**Question:**Which of the following is the LEAST CONVINCING argument against micromutationism?**Options:**1. Advantageous mutations of large effect are more resistant to loss by drift than advantageous mutations of small effect.2. Mutations of small effect are more likely to be advantageous than mutations of large effect.3. Empirical studies suggest that some adaptive traits are governed at least in part by loci of large phenotypic effect. (Selected)**Explanation:**This multiple-choice question explores arguments related to "micromutationism," a concept in evolutionary biology. The question asks which argument is least persuasive against the idea that evolution occurs primarily through small genetic changes (micromutations).**Option 1** argues that large-effect mutations are less likely to be lost due to genetic drift compared to small-effect mutations, suggesting they may play a significant role in evolution.**Option 2** asserts that small-effect mutations are more likely to result in advantageous changes than large-effect mutations.**Option 3** presents empirical evidence indicating that some traits are influenced by genes with substantial effects, challenging the notion that only small changes are significant in evolution. This is identified as the least convincing argument against micromutationism.

Answered: Empirical studies suggest that some…

Science

Biology

Empirical studies suggest that some adaptive traits are governed at least in part by loci of large phenotypic effect.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter10: Biotechnology

Section: Chapter Questions

Problem 13CTQ: Identify a possible advantage and a possible disadvantage of a genetic test that would identify...

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Concept explainers

Genetic Variation

Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.

Quantitative Genetics

Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.

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