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Biology
List of top Biology Questions
If a colour-blind woman marries a person whose mother is colour-blind, then what is the probability of colour blindness in their offspring?
CBSE Compartment XII - 2025
CBSE Compartment XII
Biology
Principles of Inheritance and Variation
Describe biofortification in brief.
Bihar Board XII - 2025
Bihar Board XII
Biology
Food Technology
Present a well-labelled neat and clean diagram of recombinant technology.
Bihar Board XII - 2025
Bihar Board XII
Biology
Biotechnology
Present a neat, clean, and well-labelled diagram of an embryo inside the human uterus.
Bihar Board XII - 2025
Bihar Board XII
Biology
Human Reproduction
What is epistasis?
Bihar Board XII - 2025
Bihar Board XII
Biology
Genetics
What do you understand by ground water? Describe the causes for its depletion and remedies.
Bihar Board XII - 2025
Bihar Board XII
Biology
Environmental Issues
Explain any two differences between c-DNA and s-DNA.
Bihar Board XII - 2025
Bihar Board XII
Biology
Molecular Biology
Explain the differences between any two of the following:
(a) Food chain and food web
Bihar Board XII - 2025
Bihar Board XII
Biology
Ecology
Write any two differences between integument and testa.
Bihar Board XII - 2025
Bihar Board XII
Biology
Morphology of flowering plants
What is the importance of Red Data Book?
Bihar Board XII - 2025
Bihar Board XII
Biology
Ecology and Environment
What is mycorrhiza?
Bihar Board XII - 2025
Bihar Board XII
Biology
Microbes in human welfare
Write any two symptoms of sickle cell anaemia.
Bihar Board XII - 2025
Bihar Board XII
Biology
Genetics
What are pathogens? Write the names of any one plant and one animal pathogen.
Bihar Board XII - 2025
Bihar Board XII
Biology
Human health and disease
What is gene library?
Bihar Board XII - 2025
Bihar Board XII
Biology
Biotechnology
What are sacred groves?
Bihar Board XII - 2025
Bihar Board XII
Biology
Ecology and Environment
Mention any two harmful effects of sewage.
Bihar Board XII - 2025
Bihar Board XII
Biology
Environmental Issues
Define commensalism and write two examples.
Bihar Board XII - 2025
Bihar Board XII
Biology
Ecology
Define germplasm.
Bihar Board XII - 2025
Bihar Board XII
Biology
Food Technology
Write the names of any four species along with their scientific names.
Bihar Board XII - 2025
Bihar Board XII
Biology
Diversity In The Living World
Mention any two benefits of self-pollination.
Bihar Board XII - 2025
Bihar Board XII
Biology
Reproduction in Plants
What is Klinefelter syndrome?
Bihar Board XII - 2025
Bihar Board XII
Biology
Genetics
Write two differences between ontogeny and phylogeny.
Bihar Board XII - 2025
Bihar Board XII
Biology
Evolution
Mention any two advantages of genetically modified animals.
Bihar Board XII - 2025
Bihar Board XII
Biology
Biotechnology
What do you mean by camouflage?
Bihar Board XII - 2025
Bihar Board XII
Biology
Evolution
By which of the following means is the colour of skin determined in human beings?
Bihar Board XII - 2025
Bihar Board XII
Biology
Genetics
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