FreeNotes
The G0 phase is a resting phase where the cell exits the normal cycle and stops dividing. Cells in the G0 phase are metabolically active but do not undergo mitosis. Some cells remain in G0 for an extended period, such as neurons, while others may re-enter the cycle when needed. Related Questions: Give the modifications … Read more
Crossing over is the process where homologous chromosomes exchange genetic material during prophase I of meiosis. This exchange leads to genetic recombination, resulting in offspring with a mixture of genetic traits from both parents. This process enhances genetic diversity. Related Questions: Give the modifications of epidermal cells for: Explain the spindle in detail. Which organelles … Read more
The spindle is a structure made of microtubules that forms during cell division. It helps in the movement of chromosomes. The spindle fibers extend from the centrosomes and attach to the centromeres of chromosomes. The role of the spindle is to ensure that the chromosomes are aligned properly during metaphase and are then separated into … Read more
A species is the most specific classification and includes organisms that can interbreed, while a genus is a group of closely related species. Related Questions: Why are the following scientists famous for? What is a domain? Name the three domains of life. What are the bases of classification of life into domains? Why is a … Read more
Cell type (prokaryotic/eukaryotic), body structure (unicellular/multicellular), mode of nutrition (autotrophic/heterotrophic), and presence of a cell wall. Related Questions: Why are the following scientists famous for? What is a domain? Name the three domains of life. What are the bases of classification of life into domains? Why is a mule not regarded as a species? What … Read more
Archaea have unique cell membrane lipids and can survive in extreme environments, while Bacteria have peptidoglycan in their cell walls and are more common in moderate environments. Related Questions: Why are the following scientists famous for? What is a domain? Name the three domains of life. What are the bases of classification of life into … Read more
Taxonomy helps classify and name organisms systematically, allowing scientists to study relationships, evolution, and biodiversity. Related Questions: Why are the following scientists famous for? What is a domain? Name the three domains of life. What are the bases of classification of life into domains? Why is a mule not regarded as a species? Define: … Read more
Binomial Nomenclature: Definition, Aims, Principles, and Importance Definition Binomial nomenclature is a system of naming organisms using two Latin or Latinized names: the genus name (capitalized) and the species name (lowercase). This system was introduced by Swedish botanist Carl Linnaeus in the 18th century and is universally used in scientific classification. For example, the domestic … Read more
Diagnostic Characteristics of the Four Kingdoms of Domain Eukarya The Domain Eukarya includes all eukaryotic organisms, which have membrane-bound nuclei and organelles. It is divided into four kingdoms: Protista, Fungi, Plantae, and Animalia. Kingdom Cell Type & Structure Mode of Nutrition Reproduction Mobility Examples Protista Unicellular or simple multicellular, eukaryotic Autotrophic (photosynthetic) or heterotrophic Mostly … Read more
Taxonomic ranks from broadest to most specific: 1. Domain 2. Kingdom 3. Phylum 4. Class 5. Order 6. Family 7. Genus 8. Species Related Questions: Define: How can you differentiate between? Compare the two-kingdom, three-kingdom, and five-kingdom systems of classification. Answer the following with supportive reasons: What is biodiversity? Write the importance of biodiversity in … Read more