Stanley is 65, and for the past couple of years he has been suffering from a gradual worsening of his memory, as well as experiencing some language difficulties and problems with his reasoning and decision making. what is the most likely diagnosis?

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .