MCQ
: Choose incorrect sentence for $RNA$.
- A$RNA$ is useful for protein synthesis.
- B$t-RNA$ brings amino acids and reads the genetic code.
- ✓$RNA$ contains two polynucleotide chain.
- DDuring translation $r-RNA$ act as catalyst.
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$I.$ In a population, birth rate and death rate refer to per capita births and death respectively
$II.$ In nature, we rarely find isolated single individuals of any species
$III.$ The size of population for any species is stable phenomena
$IV.$ Ecological effects of any factors on a population growth are generally reflected in its size/population density