MCQ
A Across between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?
- ATT and Tt.
- BTt and Tt.
- CTT and TT.
- DTt and tt
In case of TT and Tt; all offspring would be tall (TT, Tt). In case of option ‘c’ no gene for dwarf is present, so all offspring will be tall. In case of option ‘d’ one of the parent plant is dwarf, so it is incorrect. In case of option ‘b’ most of the offspring will be tall and a few will be dwarf (TT, Tt, tt). Option ‘b’ is the correct answer.
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| List $- I$ | List $- II$ |
| $(a)$ Allen's Rule | $(i)$ Kangaroo rat |
| $(b)$ Physiological adaptation | $(ii)$ Desert lizard |
| $(c)$ Behavioural adaptation | $(iii)$ Marine fish at depth |
| $(d)$ Biochemical adaptation | $(iv)$ Polar seal |
Choose the correct answer from the options given below.
$(a) -(b)- (c)- (d)$