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Chapter 1: Q11CP (page 11)

Why is evolutionary change constrained by its past but impossible to predict?

Short Answer

Expert verified

Evolution has no clear ulterior motive, so the evolutionary change constraint is impossible to predict.

Step by step solution

01

Evolutionary constrain

The evolutionary constrain are the limitation or biases on the outcome of adaptive evolution.All evolution is constrained.

02

Evolutionary change is impossible to predict

Pre-existing elements constrain the new structures and metabolic functions. Because evolution lacks a clear ulterior motivation, it is impossible to predict.

Moreover, the genetic variations occur randomly that why evolution is generally unpredictable. However, the observed recurring convergence of evolution leads to the occasional loss of pigmentation in living things.

Hence, evolutionary change constrained by its past is not possible to predict.

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Most popular questions from this chapter

螖G掳鈥� for the isomerization reaction

glucose-1-phosphate (G1P) 鈫抔lucose-6-phosphate (G6P)

is 鈭�7.1 kJ 路 mol鈭�1. Calculate the equilibrium ratio of [G1P] to [G6P] at 25掳C.

Calculate the equilibrium constant for the reaction. Glucose-1-phosphate+H2O gives Glucose+ H2PO4- at pH 7 and 25oC.

Explain the selective advantages of compartmentation and metabolic pathways.

Why is the cell membrane not an absolute barrier between the cytoplasm and the external environment?

Summarize the major stages of chemical evolution.

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