Question

After a dihybrid test cross, phenotypes of 1000 offspring were recorded. The following
table reveals the observed and expected numbers for each phenotype.
Phenotype maroon petals
sterile anthers
maroon petals
fertile anthers
purple petals
sterile anthers
purple petals
fertile anthers
Observed
415
80
70
435
Expected
250
250
250
250
A chi-squared (x2) test was performed and the probability of the difference between the
observed and expected results being due to chance was found to be <0.001.
Which of the following is TRUE for the conclusions to be drawn from the test?
1. The diffrence is because of some random factor like linked genes.
2. The diffrence is not due to chance.
3. The diffrence is due to chance.
4. The diffrence is significant.​

Answer 1

4.The difference is significant.

Answer 2

Answer:

the difference is significant