If the observed values are very different from the expected values, what could be the reasons?
Genetic test was wrong or there is an unknown factor affecting the inheritance of alleles.
What is a null hypothesis?
There is no significant difference between observed and expected values.
What is an alternative hypothesis?
There is a significant difference between the actual and expected results of the genetic cross.
When is the null hypothesis accepted?
When the calculated value is less than the 5% significance value on the table.
When is the alternative hypothesis accepted?
When the calculated value is higher than the table value at 5% significance.