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Author Question: When an allele is NOT expressed in heterozygotes, but is only expressed in homozygotes, it is said ... (Read 328 times) |
Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
There are more bacteria in your mouth than there are people in the world.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.