One allele can only produce one trait
One of the visible feature is that the DNA in a cell is replicating then the most important is that they are splitting of getting divided and form into two identical cells.
Speed is an expression of how fast an object moves. An object's speed is the rate of the total distance it travels in a certain amount of time. Units of speed include miles per hour (mph), centimeters per second (cm/sec or cm/s), meters per second (m/sec or m/s), or kilometers per hour (kph or km/hr)
Vestigial structures are parts of an animal's body that serve no function, but did in earlier evolutionary stages. Two examples of this are the human appendix and the snake pelvic bone.
Answer: the original resting ion concentrations