MEK is a dual-specificity protein kinase

phosphorylates its target proteins on both tyrosine and serine/threonine

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Sclerenchyma cells

Intercellular Space absen

The secondary cell wall, produced after cell elongation has ceased, is thick and contains large amounts of lignin

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Xylem, Phloem and cambium form the major part of the vascular bundle found in stelar part.

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Epidermis ;

Consist of single layered, tightly placed, thin walled, uncutinised cells called as Epiblema or Rhizodermis.

Epiblema in younger roots bears Unicellular root hairs and is also called Pilliferous layer

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Cortex ;

Consist of thin walled parenchymatous cells with intercellular spaces. Innermost layer of cortex is known as Endodermis

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Vascular bundles

Radial and Exarch

Center of monocot root is occupied by Parenchymatous cells called Pith