What genetic notation represents a healthy individual in autosomal recessive disorders?
Understand the Problem
The question is asking about the genetic notation used to indicate a healthy individual in the context of autosomal recessive disorders. This involves understanding how genotypes are represented in genetic terms, specifically referring to alleles associated with disease and health in autosomal recessive inheritance.
Answer
'RR' (homozygous normal)
The genetic notation representing a healthy individual in autosomal recessive disorders is 'RR' (homozygous normal).
Answer for screen readers
The genetic notation representing a healthy individual in autosomal recessive disorders is 'RR' (homozygous normal).
More Information
In autosomal recessive disorders, 'RR' indicates a healthy individual, possessing two normal alleles. This notation suggests the absence of the recessive disorder.
Tips
A common mistake is confusing the notation for carriers ('Rr') with healthy individuals ('RR'). Carriers have one abnormal gene but do not generally express the disorder.
Sources
- AUTOSOMAL RECESSIVE INHERITANCE - genetics.edu.au
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