Match the terms in List-I with their correct descriptions in List-II:
\[ \begin{array}{|l|l|} \hline \textbf{List-I} & \textbf{List-II} \\ \hline \text{A) Vivipary} & \text{I) Adaptation to lower environmental stress by germinating seeds while still attached to the parent plant} \\ \text{B) Parthenogenesis} & \text{IV) Development of an embryo from an unfertilized female gamete (asexual reproduction)} \\ \text{C) Meiocytes} & \text{III) Diploid cells specialized to undergo meiosis (e.g., spermatocytes, oocytes)} \\ \text{D) Perennials} & \text{II) Bamboo flowering once at the end of its life cycle (monocarpic perennial)} \\ \hline \end{array} \]
The correct matching is:
- A-IV: Vivipary (seed germination on parent plant) is unrelated to unfertilized embryos; it’s a stress adaptation.
- B-III: Parthenogenesis explicitly involves unfertilized egg development (e.g., honeybee drones).
- C-I: Meiocytes are diploid germ cells that enter meiosis, not gametes.
- D-II: Perennials like bamboo flower terminally (monocarpic).
| List I | List II |
|---|---|
| A. Scutellum | II. Cotyledon of Monocot seed |
| B. Non-albuminous seed | IV. Rudimentary cotyledon |
| C. Epiblast | III. Groundnut |
| D. Perisperm | I. Persistent nucellus |
Match the following varieties with their pest/disease resistance:
| List I (Variety) | List II (Pest/Disease) | ||
|---|---|---|---|
| A | Pusa Gaurav | I | Nematodes |
| B | Pusa Sem 2 (Bean) | II | Stem and fruit borer |
| C | Pusa Sawani (Okra) | III | Jassids, aphids, fruit borer |
| D | Parbhani Kranti (Okra) | IV | Yellow Mosaic Virus |
Find the variance of the following frequency distribution:
| Class Interval | ||||
| 0--4 | 4--8 | 8--12 | 12--16 | |
| Frequency | 1 | 2 | 2 | 1 |