The molecule that acts as the universal energy carrier in cells is: MCQ with Answer and Explanation

Explanation:
Recombinant human insulin (Humulin) is produced by genetically engineered Escherichia coli (or yeast) carrying the human insulin gene. Before this, insulin from animal sources was used. The A and B chains of insulin are produced separately and then combined. This was the first genetically engineered pharmaceutical approved for human use (1982).

Explanation:
The anther is the terminal part of the stamen (male reproductive organ) where pollen grains are produced through microsporogenesis. Stigma is the receptive surface for pollen, style connects stigma to ovary. Ovary contains ovules, which develop into seeds after fertilization. The anther has four microsporangia (pollen sacs).

Explanation:
Epithelial tissue forms sheets covering external surfaces (skin) and lining internal organs and cavities. It functions in protection, absorption, secretion, and sensation. Connective tissue supports and binds, muscle contracts, nervous transmits impulses. Epithelial cells are tightly packed with little extracellular matrix.