See Also: Acrocentric chromosome(health)
acrocentric chromosome(medicine)
Chromosome, acrocentric(health)
acrocentric(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
chromosome 16(medicine)
Chromosome(health)
chromosome 9(medicine)

observer (medicine) and Acrocentric chromosome (health)


observer (medicine)


observer


One who perceives, notices, or watches; in behavioural research with humans, the investigator or his/her surrogate.

Origin: L. Observo, to watch

Nonparticipant observer, an investigator who studies a group of subjects engaged in certain activities but does not directly participate in these activities, presumably being able to study them more objectively.

Participant observer, an investigator who while studying the activities of a group of subjects also participates in their activities, presumably being able to gain more detailed, relevant information but with less objectivity.


Acrocentric chromosome (health)


"A chromosome (one of the microscopically visible carriers of the genetic material DNA) with its centromere (the ""waist"" of the chromosome) located quite near one end of the chromosome. The ""acro-"" in acrocentric comes from the Greek ""akron"" meaning ""the end."" Humans have 5 pairs of acrocentric chromosomes. Down syndrome (trisomy 21) is due to an extra acrocentric chromosome, namely chromosome 21.A chromosome with a centromere near one end. Down syndrome (trisomy 21) is due to an extra acrocentric chromosome."