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.
Answer:
I could not submit the answer. Please see the attached image for the answer
<span>An asteroid is a celestial body - composed of rock, metal or a mixture of both - that is orbiting the Sun. Most of them are in the asteroid belt between Mars and Jupiter. Even though there are millions of asteroids with sizes up to more than 500 km, they are of no danger to the planet Earth.</span>
Answer:
Human insulin protein will not be produced
Explanation:
For production of human insulin protein in bacteria, first the insulin gene needs to be transcribed to corresponding mRNA. This mRNA will be then translated to produce insulin protein. The initial portion of any gene has a promoter sequence. During transcription RNA Polymerase recognizes this promoter sequence to initiate the process.
Here, the gene's first five nucleotides were accidentally cut out so now the promoter sequence has been altered. RNA Polymerase will not be able to recognise it so transcription will not occur. No mRNA will be formed and as a result translation will also not occur and there will be no production of insulin protein.
