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Erwin Chargaff discovered that in DNA, the amount of adenine equals thymine and the amount of guanine equals cytosine.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Search for Genetic Material and RNA World
E. Kurosawa discovered that gibberellins from the fungus *Gibberella fujikuroi* caused abnormal elongation in rice seedlings.
Ref: NCERT Class 11 Biology Chapter 13: Plant Growth and Development Plant Growth Regulators - Auxins and Gibberellins
Jan Ingenhousz demonstrated that green plants release oxygen in the presence of sunlight.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Significance and Bacterial Photosynthesis
Joseph Priestley’s experiments with a bell jar, a burning candle, and a mint plant showed that plants restore oxygen in the air.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
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