Per NCERT Activity 3.1, if you cut the root tips of an onion in Jar B, what happens to root growth — compared to Jar A (uncut)?
ARoots in Jar B STOP growing after the tips are cut; Jar A continues to grow — proving roots grow from their tips
BBoth grow at the same rate
CJar B grows faster
DBoth stop growing
Answer & Solution
Correct answer: A. Roots in Jar B STOP growing after the tips are cut; Jar A continues to grow — proving roots grow from their tips
Per NCERT Activity 3.1, cutting tips removes the apical meristem so growth halts. Confirms tips contain the dividing cells.
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