Zoological parks and botanical gardens are examples of: MCQ with Answer and Explanation

Explanation:
Simple permanent tissues (parenchyma, collenchyma, sclerenchyma) consist of a single cell type. Meristematic tissues are dividing and have thin walls; xylem/phloem are complex; epidermis is dermal.

Explanation:
Sclerenchyma is a simple permanent tissue composed of dead cells with extremely thick, lignified, and pitted cell walls. These cells (fibers and sclereids) are narrow, elongated, and provide rigid mechanical strength, allowing plant parts to withstand bending and pressure. Collenchyma provides flexible support in growing parts, and parenchyma is for storage and photosynthesis (chlorenchyma).

Explanation:
In 1977, Keiichi Itakura and his colleagues at the City of Hope National Medical Center, in collaboration with Herbert Boyer's lab, successfully synthesized the gene for somatostatin (a hypothalamic hormone) and inserted it into E. coli. The bacteria then produced the somatostatin protein. This was a landmark achievement, as it was the first time a synthetic human gene was expressed in a bacterium to produce a functional human hormone, paving the way for the commercial production of insulin and other therapeutics.