Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2026BiologyChapterActual

Given below are two statements: Statement I : The synthetic auxin 2,4-D is widely used to prepare weed-free lawns by selectively killing mature monocotyledonous weeds. Statement II : Auxins control xylem differentiation and help in cell division. In the light of the above statements, choose the most appropriate answer from the options given below:

Options

  1. ABoth Statement I and Statement II are incorrect
  2. BBoth Statement I and Statement II are correct
  3. CStatement I is incorrect but Statement II is correct
  4. DStatement I is correct but Statement II is incorrect

Correct answer

C. Statement I is incorrect but Statement II is correct

Step-by-step solution

Statement I is incorrect because the synthetic auxin 2,4-D is widely used to kill dicotyledonous weeds, not monocotyledonous weeds. It does not affect mature monocotyledonous plants and is used by gardeners to prepare weed-free lawns. Statement II is correct as auxins are known to control xylem differentiation and help in cell division. Therefore, Statement I is incorrect but Statement II is correct. Answer: Statement I is incorrect but Statement II is correct

Practice Chapter on Quantrex Academy →

More from Chapter

Consider the following three biomolecules: X: Uridine Y: Cytidylic acid Z: Guanine Choose the option that correctly categorizes X, Y, and Z. 2026The complete, catalytically active enzyme together with its bound non-protein constituent is known as: 2026During a laboratory experiment, a student accidentally boils a sample of salivary amylase before adding it to a starch solution. Which of the following best explains the most likel 2026During a biological survey, a researcher discovers a new organism. To classify it properly, she examines its external and internal structure, cellular organization, developmental p 2026Given below are the stages in the sexual reproduction of higher fungi. Arrange the following stages in the correct sequence. A. Fusion of parental nuclei (Karyogamy) B. Meiosis in 2026Read the given statements regarding the general characteristics of bryophytes and select the incorrect statement. 2026Arrange the following male reproductive structures of gymnosperms in descending order of their physical hierarchy (macroscopic to microscopic). A. Microsporangium B. Microspore C. 2026Which of the following sets of plants is correctly paired with the nature of its dominant plant body and the status of its vascular tissues? 2026 Full Chapter list All NEET PYQs