Grades in introductory physics courses, such as mechanics and electromagnetism, can raise concerns for graduate school applications, particularly if they include B's and D's. However, many applicants have successfully gained admission despite lower grades in early courses, especially if their performance improves in advanced classes like quantum mechanics and statistical mechanics. Admissions committees often prioritize grades from the last 60 credits and advanced coursework over earlier grades. For students concerned about their GPA, particularly those with a 3.00 average, it is noted that strong performance in upper-level courses can mitigate initial struggles. Overall, while early grades may impact perceptions, they are not the sole factor in graduate admissions, and applicants are encouraged to focus on their later academic achievements.