The correct answer is: Decrease allosteric effects and cooperative binding of second messengers to their targets.
Scaffold proteins are considered regulatory proteins that affect many signal pathways. Some of their functions are:
• Regulation and coordination of positive and negative feedback signals
• Localizing signal components within the cell (in different cell compartments)
• Tethering signaling components (assembling signal components into complexes in order to increase signal efficiency).
Answer:
The correct answer will be option-A
Explanation:
The Mosses are the non-vascular plants that were developed from the aquatic plants and the ferns are the vascular plants which developed from the bryophytes.
Their life cycle shows alternation of generation and is largely dependent on the water for reproduction mainly fertilization or fusion of gametes.
The male gametes produced in these plant groups are haploid and are released in water which fuses in water with female gamete which is distinct from the higher plant groups gymnosperms and angiosperms where fertilization is mediated by mostly the wind or insects.
Thus, option-A is the correct answer.