Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question

$I.$ Cyanobacteria

$II.$ Yeast

$III.$ Symbiotic bacteria

$IV.$ Free living bacteria

Choose the correct option

1. Mosquito bites and injects sporozoites.
2. Mosquitoes take up gametocyctes during blood sucking.
3. Sporozoites reach liver through blood, divide and go to blood.
4. Sporozoites migrate to the salivary gland of mosquito.
5. Parasites reproduce in $\text{RBCs},$ burst and infect new cells.

$I.$ 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