MCQ
Joint Forest Management Concept was introduced in India during.
- A1980s
- B1990s
- C1970s
- D1960s
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Reason : Distinctive morphological characters are displayed due to reproductive isolation.
$(1)$ Haemophilia is a sexlinked recessive disease.
$(2)$ Down’s syndrome is due to aneuploidy.
$(3)$ Phenylketonuria is an autosomal recessive gene disorder.
$(4)$ Sickle cell anaemia is an $X$-linked recessive gene disorder.
$I$. Abiotic agencies
$II$. Biotic agencies
$III$. Insects only
Select the correct option for the given question