This page describes the polymerase chain reaction (PCR), a rapid DNA cloning method that involves synthesizing primers, heat-induced strand separation, and polymerization with heat-stable DNA polymera...This page describes the polymerase chain reaction (PCR), a rapid DNA cloning method that involves synthesizing primers, heat-induced strand separation, and polymerization with heat-stable DNA polymerase. Each cycle doubles the DNA amount, enabling exponential amplification, which can produce billions of copies quickly through automation. PCR is effective for analyzing limited DNA samples but is sensitive to contamination.
This page discusses hemoglobin types, emphasizing Hemoglobin A (HbA) as common in adults and Hemoglobin S (HbS) as the cause of sickle-cell disease, particularly in malaria regions of Africa and Asia....This page discusses hemoglobin types, emphasizing Hemoglobin A (HbA) as common in adults and Hemoglobin S (HbS) as the cause of sickle-cell disease, particularly in malaria regions of Africa and Asia. It explains that sickle-cell anemia arises from inheriting the βS gene from both parents, while individuals with one βS and one βA gene have some malaria resistance.
