Item 2 The following figure shows the results of Mendels tes

Item 2 The following figure shows the results of Mendel\'s test-cross analysis of independent assortment. In this experiment, he first crossed pure-breeding round, yellow plants to pure-breeding wrinkled, green plants. The round yellow F1 are crossed to pure-breeding wrinkled, green plants. RAGG Cross-fertilization Heterozygous Pure RrGg rr99 Cross-fertilization Frequency among Mendels 207 plants: rg Expected observed round 0.25 55 (0.266) yellow round 0.25 51 (0.246 rG rrGg wrinkled 0.25 49 (0.237) yellow wrinkled 0.25 52 (0.25 green .00 207 (1.000

Solution

In this experiment shown, for independent assortment using a test cross, 4 Independent coordinates can be formed, or we can say that four independent characteristics can be observed.

In such case, n=4

Degree of freedom = n-1

Here, n= 4

so degree of freedom will be, =4-1 =3