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BbxBb = 25% homozygous BB; 50 % heterozygous Bb, and 25% homozygous recessive bb.

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Q: Show the cross between 2 heterozygous dogs. black fur B is dominant to brown fur b?
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If a homozygous black guinea pig is crossed with a homozygous white guinea pig what is the probability that an offspring will have black fur?

100% because BB is dominant over bb and all the crosses make Bb


Out of 200 offspring of heterozygous brown rabbits and white rabbits how many white rabbits would be expected?

36


Can a black cow and a bull have a white calf?

No. Black is a dominant colour, no matter what colour the bull is. If the bull is white, the calf will be grey. If a bull is black, the calf will be black; if a bull is a blue roan, the calf will be most likely a darker roan or even black; if a bull is red or brown, the calf will be black; if a bull is yellow or orange the calf will be either grey or black.


Why is your poo brown and black?

the normal poo is brown and black poois when you are constepating


Whats the difference between a black horse and a dark brown horse with black hair?

ANSWER #1: Dark brown horses usually have a lighter brown coloured muzzle and underbelly , whereas black horses are completely jet black and don't have lighter areas. ANSWER #2: In the horse world, terminologies related to horse color can seem quite confusing. :D To make it easier, just remember that there are actually VERY FEW truly BLACK horses. Most "black" horses have brown on their body somewhere (usually the muzzle/nose & belly as stated above). Even though a horse may appear to be jet black, if they have ANY brown on their body ANYWHERE, then they are classified as a brown horse. A black is just that - totally black with no brown. (White markings such as socks or stockings on the legs or stars or blazes on the face are okay. They would still be classified as a black as long as there is no brown)

Related questions

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


When you cross a homozygous brown horse with a heterozygous brown horse which will be the dominant trait?

a brown horse i just did this in school a few weeks ago


A plant can have either brown B or red b leaves Brown is the dominant trait If a plant has genotype bb which best describes the plant?

heterzygous with brown leaves


Diffrence between homozygous and heterozygous?

They refer to the alleles in a genotype. For the basics of genetics, we can say that each allele is either dominant or recessive. Dominant is represented by an uppercase letter, and recessive a lowercase. If the genotype is AA, it is homozygous dominant. If it is aa it is homozygous recessive. If it is Aa, it is heterozygous. Simply, homozygous means that both of the alleles are the same and heterozygous means it has one of each allele.


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 homozygous dominant brown mouse is crossed with a heterozygous brown mouse (White is the recessive color)?

A pretty bow


How does heterozygous and homozygous differ?

Heterozygous is when you are a hybrid, and you have one recessive and one dominant allele. Like Aa for example. people who are homozygous are either homozygous dominant or homozygous recessive. Homozygous recessive is when you have two recessive alleles, like aa. Homozygous dominant you could either have Aa or AA. A capital letter represents the dominant allele, and a lower case letter represents the recessive allele. If one of your parents had brown eyes, and one had green, and the brown is dominant and the green is recessive, and you were heterozygous, you would have brown eyes. E (lets just say stands for eyes) would be dominant and e would be recessive. if you were heterozygous, you would have Ee. You'd have brown eyes because the dominant allele masks the recessive allele. and yes im only 13 years old im sorry if its too confusing i probably didnt word it right:)


What is the difference between homozygous and heterozygous organism?

it's to do with genes, a homozygous organism has two alleles that are the same, whereas a heterozygous organism will have two different alleles. eg, on a chromosome for eye colour, a homozygous example would have both alleles for say, blue eyes. a heterozygous example would have an allele for blue and an allele for brown, where brown would be dominant, reccesive, or cooperative.


Is it possible for blue eyed parents to have a brown eyed baby?

Yes, buy only if the parents are heterozygous for the trait and if the trait is dominant.


What is heterozygous dominant?

It's actually just heterozygous. That means that one allele is dominant and one allele is recessive. The result is a dominant trait, but the recessive gene may come back in future generations.


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%.


Is eye color a homozygous recessive genetic disorder?

Blue eyes - homozygous recessive Brown eyes - homozygous dominant Brown eyes with one brown allele and one blue allele - heterozygous