General Biology: Definitions and explanations page 10 PDF | Download eBooks

Learn general biology terms with definitions and explanations, biology terminologies (Page 10) for biology degree programs.


  1. What is Lysogenic cycle?
    Lysogeny, or the lysogenic cycle, is one of two cycles of viral reproduction. lysogeny is characterized ...
  2. What is Lysosome?
    Lysosomes are special organelles that are surrounded by a membrane and maintain an acidic environment within ...
  3. What is Lytic cycle?
    Lytic cycle is a type of life cycle of viruses in the host. the lytic cycle ...
  4. What are Macronutrients?
    Consumed in relatively large amounts (grams or ounces), macronutrients (carbohydrates, fats, proteins, water) are used primarily ...
  5. What are Macrophages?
    Macrophages are a type of white blood cell, of the immune system, that engulfs and digests ...
  6. What is Malignant tumor?
    A term for diseases in which abbhorent cells divide without control and can invade close by ...
  7. What is Malnutrition?
    Malnutrition is a condition that results from eating a diet in which one or more nutrients ...
  8. What are Malpighian tubes?
    The malpighian tubule system is a type of excretory and osmoregulatory system found in some insects, ...
  9. What are Mammary glands?
    A mammary gland is an exocrine gland in mammals that produces milk. this milk is to ...
  10. What is Map unit?
    In genetics, a centimorgan or map unit is a unit for measuring genetic linkage. it is ...
  11. What is Mass extinction?
    Mass extinction is a widespread and rapid decrease in the biodiversity on earth. such an event ...
  12. What is Mass number?
    The mass number is also called atomic mass number or nucleon number and is the total ...
  13. What is Maternal effect gene?
    A maternal gene effect is a phenomenon where the phenotype of an organism is determined by ...
  14. What is Matter?
    A substance that has a physical presence and occupies space and volume. it can be distinct ...
  15. What are Maximum likelihood?
    Maximum likelihood, also called the maximum likelihood method, is the procedure of finding the value of ...
  16. What are Megaphylls?
    Megaphylls are those kinds of plant leaves that have multiple veins within the leaf and leaf ...
  17. What are Megaspores?
    Megaspores, also called macrospores, are a type of spore that is present in heterosporous plants. these ...
  18. What is Meiosis?
    Meiosis is a special type of cell division that reduces the chromosome number by half, creating ...
  19. What is Membrane potential?
    In all types of cells there is an electrical potential difference between the inside of the ...
  20. What are Memory cells?
    Memory cells can be of different types for example one is the memory b cells which ...
  21. What is Menopause?
    Menopause is the time in a females life when menstrual periods cease permanently, andthe women are ...
  22. What is Menstruation?
    Menstruationis the regular discharge of blood and mucosal tissue from the inner lining of the uterus ...
  23. What are Meristem identity genes?
    These genes confer floral identity on the peripheral zone cells that give rise to primordia, so ...
  24. What are Meristems?
    A meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones ...
  25. What is Mesoderm?
    In all bilaterian or bilaterally symmetrical animals, the mesoderm is one of the three primary germ ...
  26. What is Mesophyll?
    The mesophyll is a soft spongy material located between the upper and lower epidermal surfaces, and ...
  27. What is Metabolic rate?
    Metabolism comprises the processes that the body needs to function. basal metabolic rate is the amount ...
  28. What is Metabolism?
    Metabolism is the set of life-sustaining chemical reactions in organisms. the three main purposes of metabolism ...
  29. What is Metagenomics?
    Metagenomics is the study of genetic material recovered directly from environmental samples. the broad field may ...
  30. What is Metamorphosis?
    Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving ...
  31. What is Metanephridium?
    A metanephridium is a type of excretory gland found in many types of invertebrates such as ...
  32. What is Metaphase plate?
    Metaphase plate is not a physical structure but rather an imaginary edifice. it is named so ...
  33. What is Metastasis?
    Metastasis is the spread of cancerous and abnormal cells from the main site to a different ...
  34. What are Methanogens?
    Methanogens are microorganisms that produce methane as a metabolic byproduct in hypoxic conditions. they are prokaryotic ...
  35. What is MHC molecule?
    The major histocompatibility complex is a set of genes that code for cell surface proteins that ...
  36. What is Microevolution?
    Microevolution is the change in allele frequencies that occurs over time within a population. this change ...
  37. What are Micronutrients?
    Micronutrients are essential elements required by organisms in small quantities throughout life to orchestrate a range ...
  38. What are Microphylls?
    A microphyll is also called a lycophyll, and is a type of plant leaf with one ...
  39. What are Microspores?
    Microspores are land plant spores that develop into male gametophytes. the male gametophyte gives rise to ...
  40. What is Microvilli?
    Microvilli are microscopic protrusions that extend from the cell membrane. these are distinct from flagella and ...
  41. What are Minerals?
    In the context of nutrition, a mineral is a chemical element required as an essential nutrient ...
  42. What is miRNA?
    A microrna is a small non-coding rna molecule found in plants, animals and some viruses, that ...
  43. What is Mismatch repair?
    Mismatch repair means repairing the dna where the nucleotide pairs have been mismatched. this kind of ...
  44. What are Missense mutations?
    Missense mutation refers to a change in one amino acid in a protein, arising from a ...
  45. What is Mitochondrial matrix?
    The matrix of mitochondria is more viscous than the cell's cytoplasm as it contains less water ...
  46. What is Mitochondrial myopathy?
    A group of neuromuscular diseases caused by damage to the mitochondria that are the main energy-producing ...
  47. What is Mitochondrion?
    Mitochondria are also called the powerhouse of the cell. it is the site where respiration takes ...
  48. What is Mitosis?
    Mitosis is a part of the cell cycle when replicated chromosomes are separated into two new ...
  49. What is Mitotic phase?
    The m phase or mitosis is a part of the cell cycle when replicated chromosomes are ...
  50. What is Mitotic spindle?
    The mitotic spindle is the macromolecular structure that has an important function during mitosis. the major ...
  51. What are Mixotrophs?
    A mixotroph is an organism that can use a mix of different sources of energy and ...
  52. What are Model organisms?
    A model organism is any species that is not human and is comprehensively studied to understand ...
  53. What is Molarity?
    Molarity is the unit of concentration and is described as the amount of solute dissolved pe ...
  54. What is Molecular clock?
    The molecular clock is figurative term for a technique that uses the mutation rate of biomolecules ...
  55. What are Molecules?
    Molecules are made up of atoms that are held together by bonds or forces. they do ...
  56. What are Monoclonal antibodies?
    Monoclonal antibodies are antibodies that are made by identical immune cells that are all clones of ...
  57. What are Monocots?
    Monocots differ from dicots in four distinct structural features: leaves, stems, roots and flowers. but, the ...
  58. What is Monohybrid cross?
    A monohybrid cross is a mating between two organisms with different variations at one genetic chromosome ...
  59. What are Monohybrids?
    A hybrid that is heterozygous with respect to a specified gene. it is just a term ...
  60. What are Monomers?
    The smaller units of a polymer that chain together in large numbers and form a macromolecule ...