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____?
A PTA observes a patient ambulating in the clinic and notes…
A PTA observes a patient ambulating in the clinic and notes that the patient’s pelvis drops on the right during left stance phase. Gluteus medius muscle weakness causes this deviation. The gluteus medius muscle is innervated by the ____?
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).
A man with type A blood is married to a woman with type B bl…
A man with type A blood is married to a woman with type B blood. You have no other information about them. What are the possible blood types of their children?
The wild-type allele of a gene is:
The wild-type allele of a gene is:
A man with straight hair and a woman with curly hair get tog…
A man with straight hair and a woman with curly hair get together and have quadruplets! All of them have wavy hair. What does this tell you about the nature of the hair type alleles?
In mice, short hair is dominant to long hair. If a short-hai…
In mice, short hair is dominant to long hair. If a short-haired individual is crossed with a long-haired individual and both long- and short-haired offspring result, one can conclude that:
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?
Very few genes have been located on the Y chromosomes of hum…
Very few genes have been located on the Y chromosomes of humans. Y-linked genes include a gene called testis-specific protein Y. A male with this gene will
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?