The Discovery of PGRs

  1. Four discovery were accidental one was with a planned experiment
  2. Three discovery were accidental Two were with a planned experiment
  3. Two discovery were accidental Three were with a planned experiment
  4. All five we're accidental
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Phototropism is firstly studied by

  1. Charles Darwin and his son Francis Darwin
  2. Charles Darwin and his friend Francis Darwin
  3. Charles Darwin and his brother Francis Darwin
  4. Charles Darwin and his colleague Francis Darwin
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


……...is the site of transmittable influence that caused the bending of the entire……..

  1. Coleorrhiza
  2. Coleoptile
  3. Auxin
  4. Scutellum
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Auxin was isolated by

  1. F. W. Went
  2. Charles Darwin
  3. Francis Darwin
  4. F. Skoog
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Find the wrong match.

  1. F. W. Went - Oat seedlings
  2. Charles Darwin - Canary Grass
  3. Francis Darwin - Canary Grass
  4. E. Kurosawa- Orange
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


This picture suggests that

  1. Tip of the coleorrhiza is the source of Auxin
  2. Tip of coleoptile is the source of Auxin
  3. Base of coleoptile is the source of Auxin
  4. Base of coleorrhiza is the source of Auxin
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Here arrows indicate

  1. Source of Auxin
  2. Direction of bending
  3. Direction of light
  4. Direction of cap removal
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Foolish Seedling-

Find the odd one.

  1. Bakane
  2. Disease of Rice seedlings
  3. Caused by viral pathogen
  4. Gibberella fujikuroi
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


E. Kurosawa
1. Reported the appearance of symptoms of the disease in rice seedlings
2. In 1926
3. Used sterile filtrates of the fungus
4. All of these

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Internodal segments of tobacco stems, the callus is actually

  1. An undifferentiated cell
  2. A mass of differentiated cell
  3. A mass of undifferentiated cell
  4. A differentiated cell
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level: