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Biology
List of top Biology Questions
Write any three differences between DNA and RNA.
UP Board XII - 2023
UP Board XII
Biology
Molecular Basis of Inheritance
Define parthenogenesis. Describe the mechanism of sex determination in honeybees.
UP Board XII - 2023
UP Board XII
Biology
Reproduction in Organisms
Comment upon human insulin.
UP Board XII - 2023
UP Board XII
Biology
Hormones
How many chromosomes are found in Turner and Klinefelter syndromes?
UP Board XII - 2023
UP Board XII
Biology
Principles of Inheritance and Variation
Explain the Mendel's Law of Segregation.
UP Board XII - 2023
UP Board XII
Biology
Principles of Inheritance and Variation
What is double fertilization in plants? Who discovered it?
UP Board XII - 2023
UP Board XII
Biology
sexual reproduction in flowering plants
How do biofertilizers increase the fertility of the soil?
UP Board XII - 2023
UP Board XII
Biology
Microbes in human welfare
Write short note on adaptations of desert plants and animals.
UP Board XII - 2023
UP Board XII
Biology
Evolution and Adaptation
In humans, which type of chromosomes are responsible for sex determination?
UP Board XII - 2023
UP Board XII
Biology
Principles of Inheritance and Variation
Write the name of any one sexually transmitted disease and describe its control measures.
UP Board XII - 2023
UP Board XII
Biology
Reproductive Health
Which enzyme breaks the DNA molecule?
UP Board XII - 2023
UP Board XII
Biology
Molecular Basis of Inheritance
Which gas is released during the process of photosynthesis?
UP Board XII - 2023
UP Board XII
Biology
Plant Physiology
Genetic engineering is used in:
UP Board XII - 2023
UP Board XII
Biology
Applications of Biotechnology
In India, Ramdev Mishra is known as the father of which subject or studies?
UP Board XII - 2023
UP Board XII
Biology
Ecology
Name of vaccine for T.B. is:
UP Board XII - 2023
UP Board XII
Biology
Human health and disease
The point where the funicle is attached to the body of the ovule is called:
UP Board XII - 2023
UP Board XII
Biology
sexual reproduction in flowering plants
Draw only labelled diagram of a DNA double helix structure.
UP Board XII - 2023
UP Board XII
Biology
Molecular Basis of Inheritance
Draw a labelled line diagram of women's reproductive system.
UP Board XII - 2023
UP Board XII
Biology
The Female Reproductive System
Describe the dihybrid cross with the help of checker board.
UP Board XII - 2023
UP Board XII
Biology
Principles of Inheritance and Variation
Describe the structure of human sperm and ovum with diagrams.
UP Board XII - 2023
UP Board XII
Biology
Human Reproduction
What do you mean by adaptations? Describe various adaptations in living organisms with suitable examples.
UP Board XII - 2023
UP Board XII
Biology
Evolution and Adaptation
What do you mean by Biodiversity? Describe its different methods of conservation in detail.
UP Board XII - 2023
UP Board XII
Biology
Biodiversity and Conservation
Describe the process of microsporogenesis in Angiosperms with diagrams.
UP Board XII - 2023
UP Board XII
Biology
sexual reproduction in flowering plants
Write an essay on Biotechnology.
UP Board XII - 2023
UP Board XII
Biology
Biotechnology
What are the causal organisms of typhoid and pneumonia? Give their symptoms.
UP Board XII - 2023
UP Board XII
Biology
Human health and disease
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