Heterozygous tall plant (Tt) is crossed with homozygous dwarf (tt) plant. Percentage of dwarf plants from the cross would be _________.
0%
25%
50%
100%.
A
25%
B
50%
C
100%.
D
0%
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Solution
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A heterozygous
tall plant(Tt) is crossed with homozygous dwarf plant(tt). In the next
generation 50% of heterozygous tall plants and 50% of homozygous dwarf plants
are formed. It is called Test cross.
So,
the correct option is ‘50%’.
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