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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).
A white mouse whose parents are both produces only brown offspring when mated with a brown mouse The white mouse is most probably what?
White fur color is recessive and brown is dominant. The white mouse has a genotype of bb and the brown mouse has a genotype of BB. All offspring would be heterozygous with a genotype of BB and brown fur.
What was the phenotype of the offspring that did not share of the parents phenotype?
If both parents have the same phenotype, but the offspring did not share that phenotype, then it is likely that the parents have a dominant phenotype, but the offspring has a recessive phenotype, which means that the offpring's genotype would be homozygous recessive, and it's parents' genotypes would be heterozygous. For example, the parents may both have the genotype Bb, which gives them black fur. Approximately 25% of their offspring should have the genotype bb, which gives them the phenotype of white fur.
What was the genotype of the offspring the did not share the parents' phenotype?
If both parents have the same phenotype, but the offspring did not share that phenotype, then it is likely that the parents have a dominant phenotype, but the offspring has a recessive phenotype, which means that the offpring's genotype would be homozygous recessive, and it's parents' genotypes would be heterozygous. For example, the parents may both have the genotype Bb, which gives them black fur. Approximately 25% of their offspring should have the genotype bb, which gives them the phenotype of white fur.
Two black guinea pigs were mated together thirteen offspring were black and four were white what arithmetic ratio of black to white offspring does this approximate?
no dont let them
What phenotype would you expect from a cross between a red bull and white cow?
The phenotype of the offspring from a cross between a red bull and a white cow would depend on the inheritance pattern of the coat color genes. If the red coat color is dominant over the white, the offspring would likely exhibit a red phenotype. However, if the inheritance follows a codominance pattern, the offspring could display a mixed phenotype, such as roan (a mix of red and white). The specific outcome would ultimately depend on the genotypes of the parents.
When the phenotype of two alleles are blended what are they called?
The blending of the phenotype of the parents in the offspring is known as incomplete. colors of flowers can show incomplete dominance if a red flower is crossed with a white flower and their offspring are pink.
What was the result when Morgan mated white-eyed fruit fly with a red-eye female fruit fly?
All the offspring had red eyes. The white eye trait is recessive, so it did not appear in the offspring.
What is the genotype of the offspring that do not share the parents phenotype?
If both parents have the same phenotype, but the offspring did not share that phenotype, then it is likely that the parents have a dominant phenotype, but the offspring has a recessive phenotype, which means that the offpring's genotype would be homozygous recessive, and it's parents' genotypes would be heterozygous. For example, the parents may both have the genotype Bb, which gives them black fur. Approximately 25% of their offspring should have the genotype bb, which gives them the phenotype of white fur.
Out of 200 offspring of heterozygous brown rabbits and white rabbits how many white rabbits would be expected?
Half of the offspring, or 100 rabbits, would be expected to be white when offspring from a heterozygous brown rabbit and a white rabbit are produced. This is due to the dominant-recessive inheritance pattern where brown is dominant and white is recessive.
If a Red (RR) and White flower (rr) were crossbred resulting in 100 Rr what phenotype(s) would been seen according to the rules of IN-complete dominance?
In incomplete dominance, the phenotype of the offspring is a blend of the parent traits. If a red flower (RR) is crossed with a white flower (rr), all offspring (Rr) would exhibit a phenotype that is intermediate between red and white, often resulting in pink flowers. Therefore, the observed phenotype in this case would be pink.
If a black and white homozygous stallian is mated with a brown mare what would the colt look like?
a horse
