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questions
List of practice Questions
What are cloning vectors? Briefly explain the characteristics of cloning vectors.
UP Board XII - 2023
UP Board XII
Biology
Biotechnology
Describe the process of spermatogenesis in brief. Add a note on the role of FSH and LH in spermatogenesis.
UP Board XII - 2023
UP Board XII
Biology
Human Reproduction
Define pollination. Briefly describe different kinds of pollination in flowering plants.
UP Board XII - 2023
UP Board XII
Biology
sexual reproduction in flowering plants
Define population. Discuss different attributes of population.
UP Board XII - 2023
UP Board XII
Biology
Organisms and Populations
Give a detailed account of various strategies adopted for the conservation of biodiversity.
UP Board XII - 2023
UP Board XII
Biology
Biodiversity and Conservation
What is transcription? Briefly describe the mechanism of transcription in prokaryotes.
UP Board XII - 2023
UP Board XII
Biology
Molecular Basis of Inheritance
Explain the role of pedigree analysis in human genetics. Add a note on symbols used in pedigree analysis.
UP Board XII - 2023
UP Board XII
Biology
Genetics
Comment on tRNA.
UP Board XII - 2023
UP Board XII
Biology
Molecular Basis of Inheritance
Write short notes on the following:
(i) Filariasis
(ii) Polyembryony
UP Board XII - 2023
UP Board XII
Biology
Human health and disease
Describe the principle of immunization in brief. Add a note on passive immunization.
UP Board XII - 2023
UP Board XII
Biology
Human health and disease
With the help of two suitable examples, explain the vegetative propagation in plants.
UP Board XII - 2023
UP Board XII
Biology
Reproduction in Plants
Briefly describe the steps of production of human insulin using rDNA technology.
UP Board XII - 2023
UP Board XII
Biology
Applications of Biotechnology
What is restriction endonuclease? Give any two examples.
UP Board XII - 2023
UP Board XII
Biology
Biotechnology
Define immunity. Differentiate between innate and acquired immunity with suitable examples.
UP Board XII - 2023
UP Board XII
Biology
Human health and disease
Define sewage. Describe the biological treatment of sewage in brief.
UP Board XII - 2023
UP Board XII
Biology
Environmental Science
Explain the type of pollination in cleistogamous flowers.
UP Board XII - 2023
UP Board XII
Biology
sexual reproduction in flowering plants
Give any two causes of biodiversity loss.
UP Board XII - 2023
UP Board XII
Biology
Biodiversity and Conservation
Define the term 'health'. Mention any two important factors to maintain good health.
UP Board XII - 2023
UP Board XII
Biology
Human health and disease
Briefly explain Gause's competitive exclusion principle.
UP Board XII - 2023
UP Board XII
Biology
Organisms and Populations
Define allele. Comment upon multiple allelism with examples.
UP Board XII - 2023
UP Board XII
Biology
Genetics
Briefly explain the inheritance of sex-linked recessive character in humans.
UP Board XII - 2023
UP Board XII
Biology
Principles of Inheritance and Variation
Comment upon the xerophytic adaptation in desert plants.
UP Board XII - 2023
UP Board XII
Biology
Evolution and Adaptation
What is hybridization? Describe the process and importance of artificial hybridization in brief.
UP Board XII - 2023
UP Board XII
Biology
Food Technology
According to Allen's rule, mammals in colder climates generally have:
UP Board XII - 2023
UP Board XII
Biology
Evolution and Adaptation
The phenotypic ratio of a Mendelian dihybrid cross is:
UP Board XII - 2023
UP Board XII
Biology
Principles of Inheritance and Variation
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