HomeKROK Question Archive
Exam questionKROK 1Medicine ยท 2017

Cystinuria manifests itself in a human as cystine stones in the kidneys (homozygous individuals) or increased cystine content in the urine (heterozygous individuals). Cystinuria is a monogenic disorder. Determine the type of interaction between the genes of cystinuria and normal urine cystine excretion:

Answer options

  1. Complete dominance
  2. Complementarity
  3. Codominance
  4. Semidominance
  5. Epistasis
Correct answer

Semidominance

Explanation

Semi dominance is a form of intermediate inheritance in which one allele for a specific trait is not completely expressed over its paired allele.

This educational archive is provided by KROKEXAM and is not an official testing authority publication.