MCQ
The regulatory genes are located
- AAlong with the structural genes
- BIn between operator and the structural genes
- CIn the middle of structural genes
- ✓At the end of structural genes
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| Column$-I$ | Column$-II$ |
| $(a)$ Placenta | $(i)$ Androgens |
| $(b)$ Zona pellucida | $(ii)$ Human Chorionic Gonadotropin $(hCG)$ |
| $(c)$ Bulbo$-$urethral glands | $(iii)$ Layer of the ovum |
| $(d)$ Leydig cells | $(iv)$ Lubrication of the Penis |
$(a)\quad(b)\quad(c)\quad(d)$
$R $ : It has enhanced nutritional content of vitamin $A.$
$(1)$ Many members of the genus glomusinvolved micorrhiza
$(2)$ It is responsible for all mineralsabsorption from the soil
$(3)$ Such associations show benefitsagainst draught and salinity in plants
$(4)$ Micorrhiza is a symbiotic relation ofalgae and plants