The black guinea pig is homozygous for the black coat color gene, while the albino guinea pig is homozygous for the albino gene. When the albino is crossed with a black guinea pig, all the offspring inherit the black coat color gene but show the dominant black phenotype. When the albino is crossed with a second black guinea pig that is heterozygous for the gene, it leads to a 3:1 ratio of black to albino offspring due to the inheritance of the albino gene.
The black guinea pig is likely heterozygous (Bb) for coat color, while the white guinea pig is homozygous recessive (bb). The black guinea pig passes on a black allele to all offspring, resulting in 4 black (Bb) and 2 white (bb) offspring.
A test cross with a homozygous recessive guinea pig (bb) would reveal the genotype of the black guinea pig. If all offspring are black, then the black guinea pig is most likely homozygous dominant (BB). If both black and white offspring are produced, then the black guinea pig is likely heterozygous (Bb).
The offspring will look more like the mom but they will have mid hair.
A breeder could determine if a rough-coated guinea pig is homozygous or heterozygous by conducting a test mating. Breeding the rough-coated guinea pig with a smooth-coated guinea pig would show if the rough coat is dominant or recessive. If all the offspring have rough coats, it indicates the rough-coated guinea pig is homozygous for the trait. If both rough and smooth-coated offspring are produced, then the rough-coated guinea pig is heterozygous.
4 offsprings
depends on the two guinea pigs genotypes. could be anywhere from 75 to 100 percent.
To determine if a black guinea pig is homozygous or heterozygous for black fur, you would need to cross it with a white guinea pig. If the offspring are all black, then the black guinea pig is homozygous. If any white offspring are produced, then the black guinea pig is heterozygous.
This is probably the result of the brown genes being dominant and the white genes being recessive. this is correct.
100% because BB is dominant over bb and all the crosses make Bb
Abyssinian
No, guinea pigs and possums can't be crossed. Guinea pigs are Eutherians while possums are marsupials. Species as far apart as these simply can't be crossed.