List of top Zoology Questions asked in TN HSE+2 (Class XII)

“Alien species invasion is a threat to endemic species” – Substantiate this statement.
Write a note on Protozoan diseases.
Explain the experimental proof of DNA replication by Meselson and Stahl.
Darwin’s finches and Australian marsupials are suitable examples of adaptive radiation – justify the statement.
Difference between Active and Passive immunity.
What are recombinant vaccines? Explain their types.
Write the causes for infertility in males and females.
Name the active chemical found in the medicinal plant Rauwolfia vomitoria. What type of diversity it belongs to?
Mention the symptoms of Phenylketonuria and Down’s Syndrome.
Describe the structure of the human ovum with a neat labelled diagram.
What is SMOG and how is it harmful for us?
Give an account on population regulation.
What is gene "knock out"?
Classify the antibiotics based on their action on bacteria.
Why are sex linked recessive characters more common in the male human beings?
What are the three structural differences between RNA and DNA?
Draw Gemmule in sponges and label the parts.
What are the three strategies to be implemented in India to attain total reproductive health?
What are the gases that cause the Green House Effect?
Differentiate hibernation and aestivation.
Why is it not possible to produce a vaccine against the "common cold"?
What is inhibin?
What is Atavism?
Define gametogenesis.
Define: Zymology