The Substitution Mechanism Whose Rate Depends Primarily on the Degree

question 64

Short Answer

The substitution mechanism whose rate depends primarily on the degree of steric hindrance around the leaving group is the ___.

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Definitions:

Cetaceans

A group of marine mammals that includes whales, dolphins, and porpoises, known for their intelligence and aquatic adaptations.

Molecular Clock

The molecular clock is a method used to estimate the time of evolutionary divergence between species by comparing genetic differences and assuming a constant rate of molecular change.

Mutations

Mutations are changes in the DNA sequence of an organism's genome, which can result in new phenotypes and contribute to genetic variation.

Lineages

Sequences of species descending from a common ancestor, often shown in phylogenetic trees to illustrate evolutionary relationships.