I think option c is right that is <span>The introduction of a new gene that can bind with the abnormal gene to inhibit its action.
Hope it helps .</span>
Answer:
B. more soldies who had lost a limb returned home
Answer: Uranium mining does not cause air pollution.
Explanation:
Answer:
Lymph nodes absorb excess fluid from blood
Explanation:
Lymph nodes are part of lymphatic system. Lymph nodes perform two main function; one is to enhance the immunity by producing immune cells, and other is to absorb excess fluid that is continuously leaking from blood vessels. this fluid includes water, protein and other substances too. Lymph nodes are rich source of immune cells too.
A signal cascade is a series of chemical reactions which are triggered by a stimulus acting on a receptor that is then transduced to the intracellular space through second messengers. Finally, effector molecules receive the signal causing a cellular reaction to the initial stimulus. A signal cascade is very useful because it facilitates and accelerates the communication between cells that could be in different parts of a living organism. This communication is vital for cell processes in complex multicellular organisms.
