- AOvulation
- BMaturity of Ovum
- ✓Fertilization
- DNone of these
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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
$(a)$ Euchromatin is loosely packed chromatin
$(b)$ Heterochromatin is transcriptionally active
$(c)$ Histone octomer is wrapped by negatively charged DNA in nucleosome
$(d)$ Histones are rich in lysine and arginine
$(e)$ A typical nucleosome contains $400\,bp$ of DNA helix
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