Drag and drop the appropriate answer:
  
Answer variants:
True
Euploidy
Trisomy
 
1. A condition in which an individual has more than the usual amount of diploid (2n) chromosomes is called  -
2. The gain of one chromosome is referred to as -
3. Mental retardation, delayed development, behavioural issues, weak muscular tone, visual and hearing impairment are the symptoms of Down's syndrome. State true or false. -