Evolution — BIOLOGY STD 12 Science — Question

$(a)$. Presence of histones

$(b)$. Nature of histone

$(c)$. Nature of nucleotide

$(d)$. Linear form of genetic material

$I.$ A Dominant allele determines the phenotype when paired with a recessive allele

$II.$ A recessive allele is weaker than a dominant allele

$III.$ A recessive allele do not shows its effects when paired with a dominant allele

$IV.$ A dominant allele is always better for an organism