The Neutral Theory states that:
1)For selectively neutral mutations,the rate of molecular evolution is equal to the rate at which these mutations occur in the population.
2)The rate of evolution does not depend on population size,the efficiency of selection,or peculiarities of the mating system.
3)If the neutral mutation rate is constant,then nucleotide and amino acid substitutions,which are due to mutations,should occur in clocklike fashion in all evolving lineages.
A) 1
B) 2
C) 3
D) 1 and 2
E) All of these

Question

Quizplus · Accepted Answer

All three statements are true for the Neutral Theory. The theory suggests that most mutations are selectively neutral, meaning they do not confer an advantage or disadvantage to the organism. Therefore, the rate of molecular evolution is equal to the rate at which these neutral mutations occur in the population. Additionally, the theory proposes that the rate of evolution is not affected by population size, selection efficiency, or mating system. Finally, if the neutral mutation rate is constant, then nucleotide and amino acid substitutions should occur in a clock-like fashion in all evolving lineages, leading to the third statement being true. Therefore, all three statements are consistent with the Neutral Theory.

The Neutral Theory States That