1. ELISA test is employed as the first and most basic test for an individual to detect cancer.
2. Almost 50 per cent of human beings have Rh+ blood while the remaining have Rh- blood.
Which of the statements given above is / are correct?
Explanation
Enzyme-linked immunosorbent assay (ELISA) is a laboratory technique that detects and measures the amount of specific substances in a solution.
Statement 1 is incorrect: The ELISA (Enzyme-Linked Immunosorbent Assay) test is primarily used to detect the presence of antibodies or antigens in the blood, and it is widely employed for diagnosing infections such as HIV, rather than cancer. It is not the first or basic test for cancer detection. Cancer is typically diagnosed using imaging techniques (e.g., MRI, CT scans), biopsies, or specific blood marker tests.
Statement 2 is incorrect: The Rh factor, also known as the Rhesus factor, is a protein that can be present on the surface of red blood cells. Individuals with this protein are classified as Rh-positive (Rh+), while those without it are Rh-negative (Rh-). Globally, the distribution of Rh factor is not evenly split. Approximately 94% of the world’s population is Rh-positive, and only about 6% is Rh-negative. This distribution varies among different populations and regions.