What is the probability that this couple will have four children, three sons with short index fingers and one daughter long index fingers?

The product rule is used to solve problems in which

Assuming that 50% of the offspring are male and 50% are female, what is the probability of this couple having a daughter with short index fingers?

The molecular explanation for imprinting (as in the Igf2 gene) is that

With regard to a maternal effect gene, a mother is dd and her haploid oocyte (d) is fertilized by a sperm carrying the D allele.  Which gene products would be found in this fertilized oocyte?

Let F-L represent the long allele and F-S represent the short allele. What are genotypes of this woman and man?

Which of the following features is used to characterize eukaryotic chromosomes? 

Which of the following do you think would cause the most detrimental phenotype?

In eukaryotes, a site within the cell nucleus that is occupied by a single chromosome is a

Assuming that 50% of the offspring are male and 50% are female, what is the probability of this couple having a son with short index fingers?