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Biology   >   Variation and Evolution

Variation and Evolution

 
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Variation and Evolution

In this course, Dr Agnese Lanzetti (University of Birmingham) discusses several aspects of variation and evolution in biology. We cover: (i) the modern understanding of evolution by natural selection, covering genotype vs phenotype, mutations, and some examples of natural selection and selective breeding; (ii) the history of our understanding of evolution, the emergence of the evolutionary theories of Darwin and Wallace along with some of the opposition to their ideas; (iii) the concept of genetic inheritance and how genes are passed down generations; (iv) evidence of evolution from fossils and the fossil record; (v) evidence of evolution from the modern day such as antibiotic resistance.

Variation and Evolution

In this first mini-lecture, Dr. Anessa Lanzetti (University of Birmingham) begins this course by introducing the modern day understanding of evolution. We cover the concept of organisms having DNA (genotype) that determines their appearance (phenotype); mutations in DNA creating variation, which can be neutral, beneficial, or detrimental; natural selection acting on these mutations, favoring traits that help organisms survive and reproduce including some example; how artificial selection is used to breed specific traits, seen in crops like corn and mustard plants, and domestic animals like dogs.

Cite this Lecture

APA style

Lanzetti, A. (2024, July 16). Variation and Evolution - Variation and Evolution [Video]. MASSOLIT. https://massolit.io/courses/variation-and-evolution

MLA style

Lanzetti, A. "Variation and Evolution – Variation and Evolution." MASSOLIT, uploaded by MASSOLIT, 16 Jul 2024, https://massolit.io/courses/variation-and-evolution

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Lecturer

Dr Agnese Lanzetti

Dr Agnese Lanzetti

Birmingham University