Posts by axel

Total # Posts: 22

Math
Find the sum of the absolute values of all integral values of X that make the following expression prime: (x^2-5x)^2 - 34

Math
Consider the regression through the origin model y = bx Assume that there are n pairs of observations of the response and the explanatory variables, and that these observations are indexed by i. Derive the least-squares estimator for the slope parameter b in this model.

Science - biology - university
A couple where both the man and woman are albino decided to have children. Remember that albinism is inherited as a rare autosomal recessive trait. To their surprise their first child had normal skin pigmentation. They eventually have two more children and they also have norma...

Science
Thank you very much, I dont remember learning it like this but this certainly does help alot and this makes it easier to understand. Once again, thank you

Science
My original question: In a diploid organism with 2n=8, what is the probability that one of its gametes will contain only paternally derived chromosomes (ie, not a mixture of paternal and maternally derived chromosomes)? PsyDAG replied: Since 4 of the 8 are paternal, 4/8 * 3/7 ...

Science
can you please explain how you got those numbers.

Science
In a diploid organism with 2n=8, what is the probability that one of its gametes will contain only paternally derived chromosomes (ie, not a mixture of paternal and maternally derived chromosomes)?

Science
for number two you gave to calculate the probability of only 3 male offsprings being born and the probability of at least one being black.

Science
Black coat colour in Labrador Retrievers is produced by the dominant B allele. Brown labs are homozygous recessive (bb). Duke, a black male, whose mother was brown, is mated with Shadow, a black female, who in a previous mating with another father produced brown offspring. Wha...

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