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What else can I help you with?
Show the cross between 2 heterozygous dogs. black fur B is dominant to brown fur b?
The Punnett square for crossing two heterozygous dogs (Bb x Bb) would result in a 25% chance of offspring with homozygous dominant black fur (BB), a 50% chance of offspring with heterozygous black fur (Bb), and a 25% chance of offspring with homozygous recessive brown fur (bb).
If a black and brown rabbit mate out of 4 offspring how may would be dark brown?
If a black and brown rabbit mate, their offspring could potentially have a mix of black, brown, and dark brown fur. It is not possible to predict exactly how many offspring would be dark brown without knowing the genetics of the parents. Each offspring has a different combination of genes that determine its fur color.
What Guinea pig coat color is determined by a single gene. The allele for black coat color is dominant to brown. In a cross between two black-haired guinea pigs 20 offspring are born. If both parents?
If both parents are black-haired guinea pigs and the black coat color is dominant, they could either be homozygous (BB) or heterozygous (Bb) for the black coat gene. If both are heterozygous (Bb), the offspring ratio would typically be 25% homozygous black (BB), 50% heterozygous black (Bb), and 25% brown (bb). Therefore, among the 20 offspring, we would expect around 15 to be black (BB or Bb) and about 5 to be brown (bb) if the parents are Bb. If both parents are homozygous (BB), all offspring would be black.
What are the 13 different species of finches?
There are so many species of finch--and of many other members of the animal kingdom--because of something called natural selection. Natural selection comes about because of hereditary variations within a population, organisms producing more offspring than can survive, and because these offspring vary in their ability to in turn produce offspring and survive. For example, let's say there was a population of white-coated rabbits living in a woodland habitat. A particular mating between two white rabbits resulted in many white-coated offspring, but a few brown-coated offspring as well. (This is an example of hereditary variation.) Of all the offspring, many die because there are more than can survive, but those that die in greater numbers are white, not brown. This is because a white-coated rabbit is not suited to its habitat; its coat stands out to predators against the brown tones of the woodland. The brown rabbits, however, blend in (called camouflage) and so are not noticed as readily by predators. These rabbits will survive much better than their white siblings, and will go on to produce offspring of their own. Eventually, all or nearly all the white rabbits will be wiped out because their physical traits do not suit their habitat. All that will remain are the brown rabbits and their offspring. Each generation of brown rabbits will pass on their advantageous brown coats to the next... It's rather fascinating. To me, it's a miracle of nature that such hereditary variations occur at all. It's as though nature knows it needs to make changes in its populations and so it does!
What is the most likely color my baby rabbits will turn out if both parents are white?
Probably balck. that or brown. i don't think white because that never happens.
If Ted has blue eyes and Mary is heterozygous what is the chance that their offspring will have brown eyes?
Assuming that you mean heterozygous for blue/brown eyes, 50%.
Show the cross between 2 heterozygous dogs. black fur B is dominant to brown fur b?
The Punnett square for crossing two heterozygous dogs (Bb x Bb) would result in a 25% chance of offspring with homozygous dominant black fur (BB), a 50% chance of offspring with heterozygous black fur (Bb), and a 25% chance of offspring with homozygous recessive brown fur (bb).
What would be the expected frequency of agouti brown offspring in the litter?
3/16
If a homozygous dominant parent and a heterozygous parent are crossed what percentage of the offspring are expected to be homozygous dominant?
Rr
If a homozygous brown mink is mated with a silver-blue mink and 8 offspring are produced how many would be silver-blue?
If a homozygous brown mink is mated with a silver-blue mink, the offspring would all be heterozygous for brown. When crossed with a silver-blue mink, half of the offspring would inherit the silver-blue allele, so out of 8 offspring, 4 would be silver-blue.
In birds black feathers are dominant over brown feathers Two birds with black feathers were crossed They had an offspring with brown feathers How is this possible?
Both parents were heterozygous (Bb). The offspring would statistically be: BB, Bb, Bb, and bb. All but the bb offspring would be black and the bb would be brown.
A brown mouse is repeatedly mated with a white mouse all the offspring are brown if two of the offspring are mated what fraction of the F2 mice will be brown?
75% or 3/4. The two F1 (offspring) mice have a genotype Bb, and express the dominant (brown) trait. When they mate, 1/4 will be BB (homozygous dominant - brown), 2/4 will be Bb (heterozygous - brown), and 1/4 will be bb (homozygous recessive - white).
If a black and brown rabbit mate out of 4 offspring how may would be dark brown?
If a black and brown rabbit mate, their offspring could potentially have a mix of black, brown, and dark brown fur. It is not possible to predict exactly how many offspring would be dark brown without knowing the genetics of the parents. Each offspring has a different combination of genes that determine its fur color.
If a child has blond hair and both of her parents have brown hair what does that tell you about the allele for blond hair?
Both of the parents were heterozygous with the blonde hair allele, which is recessive. When there are two parents that are heterozygous, there is a 25% chance their offspring will get two of the recessive alleles. A punnett square can be useful when determining the different phenotypes and genotypes possible in offspring
Which is the dominant gene father has dark brown eyes mother has blue eyes?
Sure you don't mean heterozygous dominant? If you don't there would be no blue eyed offspring. Let's assume you meant heterozygous dominant.B = brownbl = blueBbl X Bbl1/4 of the offspring would have blue eyes, 25%.
In rabbits B is an allele for black coat and b is an allele for brown coat so what the genotypes for a rabbit that is homozygous for black coat and another that is heterozygous for black coat?
Black coat homozygous: BB Black Coat heterozgous: Bb
What are the 13 different species of finches?
There are so many species of finch--and of many other members of the animal kingdom--because of something called natural selection. Natural selection comes about because of hereditary variations within a population, organisms producing more offspring than can survive, and because these offspring vary in their ability to in turn produce offspring and survive. For example, let's say there was a population of white-coated rabbits living in a woodland habitat. A particular mating between two white rabbits resulted in many white-coated offspring, but a few brown-coated offspring as well. (This is an example of hereditary variation.) Of all the offspring, many die because there are more than can survive, but those that die in greater numbers are white, not brown. This is because a white-coated rabbit is not suited to its habitat; its coat stands out to predators against the brown tones of the woodland. The brown rabbits, however, blend in (called camouflage) and so are not noticed as readily by predators. These rabbits will survive much better than their white siblings, and will go on to produce offspring of their own. Eventually, all or nearly all the white rabbits will be wiped out because their physical traits do not suit their habitat. All that will remain are the brown rabbits and their offspring. Each generation of brown rabbits will pass on their advantageous brown coats to the next... It's rather fascinating. To me, it's a miracle of nature that such hereditary variations occur at all. It's as though nature knows it needs to make changes in its populations and so it does!
