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Q.

Statement I: The red blood cells in mammals and phloem sieve tubes in plants do not have nucleus in them.

Statement II: These cells do not have nucleus at any stage of their life.

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a

Statement I is correct, II is incorrect

b

Statement I is incorrect, II is correct

c

Both Statements I & II are correct

d

Both Statements I & II are incorrect

answer is A.

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Detailed Solution

  • The common characteristic feature of plant sieve tube and mammalian erythrocyte is the absence of nucleus. 
  • Sieve tubes are the components of phloem and do not contain nucleus.
  • Erythrocytes in mammalian cell also do not contain nucleus.
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