APFIVE Chi-Square Analysis of a Test Cross
In a test cross of a heterozygous plant ($$Tt$$) with a homozygous recessive plant ($$tt$$), 80 offspring were produced with 42 tall and 38 short individuals. Using a chi-square test, what is the approximate chi-square value for this data?
TABLE:
| Phenotype | Observed | Expected |
|---|---|---|
| Tall | 42 | 40 |
| Short | 38 | 40 |
This table presents the observed and expected numbers of offspring from a test cross.
A
1.0
B
0.2
C
2.0
D
0.5
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