MCQ
When both partners$/$components are affected negatively, the nature of interaction is:
- ACommensalism
- BPredation
- ✓Competition
- DAmensalism
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$I.$ Haemophilia is a sex-linked recessive disease
$II.$ Down's syndrome is due to aneuploidy
$III.$ Phenylketonuria is an autosomal dominant gene disorder
$IV.$ Phenylketonuria is an autosomal recessive gene disorder
$V.$ Sickle cell anaemia is an $X$-linked recessive gene disorder