Question

Type of development in roots- centrepetal or centrifugal

Answer 1

Hi the development of roots are of both type i.e. centripetal and centrifugal.

1. In EXARCH condition the development of protoxylem from the outermost edge of procambial cylinder. Development is from outside to inside. So it is Centripetal.

2. In Endarch condition the development of protoxylem from the innermost procambial cells adjacent to pith. Development is inward to outward. Hence, protoxylem is found inside to metaxylem . This is considered to be centrifugal.

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