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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Main Factors that Affect Clinical Consequence of Toxicity

... absorption, because nonpolar or lipid-soluble substances tend to be more readily absorbed than polar or ionized substances. The vehicle or carrier of the toxic compound also affects its availability for absorption. Adjuvants are formulation factors used to alter the toxicologic effect of ...

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by 2444256703
Thu Jan 29, 2015 7:30 am
 
Forum: Molecular Biology
Topic: Main Factors that Affect Clinical Consequence of Toxicity
Replies: 0
Views: 303

Re: Biology video presentations and powerpoint slides.

Remember that there are types of carrier molecules and thats why they ge different substances across the cell.!!!!!!!!!!

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by jilan
Mon Jan 12, 2015 6:24 am
 
Forum: Biology Movies
Topic: Biology video presentations and powerpoint slides.
Replies: 7
Views: 16716

Re: Na+ & K+ ion transport through structural protein in a c

Remember that there are types of carrier molecules and thats why they ge different substances across the cell.!!!!!!!!!!

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by jaleebi22
Tue Jan 06, 2015 9:41 am
 
Forum: Cell Biology
Topic: Na+ & K+ ion transport through structural protein in a c
Replies: 3
Views: 4757

translation from DNA

... It could be that in the RNA world the proteins were translated directly from the RNA (as nowadays) but when DNA started to work as information carrier, there would have to be too big changes in the ribosome and everything so it couldn't be possible but rather the transcription system evolved ...

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by JackBean
Tue Sep 30, 2014 8:16 am
 
Forum: Molecular Biology
Topic: translation from DNA
Replies: 4
Views: 5390

Question about hair color and tallness inheritance

... ginger hair. My mother has very dark brown hair and my sister has the very dark brown hair, i have a normal brown hair. My question is, am i a carrier of the ginger hair gene? Since my father has two children with ginger hair from an other relationship, then he must carry the ginger gene, so ...

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by hitom
Thu Aug 07, 2014 9:58 pm
 
Forum: Genetics
Topic: Question about hair color and tallness inheritance
Replies: 0
Views: 1948
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