MCQ
The plant body is thalloid in
- ASphagnum
- BSalvinia
- ✓Marchantia
- DFunaria.
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| Column - $I$ | Column - $II$ |
| $(a)$ Bioreactor | $(i)$ Separation of DNA fragments |
| $(b)$ Electrophoresis | $(ii)$ Production of large quantities of products |
| $(c)$ $PCR$ | $(iii)$ Detection of pathogen, based on antigen-antibody reaction |
| $(d)$ $ELISA$ | $(iv)$ Amplification of nucleic acids |
Select the correct option from following:
$(a)$ Heterospory
$(b)$ Endosporic development of gametophyte
$(c)$ Reduced gametophyte
$(d)$ Localization of sporangium bearing appendages in strobili
$(e)$ Unisexual gametophytes
$(f)$ Fertilization with the help of water
$I.$ The bacteria Bacillusthuringiensis $(B t)$ are used to control butterfly catterpillers
$II.$ Fresh spores of $B t$ are mixed with water and sprayed on seeds such as brassicas and fruit trees
$III.$ Insect larvae, after eating these are killed by the toxin released in their gut
$IV.$ Bt toxin genes have been introduced into plants to provide resistance to pests
Which of the statements given above are correct?