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BiologyCraze is HelpFul for CBSE Biology Students, CHSE Biology Students, NEET Aspirants and OUAT Aspirants.

  • You can get Previous year question of various exam
  • You can get Biology notes.
  • NCERT Exercise Solutions.

BiologyCraze provides Syllabus of different biology related exams and exam schedules.


Chapter- Heredity and Variation (Genetics)

One mark questions:-

  1. Monohybrid cross yields ______ numbers of genotype. (CHSE – 2014)
  2. The term ‘gene’ was coined by _____ in the year 1909. (CHSE – 2015

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Chapter- Molecular Basis of Inheritance 

One mark questions:-

  1. _____ is the initiation codon. (CHSE – 2012)
  2. RNA does not have _____ as a nitrogenous base. (CHSE – 2013)
  3. The initiation codon AUG

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CPET 2020 exam date

Extension of dateline for common PG Entrance test-2020 (CPET-2020) under project student academic management system (SAMS) is given below. Commencement of Entrance examination (CPET-2020) - 10th october to 19th october 2020 Publication of state wide merit list - 7

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NEET 2020 question paper pdf

It is the NEET 2020 question paper. It contains chemistry, physics, and biology questions.


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CHSE Science Revised Syllabus for 2020 - 2021

For 2020 - 2021 batch syllabus is reduced. 30% of the syllabus is reduced. It is the syllabus for the CHSE Science board exam. It is only for the 2020 - 2021 batch. Here you can get both +2 first year and second-year science syllabus. You

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UNIT-3: Biology and Human Welfare

Chapter-1:- Health & Disease


  • Health is not only absence of disease.
  • WHO has defined health a state of complete physical, mental and social well being.


Health and disease chapter is the most important chapter for the CHSE Odisha Biology board exam. It is the most important chapter for one-mark questions, short notes or, short answer type questions and differentiates.

First, see the new syllabus and then practice these questions. Becaus

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Chapter- Human Reproduction

Q1) Fill in the blanks:-

  1. Humans reproduce ___________.(asexually/sexually)
    • Answer: Sexually
  2. Humans are ________. (oviparous, viviparous, ovoviparous)

  • Majority of the world’s population is suffering from the deficiency of proteins, vitamins and essential minerals.
  • Goiter due to iodine deficiency, blindness due to vitamin A deficiency and anemia due to iron and folate deficiency remain major health problems in India. Read More