The National Biodiversity Authority (NBA) plays a crucial role in safeguarding India's biological resources. Statement 1 is correct as a primary function of the NBA is to prevent biopiracy and protect the country's unique genetic resources and traditional knowledge associated with them. Statement 3 is also correct because access to biological resources and the benefit sharing arising from their use, including intellectual property rights, are regulated by the NBA, requiring its approval for such applications. Statement 2 is incorrect because while the NBA is involved in regulating access and benefit sharing, it does not directly monitor or supervise the scientific research on genetic modification of crop plants; this falls under the purview of other regulatory bodies.