Answer:
Because it was time for Henrietta to go for further screening.
Step-by-step explanation:
Skloot used the words “by chance” because she wants to carry her readers along and to make her readers to understand it was the perfect time for Henrietta to go to Johns Hopkins with her specific health problem so the proper diagnosis can be made and peradventure the bleeding and all her health issues will be solved. From the book She states that “By
chance, when Henrietta showed up at Hopkins complaining of abnormal bleeding, Jones and his
boss, Richard Wesley TeLinde, were involved in a heated nationwide debate over what qualified as cervical cancer and how best to treat it”. All these time, place, people,
and circumstance or collectively called variables came together “by chance” to propel or turn science in a new direction.