TWO WHITE MICE MATE. THE MALE HAS BOTH A WHITE AND A BLACK FUR-COLOR GENE.THE FEMALE HAS ONLY WHITE FUR-COLOR GENES.THE FUR COLOR OF THE OFFSPRING DEPENDS ON THE PAIRS OF FUR-COLORGENES THAT THEY RECEIVE.ASSUME THAT NEITHE THE WHITE NOR THE BLACK GENE DOMINATES.LIST THE POSSIBLE
am i late? 9 years later-
First, please do not use all capitals. Online it is like SHOUTING. Not only is it rude, but it is harder to understand. Thank you.
"possible…." what? Genotypes? Phenotypes?
Genotypes
Black male = Bw
White female = ww
From the color and genotype indicated in your data, it seems like your assumption of neither gene dominating is false.
Use a Punnett square to find genotypes of offspring.
The possible fur color combinations in the offspring can be determined by examining the possible allele combinations that a mouse can inherit from its parents. In this case, the male mouse has both a white and a black fur-color gene, while the female mouse only has white fur-color genes.
Let's assign the following labels to the alleles:
- W for white fur-color gene
- B for black fur-color gene
Now let's consider the different combinations of alleles that the offspring can inherit:
1. Offspring inherits a white fur-color gene from both parents:
- Genotype: WW
- Phenotype: White fur
2. Offspring inherits a white fur-color gene from the male and a black fur-color gene from the female:
- Genotype: WB
- Phenotype: White fur
3. Offspring inherits a black fur-color gene from the male and a white fur-color gene from the female:
- Genotype: BW
- Phenotype: White fur
4. Offspring inherits a black fur-color gene from both parents:
- Genotype: BB
- Phenotype: Black fur
Therefore, the possible fur color combinations in the offspring are:
- White fur
- White fur
- Black fur
- White fur
Note that since neither the white nor the black gene dominates, the presence of a black gene does not result in black fur.
To determine the possible fur colors of the offspring, we need to understand the pattern of inheritance and the genetic makeup of the parent mice.
In this scenario, we have a male mouse that carries both a white and a black fur-color gene (heterozygous), and a female mouse that only has white fur-color genes (homozygous for white). Since neither the white nor the black gene dominates, we can assume that both alleles are codominant, meaning both traits will be expressed.
Let's break down the possible combinations of genes that the offspring could inherit from each parent:
Male (White and Black gene): W (white gene) + B (black gene)
Female (White gene only): W (white gene) + W (white gene)
To determine the possible fur color combinations from each parent, we can cross each male gene with each female gene:
Male gene (W + B) x Female gene (W + W)
Possible outcomes: WW and WB
So, there are two possible fur color combinations for the offspring:
1. WW - This combination consists of two white fur-color genes inherited from both parents, resulting in white fur.
2. WB - This combination consists of a white fur-color gene inherited from the female and a black fur-color gene inherited from the male, resulting in a mixed fur color.
Therefore, the possible fur colors of the offspring are white (WW) and mixed (WB).