MCQ
In angiosperms, the oospore on development produces
- ASeed
- ✓Embryo
- CProtonema
- DEndosperm
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| Column $- I$ | Column $- II$ |
| $(A)$ Gene therapy | $(1)$ Effort to fix functional gene |
| $(B)$ Humulin | $(2)$ A single-stranded $DNA$ or $RNA$ tagged with aradioactive molecule |
| $(C)$ Probe | $(3)$ Diagnostic test |
| $(D)$ ELISA | $(4)$ Diabetes |
| Column $- I$ | Column $- II$ |
| $(1)$ Imbricate | $(P)$ Gulmohur |
| $(2)$ Velvet | $(Q)$ Cotton |
| $(3)$ Twisted | $(R)$ Caltrops |
| $(S)$ Pea |
$I.$ Chemical fertilizers cause pollution of water bodies as well as groundwater, besides getting stored in crop plants. Therefore, environmental scientists are pressing for a switch over to organic farming.
$II.$ Organic farming is a form of agriculture that relies on techniques such as crop rotation, green manure, compost and biological pest Select the correct statement
$I.$The portion of the spectrum between $300-500 \;nm$ is also referred to as Photosynthetically Active Radiation $(PAR)$.
$II.$ Magnesium, calcium and chloride ions play prominent roles in the photolysis of water:
$III.$ In cyclic photophosphorylation, oxygen is not released (as there is no photolysis of water) and $NADPH$ is also not produced.