What is the engineering cycle and why is it important

An engineering cycle is meant to assess the environmental impacts in relation to economic impacts on a product. The assessment is  the whole life cycle of a product consisting of production, use phase and end of life. It's important because it helps mold the standard of living for generations to come and be sustained indefinitely. It protects against negative environmental factors but also reduces the cost of production for business', also.

Ithink the dna sequences may vary but the amino acid sequences are identical.