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:

Answer options

1. Aneuploidy
2. Polyploidy
3. Combinative variability
4. Chromosomal mutation
5. Modification variability

Explanation

Non-hereditary(phenotype) variability-these are variabilities that can not be inherited. They are caused by special conditions and the environment. They are also called modifications.