Answer:
A. The specific functional role of an organism
Explanation:
A habitat is the general place where an organism lives and a niche is the range of physical and biological conditions in which a species lives and the way the species obtain what it needs to survive and reproduce.
Answer:
C) determine the nucleotide sequence for the improved enzyme.
Explanation:
Computational enzyme design (CED) can be defined as a bioinformatic <em>in silico </em>approach used to model, construct, and enhance enzyme catalysis. CED uses complex optimization algorithms that enable to direct evolution by using computational systems. As a further step, after the modelization of optimal enzymatic activity, bioinformaticians require to determine the nucleotide sequences which will be subsequently used to synthesize the corresponding enzymes.
The point at which the toxin would interrupt normal cell signalling in the pathway is the signal amplification.
This is because of the G-protein uncoupling and inhibition of signal amplification by pertusis toxin. Pertusis toxin released by the bacteria Bordetella pertusis and prevents signal that is amplifying from the protein. The G-protein coordinates the interaction between membrane bound receptor proteins and the effector proteins involved in the intracellular signalling. The toxin promotes the uncoupling of this heterotrimetric protein and also inhibits the amplification thus preventing the interaction of the receptor proteins and the second messengers.
