PATHOLOGY

Detailed explanation-1: -In humans and most animals, the male gamete is a sperm cell which has several important functions. The sperm is motile and depends on a flagellum for its motility.

Detailed explanation-2: -Embryonic stem cells ESCs are considered immortal as they can be propagated and maintained in an undifferentiated state indefinitely. These stem cells have the highest potential to regenerate and repair diseased tissue and organs in the body.

Detailed explanation-3: -The process of differentiation occurs when different genes in the genome are expressed or repressed. This process occurs through the signal transduction pathway, a way of transmitting extracellular signals to cause changes in cell function.

Detailed explanation-4: -We learned in biology class that every cell in the body has the same DNA. Whether a heart cell, skin cell or muscle cell-they all read from the same genetic blueprint.