Question

Regarding assertion and reason, choose the correct option.
Assertion [A]: Small plant tissues can regenerate whole plants in-vitro
Reason [R]: Plant cells are totipotent

• A. Both A and R are true and R explains A
• B. Both A and R are true but R does not explain A
• C. A is true and R is false
• D. Both A and R are false

Answer 1

The correct option is A Both A and R are true and R explains A

Totipotency is the ability of a single cell to divide and produce all of the differentiated cells in an organism. All plant cells, including some fully differentiated types, under the right conditions, are capable of giving rise to an entire new plant in-vitro. This ability of totipotency, helps in vitro regeneration of plantlets from any fragment of plant tissue.