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How has the lab technique PCR helped scientists study evolutionary relationships?
PCR helps, specifically, with finding homology between sequences of dna quickly and spefically where scientists want to look in the genomes. PCR, by using 'primers,' pinpoint exactly where they want to make copies of DNA. By making these copies, they can be read by a machine and from there, 'multiple sequence alignment' can be performed to examine evolutionary relationships. These sequences and homology matter to scientists such as structural biologists who want to find out the specific 3D shape of homologous proteins or RNA. They can use homology in, say mice (mammal) DNA sequences to make predictions about the shape of human proteins/RNA--therefore finding ways to attack a 3D structure with a new synthetic medicine.
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Can you Compare the updated classification of protists with the older one?
The updated classification of protists uses molecular data to group organisms based on evolutionary relationships, leading to a more accurate and comprehensive classification system. In contrast, the older classification relied heavily on morphological characteristics, resulting in some inaccuracies and uncertainties in the relationships between different protist groups. The new classification system has helped to clarify the diversity and evolutionary history of protists.
How did scientists accounts for fossils and other geological evidence as they developed the geological time scale?
Scientists developed the geological time scale by analyzing fossils and geological evidence to establish a chronological sequence of Earth's history. They used principles such as stratigraphy, which studies rock layers and their relationships, to correlate different locations and identify distinct time periods. Fossils, particularly those that are time-sensitive or indicative of specific environments, helped to anchor these periods, allowing scientists to date layers and understand the evolutionary history of life on Earth. By integrating these findings, they created a comprehensive framework that outlines the major events and changes in Earth's geology and biology over time.
After Darwin proposed his ideas about natural selection scientists began trying to test his ideas in a variety of ways. Which of the following best explains why it was important that scientists did th?
It was important for scientists to test Darwin's ideas about natural selection to validate and refine his theories through empirical evidence. By conducting experiments and observations, they could either support or challenge his concepts, leading to a deeper understanding of evolution and its mechanisms. Testing these ideas also helped establish a scientific framework for evolutionary biology, ensuring that the theories were based on rigorous data rather than speculation. Ultimately, this process contributed to the acceptance and expansion of evolutionary theory in the scientific community.
What two major developments helped scientists explain the fossil record?
The theory of evolution by natural selection, proposed by Charles Darwin, helped scientists understand the gradual change of species over time recorded in the fossil record. Additionally, advances in radiometric dating techniques provided scientists with the ability to determine the age of fossils more accurately, allowing for a deeper understanding of the timeline of life on Earth.
How do you get rid of air plants on shrubs?
Burning is a good technique, it helped me get rid of the air plants on my shrub.
Which technique helped scientists in the 1800 to identify cell organelles?
The development of the light microscope in the 1800s helped scientists identify cell organelles. This allowed for better visualization of the internal structure of cells and facilitated the discovery and characterization of organelles such as the nucleus, mitochondria, and chloroplasts.
What did Carolus Linnaeus contribute to the theory of evolution?
Carolus Linnaeus is best known for developing the binomial nomenclature system, which classifies and names organisms based on shared characteristics. Although he did not propose the theory of evolution, his hierarchical classification system laid the groundwork for later evolutionary biology by emphasizing the relationships between species. By organizing life into categories, Linnaeus helped scientists understand biodiversity and the connections among different organisms, which would later be integral to evolutionary theory. His work influenced subsequent naturalists, including Charles Darwin, in their exploration of species relationships and evolution.
Why do scientists classify life?
They classify life so that 1. we can learn more. duh. but the other reason is so that they can discover new things in life and help save lives.:*) I hope i helped with this question
How has the theory of evolution affected the science of taxonomy?
The theory of evolution has influenced taxonomy by providing a framework to understand and classify species based on their evolutionary relationships. Taxonomists now use evolutionary principles to group organisms into categories that reflect their common ancestry, leading to a more systematic and comprehensive classification system. This has helped improve our understanding of biodiversity and the relationships between different species.
What is the furthest step that has been achieved in study of human origin?
The furthest step achieved in the study of human origins is the discovery of ancient hominid fossils that provide important insights into our evolutionary history. These fossils have offered valuable information about the species that preceded modern humans and helped to uncover our evolutionary relationships with other hominids. Scientists continue to make advancements in this field through the use of genetic research, archaeological evidence, and comparative anatomy studies.
Why did DNA technology lead to more use if cladistics?
DNA technology allowed for the direct comparison of genetic material between organisms, providing a more precise and objective way to establish evolutionary relationships. This data could then be used in cladistics to construct more accurate phylogenetic trees and classification systems. Overall, the use of DNA technology in cladistics helped to improve the accuracy and reliability of evolutionary relationships among organisms.
Which scientists helped to determine the shape of DNA?
The scientists who helped determine the shape of DNA were James Watson and Francis Crick.
Why did DNA technology leadre use of cladistics?
DNA technology revolutionized the study of evolutionary relationships by providing a way to compare genetic sequences directly, allowing for more precise and objective determination of relationships between species. Cladistics, a method of classification based on evolutionary relationships, became popular in the wake of DNA technology because it provided a systematic way to organize the newly available genetic data into branching family trees. This helped researchers understand the relatedness of species and how they evolved over time.
Can you Compare the updated classification of protists with the older one?
The updated classification of protists uses molecular data to group organisms based on evolutionary relationships, leading to a more accurate and comprehensive classification system. In contrast, the older classification relied heavily on morphological characteristics, resulting in some inaccuracies and uncertainties in the relationships between different protist groups. The new classification system has helped to clarify the diversity and evolutionary history of protists.
Graphing can help scientists do all BUT?
Predict future trends! Anything els can be answered! Let me know if this helped!
How has genetics helped in our understanding of evolution?
Genetics has helped in our understanding of evolution by providing insights into how variations in DNA sequences can lead to differences in traits among organisms. By studying genetic changes over time, scientists can infer how species have evolved and diversified from a common ancestor. Comparing genetic similarities and differences between different species also allows for the reconstruction of evolutionary relationships and the development of phylogenetic trees.
How have microscopes had an effect on classification?
Microscopes have allowed scientists to observe minute details of organisms, leading to the discovery of new characteristics that aid in classification. This has helped in identifying new species, understanding evolutionary relationships, and revising existing classification systems based on morphology and cell structure.
