The type of immunity that occurs after recovery from an infection is: MCQ with Answer and Explanation

Explanation:
Vitamin A is essential for the synthesis of rhodopsin. Deficiency leads to impaired dark adaptation (night blindness) and eventually xerophthalmia. Beri-beri is B₁ deficiency, pellagra B₃, scurvy vitamin C.

Explanation:
Cross-pollination (allogamy) involves transfer between genetically different plants of the same species, promoting genetic variation. Self-pollination occurs within the same flower or plant. Fertilization is gamete fusion, dispersal is seed/fruit spread. Agents of cross-pollination include wind, insects, water, birds.

Explanation:
Carolus Linnaeus, a Swedish botanist, formalized the system of binomial nomenclature for naming organisms. Louis Pasteur made immense contributions to microbiology, including the development of the first effective vaccine against rabies. Gregor Mendel is the father of genetics, known for his laws of inheritance; the structure of DNA was discovered by Watson and Crick. Thus, statements 1 and 2 are correct.