Answer: A geneticist studying the variation between different groups of organisms of the same species is engaged in population genetics.
Step-by-step explanation:
Population genetics is a branch of genetics that focuses on studying the genetic variation and the processes that lead to changes in the gene pool of populations over time. When a geneticist examines the variation between different groups of organisms of the same species, they are specifically investigating the genetic differences that exist within and between populations.
Here are some key points about population genetics:
1. Genetic variation: Population genetics aims to understand the sources and patterns of genetic variation within populations. This includes variations in DNA sequences, gene frequencies, and the presence of different alleles.
2. Factors influencing genetic variation: The genetic variation observed within populations is influenced by various factors, such as mutation, genetic drift, gene flow, and natural selection. These factors can lead to changes in the genetic composition of populations over generations.
3. Comparative analysis: By comparing the genetic makeup of different populations, geneticists can identify and analyze the genetic differences between them. This analysis helps in understanding the evolutionary relationships and genetic diversity within and between populations.
4. Evolutionary processes: Population genetics provides insights into the evolutionary processes that shape the genetic characteristics of populations. It helps in studying the mechanisms of speciation, adaptation, and genetic differentiation.
5. Practical applications: Population genetics has practical applications in various fields, including conservation biology, agriculture, and medicine. It helps in understanding the genetic basis of diseases, managing endangered species, and improving crop breeding programs.
In summary, a geneticist studying the variation between different groups of organisms of the same species is engaged in population genetics. This field provides valuable insights into the genetic diversity, evolutionary processes, and practical applications related to populations of organisms.