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Questions and Answers
What is the main method of reproduction in prokaryotic cells?
What is the main method of reproduction in prokaryotic cells?
Which process involves the transfer of genetic material between different prokaryotic species?
Which process involves the transfer of genetic material between different prokaryotic species?
What role does horizontal gene transfer play in prokaryotes?
What role does horizontal gene transfer play in prokaryotes?
What is a natural reservoir in the context of infectious diseases?
What is a natural reservoir in the context of infectious diseases?
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Which of the following is an example of a vector species for disease transmission?
Which of the following is an example of a vector species for disease transmission?
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Which domain of life includes extremophiles such as methanogens and halobacteria?
Which domain of life includes extremophiles such as methanogens and halobacteria?
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What is a common cause of antibiotic resistance?
What is a common cause of antibiotic resistance?
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In terms of cell wall composition, which of the following is true about Bacteria?
In terms of cell wall composition, which of the following is true about Bacteria?
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Which bacterium is known as MRSA and is resistant to many antibiotics?
Which bacterium is known as MRSA and is resistant to many antibiotics?
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What is a common shape among Spirochetes?
What is a common shape among Spirochetes?
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Which domain shows more similarity in gene expression to eukaryotes?
Which domain shows more similarity in gene expression to eukaryotes?
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Study Notes
Prokaryotic Reproduction
- Main method of reproduction in prokaryotic cells is binary fission, a simple process where one cell divides into two identical cells.
Genetic Material Transfer
- Conjugation is the process that involves the transfer of genetic material between different prokaryotic species, enhancing genetic diversity.
Horizontal Gene Transfer
- Horizontal gene transfer plays a crucial role in prokaryotes by facilitating the acquisition of new traits, including antibiotic resistance, through mechanisms such as transformation, transduction, and conjugation.
Natural Reservoir
- A natural reservoir refers to organisms or environments that harbor pathogens and facilitate their transmission, acting as a source of infection for humans and other species.
Vector Species
- An example of a vector species for disease transmission is the mosquito, which can carry and spread infectious agents to humans and other animals.
Extremophiles
- The domain Archaea includes extremophiles such as methanogens, which produce methane in anaerobic environments, and halobacteria, which thrive in high-salt environments.
Antibiotic Resistance
- A common cause of antibiotic resistance in bacteria is the misuse or overuse of antibiotics, which leads to the selection of resistant strains.
Bacterial Cell Wall Composition
- Bacteria can be classified based on cell wall composition; gram-positive bacteria have a thick peptidoglycan layer, while gram-negative bacteria have a thinner layer and an outer membrane.
MRSA
- Methicillin-resistant Staphylococcus aureus (MRSA) is a bacterium known for being resistant to many antibiotics, posing significant challenges to treatment.
Spirochete Shape
- Spirochetes commonly exhibit a spiral or helical shape, which aids in their motility through viscous environments.
Gene Expression Similarity
- The domain Eukarya shows more similarity in gene expression to Archaea, particularly in mechanisms related to transcription and translation.
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Description
Learn about how prokaryotic cells reproduce asexually through binary fission, without undergoing mitosis. Understand the process of chromosome replication, cell division, and generation of clone cells. Explore the concept of horizontal gene transfer and its role in genetic variation and evolution of prokaryotic organisms.
