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Gene technology uses specific 'tools' like enzymes and vectors to manipulate DNA. Restriction enzymes cut DNA at precise points, and ligase sticks it back together. Plasmids and vi…

Recombinant DNA technology lets us combine DNA from different sources to create new genetic instructions. We do this by cutting DNA with enzymes, inserting a gene into a carrier (v…

…ism's genetic blueprint. This technology has revolutionised biology, medicine, and our understanding of life. Think of a genome as the complete instruction manual for building and…

Gene therapy involves introducing healthy genes into a person's cells to treat or prevent disease. It typically uses vectors, like modified viruses, to deliver the new genetic mate…

Gene technology offers incredible potential but raises tough questions about what's right, fair, and affordable. We'll look at the tricky ethical dilemmas, how it can change societ…

…of disease. It's shaped by a complex interplay of internal biology, external environment, and personal choices. Understanding these factors helps you promote and maintain your own…

AIDS is a chronic, potentially life-threatening condition caused by HIV, which damages your immune system. Cancer is a disease where abnormal cells divide uncontrollably and can in…

Infectious diseases are caused by pathogens invading your body, leading to symptoms as your body fights back. Bacteria are single-celled organisms that can cause disease through to…

Microbes, tiny living things, aren't just bad guys; many are incredibly useful, playing key roles in making food, treating wastewater, producing medicines, and helping agriculture.…

Your body has an amazing defense system, called immunity, that protects you from harmful invaders like bacteria and viruses. It works in two main ways: innate immunity, which is yo…

…health across many body systems. Understanding addiction's biological and psychological roots is crucial for prevention and effective treatment. Think of substance abuse as a hija…

You're about to tackle an exam on rates, ratios, and proportions, so let's review the fundamental concepts and how they connect. Understanding these building blocks will help you c…

পাকতন্ত্র হলো সেই অঙ্গ-প্রত্যঙ্গের সমষ্টি যা খাদ্য হজম করে পুষ্টি শোষণ করে এবং বর্জ্য নিষ্কাশন করে। এটি একটি দীর্ঘ নলের মতো, যা মুখ থেকে শুরু হয়ে পায়ুপথে শেষ হয়। হজম প্রক্রিয়া যান্…

Living things share seven key characteristics, making them different from non-living things. Scientists group organisms into a hierarchy based on their shared features to understan…

Cells are the basic building blocks of all living things, performing all life functions. They come in two main types, prokaryotic and eukaryotic, each with distinct internal struct…

Biological molecules are essential chemicals in living things, including carbohydrates, lipids, proteins, and nucleic acids, each with specific roles. Enzymes are biological cataly…

The carbon cycle describes how carbon moves between Earth's atmosphere, oceans, land, and living things. It's a closed system, meaning carbon is recycled, not created or destroyed.…

Biology is the scientific study of life, exploring its diverse forms, complex processes, and interactions. You'll learn about the characteristics that define living things and the…

Your circulatory system is like your body's highway network, moving essential substances to every cell and taking waste away. It's a closed loop, meaning the same blood constantly…

The human heart is a muscular pump divided into four chambers that circulates blood throughout your body. It works in two main circuits: the pulmonary circuit for oxygenation and t…