Many plants such as orchids are grown by technique called tissue culture. small pieces of plant tissue from a left, stem, or roots of a mature plants are placed in a medium that contains the proper nutrients. the cells first form a mass of undifferentiated cells, from which tiny roots, stems, and leaves eventually grow. how do the plant cells placed in a medium for tissue culture change in terms of their degree of specialization? what types of animal cells are most similar to the undifferentiated plant cells in a tissue culture?

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

Apuppy’s tendency to chew is inherited through which of the following? a. through learned behavior b.through genes c. through seasonal cycles d. through hibernation

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.