The corpus luteum secretes which hormone that maintains pregnancy in early stages? MCQ with Answer and Explanation

Explanation:
Agarose gel electrophoresis separates DNA fragments by size under an electric field; smaller fragments migrate faster. PCR amplifies DNA, sequencing determines base order, cloning produces copies.

Explanation:
Transpiration occurs mainly through stomata and is a passive process driven by vapor pressure deficit. It creates transpiration pull, aiding water and mineral transport. Guttation is liquid water loss through hydathodes, bleeding is sap oozing from wounds, exudation is a general term for fluid release.

Explanation:
Rickets, caused by vitamin D deficiency, results in impaired mineralization of growing bones, leading to bowed legs, knock-knees, soft skull, and delayed growth. Scurvy (vitamin C deficiency) causes bleeding gums, pellagra (niacin deficiency) causes dermatitis and diarrhea, and anemia can be due to iron or B₁₂ deficiency.