Medullary Sheath

Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..

Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..

Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics – Definition: Heredity and ..

It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..

Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..

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