A plant cell placed into an isotonic solution . An animal cell placed into an isotonic solution . ANSWER becomes flaccid; shrivels remains turgid; bursts remains turgid; shrivels neither swells nor shrivels; neither swells nor shrivels becomes flaccid; neither swells nor shrivels

Facilitates growth and change in neurons and the migration of neurons to different sites in the brain

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

4. multiple crosses were made between true-breeding lines of black and yellow labrador retrievers. all the f1 progeny were black. when these progeny were intercrossed, they produced an f2 consisting of 91 black, 39 yellow and 30 chocolate. a. propose an explanation for the inheritance of coat color in labradors. b. propose a biochemical pathway for coat color determination and indicate how the relevant genes control coat coloration.