Q21 of 30 Page 1

Scientists have succeeded in recovering healthy sugarcane plants from a diseased one.

(a) Name the part of the plant used as explant by the scientists.


(b) Describe the procedure the scientists followed to recover the healthy plants.


(c) Name the technology used for crop improvement.


a) The part of the plant used as explants by the scientist is the stem or the meristem.

b) The explants or the virus free meristem is used and is cultured in a nutrient medium which leads to formation of an undifferentiated cell mass called the Callus which is then transferred to a medium containing plant growth hormones which leads to further growth of the callus.


c) The technology used for the crop improvement is issue culture or micrpropagation in which the explants is grown in nutrient medium.


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