Human Health and Disease — BIOLOGY STD 12 Science — Question

$1.$Formation of the chromosome theory of heredity

$2.$Experiments which proved that $DNA$ is the hereditary material

$3.$Mendel's laws of inheritance-discovery

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$(1)$ Radiography

$(2)$ $ELISA$ 

$(3)$ $CT-Scan$ 

$(4)$ $MRI$ 

$(5)$ $Widal$

$(a)$ High fertility rate

$(b)$ Rapidly rising mortality rate

$(c)$ Very young age distribution

$(d)$ Rapid population growth

$(e)$ Rapidly falling mortality rate

$(f)$ Very old age distribution