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Out of 200 offspring of heterozygous brown rabbits and white rabbits how many white rabbits would be expected?
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∙ 15y ago
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∙ 15y ago
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If a black and brown rabbit mate out of 4 offspring how may would be dark brown?
It might be 2 dark brown rabbits
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 color are most rabbits?
There are four main colours of rabbits They Are: Brown Black White Grey
In a group of 30 rabbits 27 have brown fur and three have white fur. What is the frequency of rabbits with brown fur?
90% apex
What are the things an animal needs to survive?
Animals need food/water, habitat, the need to be-able to reproduce and adapt to there envirnoment.Animals need food,water, habitat and shelter
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%.
If a black and brown rabbit mate out of 4 offspring how may would be dark brown?
It might be 2 dark brown rabbits
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
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).
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
Blue-eyed blonde mates with brown-eyed brunette?
It would depend on the brunette's genotype. If they are heterozygous for that trait, then the offspring could be any combination of blonde hair, brown hair, blue eyes, or brown eyes. If the brunette is homozygous dominant, then it's 100% sure the offspring will have a phenotype the same as the brunette.
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%.
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!
How do you determine how many offspring will be the dominant color?
You can use a Punnet Square to figure it out. For example, if gray elephants dominate over brown elephants, and you cross 1 homozygous gray elephant (GG) and one homozygous brown elephant (gg), the Punnet square predicts that the offspring will all be heterozygous Gg. They will all be gray, however, because gray dominates over brown.
