In prokaryotes‚ it’s easier to make DNA replication because of the lack of a nucleus‚ but to do DNA replication in a eukaryotic cell is more difficult. DNA of an eukaryotic cell is in chromatin form to fit into the small nucleus for the replication to occur‚ first the DNA should open. This is because it is harder for eukaryotes to carry out DNA synthesis. Replication of DNA in a prokaryote is different from a eukaryote. In a prokaryote they have a single origin where the replication process starts
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Prokaryotic and eukaryotic cells are both vital to our world today. Prokaryotic cells are simple‚ yet the oldest‚ and were known to evolve around 3.5 billion year ago. Eukaryotic cells are more complex and have been said to appear on Earth 2.5 billion years ago. It is sort of like people or characters in movies. You see them one year and basically understand what they’re doing or going through and then a year or two from now they seem like they become more complicated to understand. That’s just
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What does Mary Shelley’s novel Frankenstein and stem cell research have in common? The concept of renewing life. Stem cells are a class of cells that are completely variable and can take the shape of virtually any type of cell. The medical applications of stem cells are potentially limitless‚ and are already in use to cure a fair amount of diseases. Stem cells have their miracle healing abilities‚ and in Frankenstein‚ the scientist figures out a way to bring the dead back to life with science. This
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All living organisms are composed of one or more cells‚ and like any living organism‚ cells are made up of smaller structures that help them function. In the context of cells‚ these smaller structures are referred to as organelles and each organelle has its own unique function that has developed over time. While we are typically aware of how these organelles function‚ how they evolved raises several questions. The main model for how eukaryotic cells evolved over time is the endosymbiont theory. This
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Ashley Andino October 2‚ 2014 Evolutionary Relationships in Mammals For this scientific argument‚ the research question was Which of these mammals are the most closely related? At first‚ my claim had stated “The mammals with more similar traights and characteristics were the ones that were the most closely related.” As my group and I looked deeper into the data‚ we had analyzed the different mammals and ended up with a final claim which was “The elk‚ cow‚ Caribou‚ the Pallid bat‚ and big eared
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into this exploratory mindset and study different aspects related to human life. However‚ scientists‚ specifically evolutionary or developmental biologists‚ study factors to not only human life and development‚ but also life and development beyond humans. This spans the realm of organisms found in the past or present‚ microscopic or macroscopic‚ insignificant or significant. Evolutionary and developmental biologists study all organisms due to this curiosity and the fundamental ideals of biology. All
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Evolutionary Medicine For many years‚ evolutionary principles have helped with many different aspects of the medical field. These principles have significantly helped with providing scientists with helpful information in understanding different illness‚ and issues that arise in the medical field. More specifically‚ the cooperation of evolutionary biology with modern medicine has helped with understanding antibiotic resistance and susceptibility‚ spread of disease‚ and development of cancer. I will
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92\ a.1 Eukaryotic Cell vs Prokaryotic Cell All cells can be classfied into prokaryotes and eukaryotes. Prokaryotes were the only form of life on Earth for millions of years until more complicated eukaryotic cells came into being through the process of evolution. Comparison chart All attributes Differences Similarities | Eukaryotic Cell | Prokaryotic Cell | Nucleus: | Present | Absent | Number of chromosomes: | More than one | One--but not true chromosome: Plasmids | Cell Type: | Multicellular
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Cells are considered the basic units of life in part because they come in discrete and easily recognizable packages. That’s because all cells are surrounded by a structure called the cell membrane. The cell is the very smallest unit of living matter. All living things including plants and animals are made up of cells. Cells are made of atoms‚ which are the smallest units of matter. There are many different kinds of cells. The two kinds you are most likely to be familiar with are animal and plant
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16.1 All of Life is connected through its Evolutionary history Phylogeny- is the history of descent of organisms from their common ancestor. Groups of evolutionarily related species are represented as related branches in a PHYLOGENETIC TREE. - A group of species that consists of a common ancestor and all its evolutionary descendants is called a CLADE. Named clades and species are called TAXA. - HOMOLOGIES are similar traits that have been inherited from a common ancestor. - A trait that is
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