Biologyhard · Past Paper
What is the ratio of offspring in a test cross of a heterozygous tall plant?
A3:1
B1:2:1
C1:1
D9:3:3:1
✓ Correct Answer: C — 1:1
Crossing $Tt$ with $tt$ results in 50% tall ($Tt$) and 50% dwarf ($tt$), which is a $1:1$ ratio.
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