Question

________________________ cultures can be maintained for a prolonged period of time by repeated sub-culturing.

• A. Ovary
• B. Protoplast
• C. Callus
• D. Mass cell

Hint:

Make sure to note that plant tissue culture uses callus for long term experiments, and other structures like protoplast for short term experiments.

Answer 1

The Correct Option is C

Callus Cultures: Callus, an undifferentiated plant cell mass, is utilized in vitro for extended periods via sub-culturing, enabling indefinite growth for tissue engineering. Ovary: The ovary, a reproductive plant part containing ovules, is not typically employed in long-term in vitro cultures. Protoplast: Protoplasts, plant cells lacking cell walls, are instrumental in genetic engineering and transformation, primarily for short-term experiments. Mass Cell: The designation 'Mass Cell' is irrelevant to plant cell culture.