Jeron Iris

Genetics is the branch of biology that focuses on the study of heredity and the variation of inherited characteristics. It seeks to understand how traits are passed down from parents to offspring and how these traits are expressed in living organisms. At the core of genetics lies the concept of genes, which are segments of DNA (deoxyribonucleic acid) that contain the instructions for the development and functioning of organisms. These instructions guide the creation of proteins, which carry out the majority of biological functions necessary for life.

 

Each organism's genetic material is contained within its cells, and it is organized into structures called chromosomes. In humans, for example, there are 23 pairs of chromosomes, with one set inherited from each parent. Within these chromosomes are thousands of genes, each responsible for specific traits. These traits can range from eye color and blood type to more complex characteristics like susceptibility to certain diseases. While many traits are inherited in a predictable manner, some can be influenced by environmental factors or interactions between multiple genes.

 

The study of genetics dates back to the mid-1800s with the work of Gregor Mendel, who is often considered the father of modern genetics. Through his experiments with pea plants, Mendel established the basic principles of inheritance, including the ideas of dominant and recessive traits. His work laid the foundation for understanding how traits are inherited in predictable patterns, although the molecular mechanisms were not fully understood at the time.

Mary Glober

PFR LLC

Genetics: The Blueprint of Life, Genes, and Inheritance

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