- ABioinsecticide
- BBioherbicide
- ✓Endomycorrhiza
- DEctomycorrhiza
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| Column $-I$ | Column $-II$ |
| $a.$ Solid symbol | $(i)$ Carrier of sex linked trait |
| $b.$ Horizontal line between symbols | $(ii)$ Offspring |
| $c.$ Horizontal line above the symbols | $(iii)$ Trait to be studied |
| $d.$ Dot in centre | $(iv)$ Parents |
A drug used for ___$A$___ patients is obtained from a species of the organism ___$B$___ .
The one correct option for the two blanks is
| Column I | Column II | Column III |
| (a) Ichthyophis | Terrestrial | Reptile |
| (b) Limulus | Body covered by chitinous exoskeleton | Pisces |
| (c) Adamsia | Radially symmetrical | Porifera |
| (d) Petromyzon | Ectoparasite | Cyclostomata |
$R :$ These have aglomerular kidney $i.e.$, no filtration occurs and tubular secretion is the only way of excretion.
$I.$ Antibiotics are chemical substances produced by some microorganisms which can kill or retard the growth of other disease-causing microorganisms
$II.$ Penicillin is the first antibiotic discovered by Alexander Fleming $(1928),$ while working on bacterium Staphylococcusaureus
$III.$ The function of penicillin as an antibiotic was established by Ernst chain and Howard Florey
Which of the statement given above are correct?