Q1. Which of the following is not correct? (a) Robert Brown discovered the cell (b) Schleiden and Schwann formulated the cell theory (c) Virchow explained that cells are formed from pre-existing cells (d) A unicellular organism carries out its life activities within a single cell Solution: (a) It was not Robert Brown who discovered the […]
Cell: The Unit of Life Read More »
What is immunity? Immunology is like a colorful puzzle piece in the big picture of biology. It’s like a key that helps us unlock the secrets of living things. Now, if you’re thinking, “What’s all this talk about immunity?” don’t worry! Imagine it as your body’s superpower to protect itself. But before we jump
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Introduction Pedigree analysis is crucial for genetic studies. However, it is essential to learn what is pedigree analysis and how the trait is transferred from one generation to the next generation. Students often attempt to solve pedigrees analysis by merely observing them, but this is not the proper way to analyze pedigrees. It is always
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Autosomal Genetic Disorder: Edward Syndrome It is an autosomal genetic disorder caused due to the trisomy of 18th chromosome. This genetic abnormality disrupts normal development and leads to a variety of serious health issues, including intellectual disabilities and physical abnormalities. The syndrome was first described by geneticist John H. Edwards in 1960, after whom it
Introduction One of the beautiful creations of God is the human body. Every human being looks different in terms of colors, shapes, and sizes. The genome of every human being is also 99.99 percent similar. However, a mere 0.01 percent difference makes every individual unique from others. At the DNA level, some genetic variations are
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Introduction Get ready, fellow students, because the species-area relationship is an absolutely fascinating concept in ecology! Let’s dive into this captivating topic together. This relationship was introduced by the eminent scientist Alexander Von Humboldt, who embarked on an adventurous journey exploring the wondrous South American jungles. Now, what’s the deal with this species area relationship?
The Species-area Relationship, Definition, Curve and Importance Read More »
Introduction to Phylum Porifera This is the first phylum of the animal kingdom. The word porifera means “Pore Bearers.” Due to the presence of pores on the sponge, it appears like sponge and thus called sponges. Some of the key features of Porifera are as follows: Habit and Habitat of Phylum Porifera Body Structure of
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Introduction to Human Health and Disease Human Health and Disease: In general, we define health as the absence of disease. In other words, if a person is not ill, he is healthy. The irony is that one cannot define health without giving the reference of a disease and vice versa. Therefore, we cannot define merely
Human Health and Diseases Basics Read More »
Introduction to Cancer Uncontrolled cell division in the body leads to the formation of tumor. However, there are two kinds of tumor, the first type is benign tumor and the second type is malignant tumor. Only malignant tumor is associated with cancer. It is important to understand the basic difference between banign and malignant tumor.
Human Health and Disease: Cancer Read More »
Introduction to Animal Kingdom The animal kingdom is an amazing tapestry of life forms ranging from microscopic organisms to colossal giants that swim in the oceans, roam the land and soar through the skies. To comprehend this vast assortment of animals, scientists have devised a system called classification. It is a process of organizing and
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