Which of the following is a protein deficiency disease characterized by edema and an enlarged liver? MCQ with Answer and Explanation

Explanation:
Ethylene is a gaseous hormone that accelerates ripening, promotes leaf and fruit abscission, and senescence. Auxin and cytokinin promote growth, gibberellin elongation. Ethylene is used commercially for fruit ripening.

Explanation:
Innate (natural) immunity is the non-specific defense mechanism present from birth, including physical barriers like skin and chemical barriers like stomach acid. Acquired (adaptive) immunity is highly specific and develops after the body is exposed to a specific pathogen or antigen, involving the production of antibodies and memory cells. Vaccines provide artificial immunity (specifically, artificial active immunity), not natural immunity, which is acquired through actual infection or from mother to child. Thus, statements 1 and 2 are correct.

Explanation:
Germline mutations can be passed to offspring. Mutations can be spontaneous or induced; silent mutations do not change the amino acid sequence.