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Question
In tissue culture, callus can be induced to form shoot or root by altering the ratio of:
In tissue culture, callus can be induced to form shoot or root by altering the ratio of:
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Solution
The correct option is A Auxin to cytokinin
Tissue culture is a technique where the whole plant is regenerated using any part of the plant called explant. Explants grow into undifferentiated mass of cells called callus. A high ratio of cytokinin to auxin favours shoot formation, whereas, a high auxin to cytokinin ratio favours root formation. So, callus can be induced to form shoot or root by altering the ratio of auxin to cytokinin.
Gibberellins are used to increase the length of the axis of the plants.
Ethylene is mainly used for fruit ripening. Its other functions include promotion of senescence and abscission of various plant organs.
Tissue culture is a technique where the whole plant is regenerated using any part of the plant called explant. Explants grow into undifferentiated mass of cells called callus. A high ratio of cytokinin to auxin favours shoot formation, whereas, a high auxin to cytokinin ratio favours root formation. So, callus can be induced to form shoot or root by altering the ratio of auxin to cytokinin.
Gibberellins are used to increase the length of the axis of the plants.
Ethylene is mainly used for fruit ripening. Its other functions include promotion of senescence and abscission of various plant organs.
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