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190 grains of Jowar from single plant when sown produce 140 tall and 50 dwarf plants. The genotypes of these offsprings may be(A) TT, tt(B) TT, Tt(C) Tt, Tt(D) TT, Tt, tt |
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Answer» (D) TT, Tt, tt The phenotypes obtained from growing 190 grains of Jowar are 140 tall and 50 dwarf. This approximately equal to 3 : 1 ratio. Hence, this will be F2 generation and there will be 3 genotypes and two phenotypes. The genotypes will be homozygous tall, heterozygous tall and homozygous dwarf, i.e. TT, Tt, tt respectively. |
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