MCQ
The term 'molecular scissors' generally refers to:
- ✓$\text{DNA}$ polymerases
- B$\text{RNA}$ polymerases
- CRestriction endonucleases
- D$\text{DNA}$ ligases
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$(a)$ Population density is necessarily measured in numbers
$(b)$ Tiger census is often based on pug marks and fecal pellets
$(c)$ Biomass is not a meaningful measure to know population size.
$(d)$ Size of a population for any species is not a static parameter
$I.$ Species diversity increases as we move away from the equator towards the poles.
$II.$ Stellar's sea cow and passenger pigeon got extinct due to overexploitation by man.
$III.$ Lantana and Eichhornia are invasive weed in India.
$IV$. The historic convention on biological diversity was held in $1992 .$
Choose the option containing correct statements.