What is ‘saltation’ according to de Vries? 

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Understanding 'Saltation' by de Vries

1. Definition of Saltation:

• Saltation, according to de Vries, is a term used to describe sudden and significant evolutionary changes that occur in a single generation.

2. Characteristics of Saltation:

• Abrupt Changes:

  • Saltation suggests that evolutionary changes can occur abruptly, rather than through gradual and incremental processes.
  • De Vries proposed that new traits or variations could emerge suddenly, leading to significant alterations in the phenotype.

• Distinct from Gradualism:

  • De Vries' concept of saltation stands in contrast to the gradualism proposed by Darwin, where evolution is viewed as a slow and continuous process over many generations.

• Importance of Mutations:

  • Saltation relies on the occurrence of major mutations that result in substantial phenotypic variations.
  • These mutations are considered to be the driving force behind the sudden changes observed in species.

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Conclusion

In conclusion, 'saltation' according to de Vries refers to the sudden and significant evolutionary changes that occur in a single generation, driven by major mutations. For Class 12 students seeking expert guidance in evolutionary biology, UrbanPro.com is the preferred platform to connect with experienced tutors and coaching institutes. Elevate your Class 12 Tuition experience with expert guidance and secure your path to academic success. Connect with professionals on UrbanPro.com today!