Definition noun A medical term used to refer to a condition or state in which a woman has never given birth to a child, or has never carried a pregnancy. Supplement Word origin: from Latin nūllus, none + parere, to give birth. Related forms: nulliparous (adjective). Compare: multiparity...
This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..
It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..
This tutorial describes the role of gibberellin family in plants. Find out the effects of gibberellin on plant growth an..
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..
The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..
