In some mice, short hair is completely dominant over long hair. If a long-haired mouse is bred with a short-haired mouse, what is the probability that the offspring will include mouse pups with short hair?
A.) There is not enough information to say.
B.) 25% chance
C.) 0% chance
D.) 50% chance
G.) 75% chance
I did the crossing and everything and received 50% chance of short hair and still got it wrong what did I do wrong?
To determine the probability of the offspring having short hair, we need to consider the genotypes of the parent mice.
In this case, the short-haired mouse must have at least one copy of the dominant short hair allele (let's call it S), while the long-haired mouse must have two copies of the recessive long hair allele (let's call it s).
When these two mice are crossed, the possible genotypes for the offspring are: SS (short-haired), Ss (short-haired), and ss (long-haired).
Since short hair is completely dominant over long hair, any mouse with at least one copy of the S allele will exhibit short hair. Therefore, both SS and Ss genotypes will result in short-haired mice.
When we consider the Punnett square for this cross, we find the following combinations:
S s
------------
Ss Ss
Thus, there is a 100% probability that the offspring will include mouse pups with short hair. However, none of the provided answer options match this probability, so it seems like there might be an error in the given choices.
If you got a 50% chance of short hair from your crossing analysis, it suggests that there might have been an error in your calculations or understanding of the genetic concept. Double-check your work to ensure you accurately accounted for the dominance and recessiveness of the alleles.