Course Content
UPSC Notes Samples
Full Syllabus Covered | 100% as per Official UPSC Syllabus
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1. Art & Culture Sample
Covered under topic 1. Indian culture will cover the salient aspects of Art Forms, Literature and Architecture from ancient to modern times.
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1. Indian culture will cover the salient aspects of Art Forms, Literature and Architecture from ancient to modern times. (copy)
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2. Modern Indian history from about the middle of the eighteenth century until the present- significant events, personalities, issues. (copy)
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5. History of the world will include events from the 18th century such as Industrial revolution, World wars, Redrawal of national boundaries, Colonization, Decolonization, Political philosophies like Communism, Capitalism, Socialism etc.- their forms and effect on the society.
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7. Role of women and women’s organizations, Population and associated issues, Poverty and developmental issues, Urbanization, their problems and their remedies.
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10.2. Introduction to Maps
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GS2
All topics that need updates are given below.
2. Functions and responsibilities of the Union and the States, issues and challenges pertaining to the federal structure, devolution of powers and finances up to local levels and challenges therein.
All topics that need updates are given below.
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5. Parliament and State Legislatures – structure, functioning, conduct of business, powers & privileges and issues arising out of these.
All topics that need updates are given below.
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6. Structure, organization and functioning of the Executive and the Judiciary; Ministries and Departments of the Government; pressure groups and formal/informal associations and their role in the Polity.
All topics that need updates are given below.
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12. Welfare schemes for Vulnerable Sections of the Population by the Centre and States and the Performance of these schemes; Mechanisms, Laws, Institutions and Bodies constituted for the Protection and Betterment of these Vulnerable Sections.
All topics that need updates are given below.
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GS3
All topics that need updates are given below.
11. Science and Technology- developments and their applications and effects in everyday life.
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GS3: BIODIVERSITY AND ENVIRONMENT
All topics that need updates are given below.
1. Environment
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GS4
All topics that need updates are given below.
GS3: SCIENCE AND TECHNOLOGY
All topics given below
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1. Motion & Measurements
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9. Metals & Non-Metals
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10. Energy
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12. Plant Organisms
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14. Life Processes
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18. Biotechnology
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19. Information Technology
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20. Space Technology
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National & International Current Affairs (CA) 2025
Current affairs of all months are given below
delete UPSC Sample Notes [English]

xi.3. Genes at Work: How We Get Traits from Mom and Dad, Explained with Pea Plants!

Details

  • Genes control characteristics and each trait is associated with specific genes.
  • The mechanism of heredity involves the contribution of genetic material from both parents.
  • Germ cells have one set of genes, ensuring diversity in offspring during sexual reproduction.
  • Chromosomes, present as separate pieces, are inherited from each parent, contributing to trait inheritance.
  • Mendelian experiments:  Tested with pea plants showing two different characteristics. It illustrated the concept of dominance and recessiveness with examples.

Genetic Determination of Sexual Phenotype: The X and Y Chromosomal Dynamics in Human Sex Determination

  • Genetic determination largely influences the sex of newborn individuals in humans.
  • Instructions for determining a baby’s sex are within the fertilized egg or zygote.
  • Chromosomes carry these instructions and reside in the cell nucleus.
  • Humans have 23 pairs of chromosomes, with two being sex chromosomes: X and Y.
  • Females have two X chromosomes, while males have one X and one Y chromosome.
  • Gametes (egg and sperm) carry only one set of chromosomes.


Sex determination in human beings

Role of Sex Chromosomes in Determining Sex

  • Unfertilized eggs always have one X chromosome.
    • While sperms carry either X- chromosome or Y-chromosome.
  • Fertilisation: Fertilization by X-carrying sperm results in a female child, while Y-carrying sperm leads to a male child. 
  • Identity: Sex chromosomes from the father determine the unborn baby’s sex.
  • Mythical Belief: The notion that the mother determines the baby’s sex is inaccurate and unjustified.
  • Role of Environment: For species other than humans, environmental cues and different strategies are used for sex determination as environmental factors play a role in the selection of variants and evolutionary processes.

Genetic Harmony: The Crucial Role of Heredity in Species Stability and Evolutionary Success

  • The mechanism of heredity ensures the stability of the DNA of the species.
  • Sexually reproducing organisms follow similar rules of inheritance, ensuring variation and adaptation.
  • Hence, variations are important for the survival and evolution of species.