Plant Water Relation — BIOLOGY STD 12 Science — Question

Expand ELISA:

1. Enzyme linked inductive assay
2. Enzyme linked ion sorbent assay
3. Enzyme linked immunosorbent assay
4. None of the above

Give some reasons for infertility among young couples.

Name the enzyme that joins the small fragments of DNA of a lagging strand during DNA replication.

Name the Following : Common breeds of cattle and poultry in the farms, found in your area.

What are ribozymes?

Name a test used for confirmation of typhoid.

In which year, a national level approach to build up a reproductively healthy society was taken up in our country?

Name a human disease, its causal organism, symptoms (any three) and vector spread by intake of water and food contaminated by human faecal matter.

How long it has taken for Biodiversity to form on the earth?

Name the part of gynoecium that determines the compatibility of pollen grains.