This baby was noted to have a brachial plexus injury with de…

This baby was noted to have a brachial plexus injury with decreased movement and abnormal positioning of the right upper extremity (shoulder adduction, internal rotation, elbow extension and forearm pronation) following a difficulty obstetrical delivery. This is called____?

Two individuals of genotypes AAbb and aaBB, respectively, ma…

Two individuals of genotypes AAbb and aaBB, respectively, mate with one another and produce an F1 offspring. If the two loci (A and B) are very closely linked, what will be the genotypes of most of the gametes produced by the F1 individual? (hint: think about what the chromosomes look like in the parents and F1).

There is a rare disease called ptosis which results in the a…

There is a rare disease called ptosis which results in the affected individual being unable to completely open their eyes. (I’m not making this up!)  The condition is caused by an autosomal dominant allele P.  A woman who has ptosis marries a man with normal eyelids.  The woman’s father had ptosis, but her mother had normal eyelids.  Her father’s mother (her grandmother) had normal  eyelids.  What is the genotype of the woman’s paternal grandmother? What must be the phenotype of her paternal grandfather? What proportion of the women’s children is expected to have ptosis?

In cocker spaniels, black color (B) is dominant over red (b)…

In cocker spaniels, black color (B) is dominant over red (b), and solid color (S) is dominant over spotted (s). If the genes are unlinked, and the offspring of BBss and bbss individuals are mated with each other, what fraction of the F2 generation will be black and spotted?