Heredity


 
 
Concept Explanation
 

Heredity

1.  The traits, or characteristics, of a species are passed down from one generation to another. 

2.  The closer the relationship, the greater is the similarity.

  • This continuity of traits, which is maintained for all species and passed down to succeeding generations, is called heredity. However, along with the similarities between brothers and sisters, there is also some dissimilarity.
  • The dissimilarities are called variations. The study of the pattern of transmission of characters from parents to their offspring is called genetics.  It is common knowledge that 'Like begets like' i.e., like produces like'. This means human beings give birth to babies, a cat gives birth to kittens-there is continuity of life.
  • Although the offsprings resemble their parent in basic body design but they are not identical to them. They show some characters or traits in which they differ from one another and also from their parents.
  • These differences are as obvious as their resemblance. These differences and resemblances among the offspring and parents are not coincidental.
  • These characters are present in the parents and are passed on to the offspring during reproduction. Here the gametes from both the parents fuse to form a zygote which develops into the offspring.
  • Hence, a cat gives birth to a kitten and a wheat plant into a wheat seed which grows into a wheat plant. This is the essence of heredity.
  • Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Which of the following are correct ?

    (a) This continuity of traits, which is maintained for all species and passed down to succeeding generations, is called heredity.

    (b)  The study of the pattern of transmission of characters from parents to their offspring is called Evolution .

    (c) The characters are present in the parents and are passed on to the offspring during reproduction.

    Right Option : C
    View Explanation
    Explanation
    Question : 2

    A colour blind person has difficulty in seeing _______________

    Right Option : C
    View Explanation
    Explanation
    Question : 3

    Which of the following are correct ?

    (a) Heredity means that the traits, or characteristics, of a species are passed down from one generation to another. 

    (b) The dissimilarities are called genetics.

    (c)  Along with the similarities between brothers and sisters, there is also some dissimilarity.

     

    .

    Right Option : C
    View Explanation
    Explanation
    Chapters
    Pre-Historic Period
    Indus Valley Civilization
    Vedic Civilization
    Religious Reform Movement
    The Early Kingdoms
    The Mauryan Empire
    Post Mauryan Period
    The Age Of The Guptas
    Post Gupta Era
    Age of Rajput
    Khilji Dynasty
    Slave Dynasty
    Tughlaq and Sayyid Dynasty
    Vijaynagar Empire And Bahamani Kingdom
    Mughal Empire And Beyond
    Lodhi Dynasty
    Cholas, Chalukyas and Pallavas
    Arab Invasions
    Bhakti and Sufi Movement
    Rise of Sikhs, Jats and Marathas
    Administrative Structure of Delhi Sultanate
    Architecture During Medivial India
    Advent Of The Europeans
    Post Mughal Period
    Rise of New States in 18th Century
    Growth of British Paramountacy
    Socio Religious Reforms
    Constitutional Development of India
    Indian Struggle Against British Rule
    The Revolt Of 1857
    Education Under British Rule
    Role of Press in Freedom Struggle
    First Phase of National Movement
    Second Phase of National Movement
    Third Phase of National Movement
    Constitutional Development in India
    Constituent Assembly
    Union And Its Territory
    Structure of Indian Constitution
    Fundamental Rights and Duties
    The Union Executive
    The Union Legislature
    Constitutional Amendments and Provisions
    Judiciary In India
    Emergency Provisions
    Center - State Relations
    The State Executive
    The State Legislature
    Election Commission Of India
    Constitutional Organisation
    Non-Constitutional Organisation
    Local Self Goverment
    India - Size And Location
    Geological History Of India
    The Physical Features Of India
    Climate Of India
    Soils In India
    Natural Vegetation
    Windlife Conservation In India
    Drainage System of India
    Irrigation System Of India
    Agriculture In India
    Livestock And Fisheries In India
    Minerals And Energy Resources In India
    Means Of Transport In India
    Major Industries In India
    Tribes of India
    Census of India 2011
    Music
    Dance
    Theatre
    Pantings
    Art, Architecture & Culture of India
    Bio-Diversity
    Earth And Its Structure
    Land Rock And Soil
    Atmosphere, Climate And Weather
    Oceanography
    Human And Regional Geography
    Economic Growth And Development
    Sectors Of Indian Economy
    Economic Planning Of India
    Fiscal And Monetary Policy In India
    Infrastructure In India
    Effects Of British Rule On Indian Economy
    National Income
    Banking System In India
    Poverty And Unemployment
    Inflation And Trade Cycles
    Major Institutions
    Environmental Studies
    Tissues In Organism
    Cytology
    Classifucation Of Plants
    Structural Composition Of Plants
    Nutrition In Plants, Harmones And Plant Disease
    Ecosystem
    Classification In Animals
    Nutrition In Animals
    Human Digestive System
    Human Respiratory System
    Human Skeleton System
    Human Excretory System
    Human Nervous System
    Human Circulatory System
    Human Endocrine System
    Human Reproductive System
    Genetics
    Human Diseases
    States Of Matter
    Metals And Non Metals
    Acid Bases And Salts
    Element Compounds And Mixture
    Physical And Chemical Change
    Carbon And Its Compounds
    Periodic Classification
    Fuel, Combustion And Flame
    Environmental Chemistry
    Rest And Motion
    Work Power And Energy
    Gravitation
    Pressure And Its Effects
    Simple Harmonic Motion
    Sound and Waves
    Heat And Temperature
    Light - Reflection
    Electricity And Magnetism
    Modern Physics
    Science And Technology
    Force And The Laws Of Motion
    Light - Refraction
    Dispersion And Human Eye
    Magnetic Effect Of Electric Current
    Atom And Molecule
    Chemistry In Everyday Life
    Units And Dimensions
    Content / Category
    Class / Course
     
     
     


    Students / Parents Reviews [10]