1. mother to fetus 2. through exposure to the antigen (virus, toxins, or cancer cells).
Answer:
<h3>MEE TOO I DONT UNDERSTAND THIS QUESTION!☡</h3>
Using the gas pedal analogy, the proto-oncogene would be an accelerator since they promote cell division and
deregulate apoptosis, while tumor suppressor would
be the brakes since they constrain the progress of the cell
cycle and induce cell apoptosis. An
oncogene is, therefore, when the accelerator
is stuck in down position and the brakes are not working.
Answer:
Explanation:
Inside a cell, numerous organelles function to remove wastes. One of the key organelles involved in digestion and waste removal is the lysosome. Lysosomes are organelles that contain digestive enzymes. They digest excess or worn out organelles, food particles, and engulfed viruses or bacteria.
One good reason would be that they could give someone, or many people who are in desperate need of a new organ, a second chance at life.