MICROANATOMY

Detailed explanation-1: -The differentiation of cells during embryogenesis is the key to cell, tissue, organ, and organism identity. Once an egg is fertilized by a sperm, a zygote is formed. The zygote divides into multiple cells in a process known as cleavage, triggering the beginning of embryonic differentiation.

Detailed explanation-2: -Early development is characterized by the rapid proliferation of embryonic cells, which then differentiate to produce the many specialized types of cells that make up the tissues and organs of multicellular animals.

Detailed explanation-3: -Cell differentiation occurs when cells begin to express just specific sections of their DNA, resulting in the development of specialised cell types. Ans: Cell differentiation is a critical process in which a single cell changes over time to produce various organs and tissues, as well as a fully functional mammal.

Detailed explanation-4: -The first embryonic cells that arise from the division of the zygote are the ultimate stem cells; these stems cells are described as totipotent because they have the potential to differentiate into any of the cells needed to enable an organism to grow and develop.