MCQ
How many countries pledged their commitment to achieve reduced rate of biodiversity loss by $2010$ in the world summit on sustainable development held in $2002$ in Johamnesberg, South Africa?
- A$180$
- B$200$
- ✓$190$
- D$210$
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$I.$ In Chlorophyceae, the stored food material is starch and the major pigments are chlorophyll-a and chlorophyll - d
$II$. In Phaeophyceae, laminarian is the stored food and major pigments are chlorophyll-a and chlorophyll b
$III$. In Rhodophyceae, floridean starch is the stored food and major pigments are chlorophylla-a,d and phycoerythrin.
Dead animal $\rightarrow$ Blow flymaggots $\rightarrow$ Common frog $\rightarrow$ Snake
| Column - I | Column - II |
| A. Centromere splits and chromatids separate apart | I. Zygotene |
| B. Pairing between homologous chromosomes takes place | II. Point of attachment between homologous chromosome |
| C. Chiasmata | III. Nuclear protein complex that helps in adherence of sister chromatids and then homologous chromosomes. |
| D. Synaptonemal complex | IV. Anaphase |
| A | B | C | D | |
| (a) | III | I | II | IV |
| (b) | I | IV | III | II |
| (c) | IV | I | II | III |
| (d) | II | III | IV | I |