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19. A. What hormone induces lateral root formation? B. From what tissue does a lateral root emerge? 20. If one added an inhib
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19) A.  Auxin induces lateral root formation.

B. Lateral roots emerge from a subset of pericycle cells situated in front of the xylem poles.

20) NO

21) a- short meristem

d- micropylar endosperm

22) The rate of root formation will increase

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