What is the null hypothesis?

When counting seeds, Gregor noticed that some of them were wrinkled and some round. He wanted to know if the number of wrinkled seeds he found was unusual. After doing a little research he found that 26% of pea seeds are expected to be wrinkled normally. Out of the 60 seeds he grew, he found 12 wrinkled ones. State the Null Hypothesis Format V BIU