There is two kind of photo response

1. Red/Far-red 

2. Blue Light

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Apical meristem

Some cells ‘left behind’ from shoot apical meristem, constitute the axillary bud.

Such buds are present in the axils of leaves and are capable of forming a branch or a flower

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Shoot apical meristem

shoot apical  meristem, a dome-shaped  mass of dividing cells at the shoot tip

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Root Apical meristem

root  apical  meristem is a  thimble-like  root  cap,  which  protects  the  delicate  apical  meristem  as  the root  pushes  through  the  abrasive  soil

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Root apical meristem

root  cap  secretes  a  polysaccharide  slime  that  lubricates  the  soil  around  the  tip  of  the  root

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Root apical meristem

Growth  occurs  just  behind  the  tip  in  three  overlapping  zones  of  cells at  successive  stages of  primary  growth.  These  are  the  zones  of  cell  division,  elongation, and differentiation

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Intercalary meristem

meristem which occurs between mature tissues is known as intercalary meristem