Category: M
-
Multiple genes
Two or more independent pairs of genes whose functions complement each other to produce a cumulative effect upon the same trait.
-
Multiple choice test items
A test item consisting of a stem and several possible answers or responses, only one of which is correct.
-
Multiple causation
The concept that a given disease q.v. has a number of different but interrelated causes. Three general categories exist: (a) host-related factors, (b) agent-related factors, and (c) environmental factors.
-
Multiple birth
The birth of more than one baby at a time, twins, triplets, etc. Two or more babies developing during a single pregnancy. Approximately one out of three multiple births develop from a single zygote (fertilized egg), which divides after conception; these twins (or other multiples) are called monozygotic, monovular, or identical. Because they have the…
-
Multiple-baseline design
An experimental design in which two behaviors of a single subject are selected with one being treated. The behavior that is not treated is used as a baseline against which the treatment can be compared.
-
Multiple alleles
Three or more alternative genes representing the same locus on a given pair of chromosomes.
-
Multiphasic screening
A health screening procedure consisting of a battery of tests administered at one time. The combined use of a group or battery of screening tests as a preventive measure to attempt to identify any of the several diseases being screened for in an apparently healthy population.
-
Multipara
A woman who has given birth to two or more children. Medical designation for a woman who has given birth to more than one live baby. A woman who has carried more than one fetus to the point of viability. A woman who has given birth to a live child after each of at least…
-
Multiorgasmic capacity
The potential to have several orgasms within a single period of sexual arousal and activity.
-
Multimodal approach
A combination of therapies, e.g., drug therapy, behavioral therapy, psychoanalysis, used to assist a patient with mental illness.