MCQ
Which one from those given below is the period.
- A1856 - 1863.
- B1840 - 1850.
- C1857 - 1869.
- D1870 - 1877.
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$(i)$ 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.