Sexual Reproduction in Flowering Plants — BIOLOGY STD 12 Science — Question

Reason $(R):$ Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen.

In the light of the above statements, choose the correct answer from the options given below.

$I.$ 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