ANGIOSPERMS
\ˈaŋɡɪˌɒspɜːmz], \ˈaŋɡɪˌɒspɜːmz], \ˈa_ŋ_ɡ_ɪ__ˌɒ_s_p_ɜː_m_z]\
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Any member of the more than 250,000 species of flowering plants (division Magnoliophyta) having roots, stems, leaves, and well-developed conductive tissues (xylem and phloem). Angiosperms are often differentiated from gymnosperms by their production of seeds within a closed chamber (the ovary). The Magnoliophyta division is composed of two classes, the monocotyledons (Liliopsida) and dicotyledons (Magnoliopsida).
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Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.