Dictionary » C » Carrier

Carrier

Definition

noun, plural: carriers

(general)
A person or object that transports or conveys.

(immunology)
An asymptomatic person or animal harboring the pathogen, and acts as a vector transmitting the pathogen to others.

(genetics)
(1) A heterozygous individual bearing an unexpressed defective gene.

(2) An organism possessing a recessive gene for a trait, hence, not expressing the trait.

(chemistry)
A catalytic substance that serves as a vehicle for an element or group of atoms from one compound to another.


Supplement

(genetics) A genetic carrier pertains to an organism carrying an unexpressed defective gene for a recessive trait but when mated with another carrier can produce a homozygous offspring that expresses the recessive trait.


Word origin: to carry + -er.

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