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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Results from our forum


Re:

... (about 3, 5 billion years ago) powerful, incredibly efficient Polypeptide-Nucleniic technology in that huge technological database - genes on DNA carrier through RNA input-output device is implemented in a polypeptide (protein) interface. Later, at the same time or in the process system appeared ...

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by RabbitPhilosopher
Wed Sep 04, 2013 7:27 pm
 
Forum: Evolution
Topic: Evolution or De-evolution?
Replies: 52
Views: 30607

Evolution or De-evolution?

... (about 3, 5 billion years ago) powerful, incredibly efficient Polypeptide-Nucleniic technology in that huge technological database - genes on DNA carrier through RNA input-output device is implemented in a polypeptide (protein) interface. Later, at the same time or in the process system appeared ...

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by LeoPol
Wed Aug 14, 2013 11:42 am
 
Forum: Evolution
Topic: Evolution or De-evolution?
Replies: 52
Views: 30607

Re: The general theory of origin of life

... and the origin are overlaping in some places, and doing "partial introduction" of new genetic material to the existing body of the carrier. Are needed tests, direct experiments, but I do not have access to modern laboratory (physical, chemical and biological). Therefore, I am forced ...

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by leniel
Mon May 06, 2013 7:55 pm
 
Forum: General Discussion
Topic: The general theory of origin of life
Replies: 13
Views: 10157

Pedigree Analysis

1. Cannot be x-linked recessive: in order to have an affected female progeny, you need to have heterozygous carrier mother AND father. That means that father would be affected too (single X chromosome). 2. Thus, it's an autosomal (see above) recessive (since neither parent affected, ...

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by Cat
Sun Apr 28, 2013 3:09 pm
 
Forum: Genetics
Topic: Pedigree Analysis
Replies: 1
Views: 2454

Pedigree Analysis

... than females are affected. 2. Affected sons are usually born to unaffected mothers; thus, the trait skips generations. 3. Approximately half of a carrier (heterozygous) mother’s sons are affected. 4. Never passed from father to son. 5. All daughters of affected fathers are carriers. Also I am ...

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by chapsticks4
Tue Feb 26, 2013 7:06 pm
 
Forum: Genetics
Topic: Pedigree Analysis
Replies: 1
Views: 2454
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