Which of the following is not a stem modification ?

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Q: 118 (SSC/NA)

Which of the following is not a stem modification ?

question_subject: 

Science

question_exam: 

SSC

stats: 

0,2,8,7,1,2,0

keywords: 

{'stem modification': [1, 0, 0, 0], 'potato': [4, 0, 1, 0], 'bulb': [3, 0, 1, 5], 'tuber': [2, 0, 0, 0], 'onion': [4, 0, 0, 0]}

The stem modifications mentioned in the options are bulb, corm, tuber, and tuber. A bulb is a type of stem modification found in onions, where the stem itself becomes fleshy and stores food. A corm is another type of stem modification found in arvi (a plant similar to taro), where the stem becomes swollen and stores food. Both a tuber of sweet potato and a tuber of potato are stem modifications where the stem becomes thickened and acts as a storage organ for food.

Therefore, the correct answer is option 3, as a tuber of sweet potato is indeed a stem modification, not a corm.

No alert is needed, as the provided answer is correct.