STD 12 - 8. microbes in human welfare — Biology STD 12 Science — Question

$(a)$ 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
 

$(i)$ Every gene contains the information to express a particular trait.

$(ii)$ Gene responsible for $\beta$ - thalassemia is present on $21^{st}$ pair of autosomal chromosome.

$(iii)$ Mendel's approach of using mathematics to explain biological phenomena was totally new and unacceptable to many of the biologists of his time.