Evolution — BIOLOGY STD 12 Science — Question

In an ovule meiotic takes place in :

A doctor while operating on an HIV(+)ve patient accidentally cuts himself with a scalpel. Suspecting himself to have contracted the virus which test will he take to rule out/confirm his suspicion?

In an inducible operon, the genes are

In which layer of atmosphere ozone is maximum concentrated?

Choose the wrong statement

Mating between two individuals differing in genotye to produce genetic variation is called

Vesicular arbuscular mycorrhizae (VAM) are important in:

Which of the following group represents minimum species diversity among vertebrates?

If a haemophilic man marries a woman carrier (heterozygous) for haemophilia, what would be the possibility that their daughter would be haemophilic