How Do You Spell WEISMANN GERM PLASM THEORY?

Pronunciation: [wˈa͡ɪsman d͡ʒˈɜːm plˈazəm θˈi͡əɹi] (IPA)

The Weismann germ plasm theory is a crucial concept in the science of genetics. The word "Weismann" is spelled as /ˈvaɪsmən/ in IPA phonetic transcription, which represents the correct pronunciation of the term. The theory states that only the germ cells, i.e., the reproductive cells, are responsible for transmitting genetic information from one generation to the next, while somatic cells, which make up the rest of the body, cannot. The Weismann germ plasm theory has influenced modern genetics and has applications in various fields, including medicine and agriculture.

WEISMANN GERM PLASM THEORY Meaning and Definition

1. The Weismann germ plasm theory, proposed by the German biologist August Weismann in the late 19th century, is a concept in the field of genetics that hypothesizes the distinct separation of germ cells and somatic cells in an organism. According to this theory, germ cells, such as eggs and sperm, are the only cells that carry genetic information and have the ability to pass on traits to the next generation. In contrast, somatic cells, which make up the body of an organism, do not contribute to the genetic inheritance.

   Weismann argued that genetic material in the germ cells remains unchanged throughout an individual's lifetime, while somatic cells undergo changes and are subject to environmental influence. He proposed that germ cells are isolated from the developmental processes in the body and are protected from the effects of somatic variations, which are not transmitted to future generations.

   This theory challenged the earlier ideas of the inheritance of acquired characteristics proposed by Jean-Baptiste Lamarck. Weismann's germ plasm theory laid the foundation for the understanding of the distinction between the germline and somatic cells, as well as the idea that genetic information is passed down only through the germ cells. It had a profound impact on the development of modern genetics and evolutionary biology.

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Plural form of WEISMANN GERM PLASM THEORY is WEISMANN GERM PLASM THEORIES