NEET Biology — Plant Growth and Development

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Which plant growth regulator is used to promote parthenocarpy in fruits like tomatoes?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Biology preparation, focusing specifically on the chapter Plant Growth and Development. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Regulator, Parthenocarpy, Tomatoes, Incorrect, Statement, and Regarding.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Which plant growth regulator is used to promote parthenocarpy in fruits like tomatoes?

A. Cytokinin
B. Gibberellin
C. Auxin
D. Ethylene

Q2. Select the incorrect statement regarding auxins:

A. Auxins promote root initiation.
B. Auxins inhibit lateral bud growth.
C. 2,4-D is a natural auxin.
D. IAA is a naturally occurring auxin.

Q3. Which statement about plant hormones is correct?

A. Ethylene inhibits fruit ripening.
B. Auxin promotes lateral bud growth.
C. Abscisic acid induces seed dormancy.
D. Gibberellins prevent seed germination.

Q4. Which of the following statements about auxin is incorrect?

A. Auxin promotes cell elongation.
B. Auxin promotes root initiation.
C. Auxin inhibits apical dominance.
D. Indole-3-acetic acid (IAA) is a natural auxin.

Q5. Which scientist discovered that gibberellins cause abnormal elongation of rice seedlings?

A. Charles Darwin
B. E. Kurosawa
C. F.W. Went
D. H.H. Cousins

+ 5 more questions in the actual test

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