The degrees of freedom are equal to n – 1, where n is the number of different expected Please choose the correct answer from the following choices, and then select the submit answer button. Answer choices phenotypes. genotypes. heterozygotes. alleles. homozygotes.

Chi-square distribution is affected by the total number of independent categories present in an experiment. An increased number of total categories also increases the chi-square value. The total number of independent categories possible in the given experiment represents its "degree of freedom".

For example, a cross between two heterozygous tall pea plants gives a progeny of 1000 plants out of which 700 are the tall plants. And the total number of short plants would be 1000-700= 300.

Here, "tall plants" is an independent category while the number of "short plants" depends on the total number of tall plants.

Hence, the degree of freedom is calculated by following formula= "n-1". Here, "n" represents the total number of different categories, the phenotypes (tall and short plants are two possible phenotypes in the given example).