List of top Questions asked in UP Board XII- 2026

Differentiate between m-RNA and t-RNA.
Write a note on Darwin's Finches.
Which ecological pyramid is always upright?
What is the difference between food chain and food web?
The enzyme that cuts DNA at a specific location is:
Which is the termination codon on mRNA?
Which hormone is secreted from the corpus luteum?
What is the full name of IVF?
Energy flow in the ecosystem is:
Who proposed the theory of 'Natural Selection'?
Pollination occurs in Vallisneria by:
Comment upon the following: (i) Biodiversity hotspots (ii) Productivity.
Describe the different population interactions with suitable examples.
Write notes on the following: (i) Chromosomal aberrations (ii) Pedigree analysis.
Explain the application of biotechnology in agriculture.
Define oogenesis. Describe the process of oogenesis with a diagram.
Write explanatory notes on the following: (i) Sterilization (ii) Infertility.
Describe the different types of ecological pyramids in brief.
Describe the technique and application of DNA fingerprinting.
What is sewage? Describe the biological treatment of sewage in short.
Comment upon the following: (i) Cloning (ii) Transgenic plants.
Comment upon the following: (i) Addiction (ii) Autoimmune disease.
What are lymphocytes? Comment upon two special types of lymphocytes present in our body.
What is cancer? Mention its prevention and cure.
Explain transfer RNA (tRNA) as an adaptor molecule.