Discussion
Club shape root in human hair is present in which of the following growth phase ?
Answer: C
A club-shaped root is found in the telogen phase.
In telogen, the resting phase, growth has stopped and the root becomes a hard, bulb-like club with no surrounding tissue. Such hairs are shed naturally, so most hairs found at scenes are telogen hairs. Because the club has little or no nuclear material, they are poor sources of nuclear DNA.
Anagen (growing) hairs have a large, pigmented root often with a sheath of tissue and are typically pulled out by force. Catagen hairs are in transition, with an elongated, tapering root that is only beginning to form a club, so neither anagen nor catagen alone gives a fully clubbed root.
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