In the late 1960s (and since), Lynn Margulis (and others) provided considerable evidence for the endosymbiotic theory of the origin of various organelles in eukaryotic cells. What is the endosymbiotic theory? Which two eukaryotic organelles were proposed to have arisen as endosymbionts? What evidence did Margulis present to support each organelle as an endosymbiont?

Q: Describe how the endosymbiotic theory explains eukaryotic cell evolution.

A: They consist of eubacteria and archaebacteria. Eukaryotes have complex internal organisation and…

Q: Why would laboratory culture conditions select for the evolution of cells lacking flagella

A: INTRODUCTION Microbiology is the study of microscopic organisms, bacteria microorganism, viruses,…

Q: What is one argument against the idea that the nucleus has also become part of a eukaryotic cell via…

A: A prokaryotic cell consists of circular DNA that is free in the cytoplasm without being bound by a…

Q: The hypercycle model explains which of the following?     A) How the evolutionary transition from…

A: A hypercycle can be understood as an unique demonstrate of organization of self-replicating…

Q: What are the features of modern-day mitochondria that has been inherited from their prokaryotic…

A: Mitochondria is a double-membrane bound organelle and are best known as the powerhouse of eukaryotic…

Q: What are the two organelles in eukaryotes that originated from separate endosymbiotic events from…

A: Endosymbiotic theory explains the evolution of eukaryotic organelles from prokaryotes. Organelles…

Q: Which of the following applies the theory that cells are the basic unit of structure and functioning…

A: According to cell theory: (a) All living organisms are composed of cells and product of cells. (b)…

Q: Describe IN YOUR OWN words what the “endosymbiotic theory” is. What evidence supports this…

A: Endosymbiotic theory was repopularized in 1967 by Lynn Sagan (later Margulis) and also mentioned in…

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A: Kanamycin and diphtheria toxin can not be a good option for the treatment of archaeobacterial…

Q: How did the development of Margulis' theory aid in our understanding of how complex organisms came…

A: Answer. In 1967, Lynn Margulis developed the endosymbiotic theory. This theory describes how over…

Q: List three sources of evidence that support theendosymbiotic theory of organelle evolution.

A: The endosymbiotic theory states that some of the organelles in today's organism cells were once…

Q: What does the Endosymbiotic theory say?

A: Endosymbiotic theory or symbiogenesis is an evolutionary theory of the origin of eukaryotic cells…

Q: Eukaryotic cells might have evolved from early prokaryotic cells living in close association. What…

A: The endosymbiotic theory supports that the organelles that are present in the modern eukaryotic…

Q: What role did the increase of atmospheric oxygen by prokaryotes play in the development of the…

A: The studies on geological history of oxygen shows that before photosynthesis evolved, the earth's…

Q: The introductory passage describes the identification of eukaryotic signature genes in…

A: Defining life can be challenging, as there are many different characteristics and properties that…

Q: Describe in sentences how having organelles is important for creatures to be multicellular.  (ex.…

A: An organism can grow larger than the size restrictions often enforced by diffusion when it is…

Q: Which of the following is evidence that eukaryotes and prokaryotes share a common ancestor?   a.All…

A: The cells of both prokaryotes and eukaryotes possess common structure organization (e.g presence of…

Q: What evidence supports theidea that the major organelles of eukaryotes were onceBacteria?

A: Endosymbiotic theory states that there are certain organelles present inside the present eukaryotic…

Q: What evidence supports the hypothesis that mitochondriapreceded plastids in the evolution of…

A: Plastids are double membrane-covered cytoplasmic organelles that possess their own genetic machinery…

Q: what phylum does this organism belong to? what kingdom does this organism belong to? is this…

A: Taxonomic rank is used for obtaining scientific classification of organisms. It indicates the level…

Q: Make a comparison between a prokaryotic cell and a eukaryotic cell as to: 1. genetic material 2.…

A: The three domains of life includes are categorized into Archaea, Bacteria, and eukarya. There are…

Q: Identify two features of organelles that support theendosymbiotic theory of organelle evolution.

A: Introduction  Life starts on earth around 3.4 billion years ago, in the ocean. Primitive organism…

Q: The endosymbiont theory states that mitochondria andchloroplasts evolved from symbiotic…

A: The endosymbiont theory was widely accepted theory for the origin of eukaryotic organelles. It…

Q: Domain Hypothesis

A: The three-domain system can be defined as the biological classification that was introduced by carl…

Q: In Figure 17-25, which species is most closely related tothe ancestral yeast strain? Why are genes 3…

A: Whole genome duplications are unusual genetic occurrences with deep implications. They double the…

Q: Compare and contrast the structure and function of the following among bacteria and eukaryotes: a.…

A: In bacteria, ribosomes are cellular structures responsible for protein synthesis. They are composed…

Q: Prokaryotic and eukaryotic cell membranes share similar phospholipid bilayers. What does this tell…

A: All the living organisms contain a phospholipid bilayer as the outermost covering which is also…

Q: what evidence supports the claim that all cells share a common ancestor?

A: The change in the heritable characteristics in a population over a period is termed as evolution.…

Q: . Name the two organelles and their modern function . Give at least 2 pieces of supportive evidence…

A: An endosymbiont is one organism that lives within another. Every single eukaryotic cell, are…

Q: The Phylum Animalia has some unique traits that set it apart from plants and fungi. Check all traits…

A: Animals (likewise called Metazoa) are multicellular eukaryotic living beings that structure the…

Q: How old are the oldest fossils of Eukaryotic cells?

A: The prokaryotic cell originated on the Earth around 3.8 billion years ago. These prokaryotic…

Q: Which of the following changes in early prokaryotes could be predicted to result in the emergence of…

A: A cell is the basic structural, functional, and biological unit of all known organisms. Cells are…

Q: Why were Archaea originally thought to be simply unusual forms of Bacteria? What lines of evidence…

A: Biological classification is a method in biology to differentiate living beings based on their size,…

Q: looking at some pond water under the microscope, you notice an unfamiliar rod-shaped cell about 200…

A: Single-celled creatures belong to the Archaea domain. Prokaryotes are microorganisms without cell…

Q: What is the most important reason for evolution of bacteria? Explain briefly. GiG of cancer by…

A: Bacterial evolution has continued over the billions of the years since the precambian time period.…

Q: Endosymbiotic theory can be applied to Biomolecules as it invloves the development of nucleic acid…

A: Endosymbiotic theory: This theory explains how Organelles arose in organisms. Mitochondria,…

Q: According to Philip Bell’s viral eukaryogenesis hypothesis, genes for DNA replication, RNA…

A: DNA replication, RNA transcription, protein translation, and histone proteins are the terms related…

Q: The fact that a prokaryote has the ability to make a new protein that is placed in the cell membrane…

A: Prokaryotes are organisms in which cell do not have nucleus and organelles.  Prokaryotes are further…

Q: What differences are there between a free living, single celled organism such as a paramecium and a…

A: The organism can be divided into two main classes, the prokaryote and the eukaryote. Cell is the…

Q: 50) Some protists, formerly united as the ʺamitochondriateʺ clade, have recently been shown to be…

A: The Kingdom Protista has been disassembled over several decades as a result of sequence studies…

Q: The evolution of eukaryotic cells most likely involved

A: Answer - Option A - Endosymbiosis of an aerobic bacterium in a larger host cell - the endosymbiont…

Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.