Question

The concept totipotency means that

• A. Every living plant cell should be able to regenerate a whole plant
• B. Plants can communicate among one another
• C. Every plant feels pain
• D. Any plant is potent enough to grow In the vicinity of other plants

Answer 1

The correct option is A Every living plant cell should be able to regenerate a whole plant

Totipotency is defined as the ability of a single cell to divide and produce all the differentiated cells in an organism, including extraembryonic tissues. Totipotent cells formed during sexual and asexual reproduction include spores and zygotes. In some organisms, cells can dedifferentiate and regain totipotency. For example, a plant cutting or callus can be used to grow an entire plant. Mammalian development commences when an oocyte is fertilized by a sperm forming a single celled embryo, the zygote. Consistent with the definition, the zygote is totipotent, meaning that this single cell has the potential to develop into an embryo with all the specialized cells that make up a living being, as well as into the placental support structure necessary for fetal development. Thus, each totipotent cell is a self-contained entity that can give rise to the whole organism.

So the correct option is 'every living plant cell should be able to regenerate a whole plant'.