Question
What is meant by palaeontological evidences ?
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| (1) Column A (Asexual) | Column B (Examples) |
| (1) Spore formation | (a) Spirogyra |
| (2) Conidia formation | (b) Yeast |
| (3) Fragmentation | (c) Chlamydomonas |
| (4) Budding | (d) Penicillium |
(a) What is polymerase chain reaction (PCR)?
(b) Describe three steps involved in mechanism of PCR.
| Type | Opioids | Cannabinoids | Cocaine | Hallucinogens |
| Source | ________ | ________ | Atropa bellodona and Datura | |
| Example | ________ | ________ | Cocaine | ________ |
| Column I (Biofortified crop) | Column II (Nutrient Enrichment) |
| (1) Maize | (a) Five times more iron |
| (2) Rice | (b) Twice the amount of lysine and tryptophan |
| (3) Wheat Atlas-66 | (c) Enriched in vitamin A and minerals |
| (4) Carrots, spinach | (d) High protein content |