Category: Biology

Genetics: The Beginning of Genetics

| February 24, 2010 | 0 Comments

  Genetics defined as the science of heredity.  Heredity is the transmission of traits from parents to offspring.

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Cell: What are Cancer Cells?

| February 10, 2010 | 0 Comments

Cancer cells differ from normal cells in three aspects: 1.      abnormal nuclei 2.      lack of differentiation, and 3.      abnormal cell division Cancer cells have enlarged nuclei, which means that there may be an abnormal number of chromosomes.  The chromosomes exhibit mutant characteristics such as deletion or duplication of some parts.  Extra copies of genes may [...]

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Cell : Meiosis and Gametogenesis

| February 10, 2010 | 0 Comments

Sexual reproduction starts in the formation of gametes.  The process that leads to the formation of gametes is known as meiosis.  These gametes join in the process of fertilization and a new individual is formed.  What is the importance of meiosis?  Imagine! If the gametes had the diploid chromosome number, this would double during fertilization.  [...]

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Cell: The Cell Reproduction

| February 8, 2010 | 0 Comments

The Cell Cycle Cells go through cell cycle as they grow and divide.  Before the cell divides, it spends most of its life in a period of growth and development called interphase.  Some cells, such as neurons and muscle cells are always in the interphase stage.  These are the cells that no longer divide.  Interphase [...]

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Taxonomy: Kingdom Plantae

| February 4, 2010 | 0 Comments

There are more than 250,000 species of plants on Earth.  Plants play a role in the survival of most organisms including humans. Characteristics of Plants Plants are eukaryotic multicellular organisms that have adapted succefully to life on land.  They are found in nearly every environment on Earth, including the most extreme conditions of the deserts [...]

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