KROK 1 2014 – Question 120 · KROK (Medicine) · Biology

A female suffered rubella during pregnancy. The child was born with developmental abnormalities, namely cleft lip and palate. The child’s genotype is normal. These malformations are a manifestation of:

  1. A. Combinative variability
  2. B. Polyploidy
  3. C. Modification variability
  4. D. Aneuploidy
  5. E. Chromosomal mutation
Hint

Note that the genotype is normal; think about what kind of factor, acting during development, can change the phenotype without altering the genetic material.

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