow-tailed male dragon...
3) (2 pts) In a certain breed of dog, the dominant, B, is required for black fur; it's recessive, b, produces brown fur. However, the dominant, I, is epistatic to the color locus and can inhibit pigment formation to produce white fur. The recessive allele, i, on the other hand, permits pigment deposition in the fur. What would be the phenotypes of the following sets of parents and what would be the results of the mating? a. bbii x Bbli...
1 point Use the information given below to answer this question. A full colour rabbit (CCa) is mated to a light grey rabbit (CchCa). Calculate the theoretical probability of this cross producing each of the following phenotypes shown below. Record your answer as a full percentage for each phenotype as shown in the following order. Full colour: chinchilla: light grey: Himalayan: albino * Multiple alleles control the coat colour of rabbits. • The dominant allele, produces grey colour. • The...
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