In a typical angiosperm embryo sac, the number of haploid nuclei is: MCQ with Answer and Explanation

Explanation:
Transgenic organisms (plants or animals) have been genetically modified to contain and express foreign DNA (a transgene) from another species. Cloning is a technique used to produce genetically identical copies of a biological entity, such as a cell, organism, or DNA sequence. Gene therapy is an emerging technique aimed at treating or curing genetic diseases by introducing functional genes, but it is still largely experimental and does not currently cure all genetic diseases. Thus, statements 1 and 2 are correct.

Explanation:
The terminal (apical) bud, containing the shoot apical meristem, is covered by young leaf primordia, which protect the delicate meristematic tissue. The root cap protects the root apical meristem. Leaf primordia develop into leaves. Terminal buds are often dormant in winter.

Explanation:
The beta cells of the pancreatic islets of Langerhans produce insulin, which lowers blood glucose by promoting cellular uptake and glycogen synthesis. The liver stores glucose, the spleen filters blood, the thyroid regulates metabolism.