List of top Biology Questions asked in UP Board XII

Cannabinoids are obtained from which plant? Highlight its importance.
Write two characteristics of genetic code.
Write a note on Baker Yeast.
Write the name of the indicator of industrial pollution.
How much percentage of energy passes from one trophic level to another trophic level?
Describe exponential growth.
What is nucleoside?
Write the name of any one sex-linked recessive disorder.
Write a short note on Humus.
What is antitoxin?
What is the number of chromosomes in a female honeybee? What is sex determination system called in them?
Which one of the following is not a cause of loss of biodiversity?
Which one of the following is secondary consumer?
Write the full form of abbreviation I.V.F.
Bt cotton formed from:
Tt alleles are pair of:
Define ecosystem. Describe its biotic and abiotic components with diagrams.
Describe different Assisted Reproductive Technologies.
Explain the salient features of the Human Genome.
What is mutualism? Explain it with a suitable example.
Describe the role of microbes in biogas production.
Draw a labelled diagram of a sectional view of the female ovary.
Write a note on linkage.
Describe emasculation.
Write a note on Hardy-Weinberg principle.