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CELLULAR TIME BOMB Dr : Hussein Sabit Eman Mohamed T E L O M E R E S

Telomeres

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Page 1: Telomeres

CELLULARTIME

BOMB

Dr : Hussein Sabit

Eman Mohamed

TELOMERES

Page 2: Telomeres

structure# Repeating DNA sequence . i.e , ( TTAGGG ) at the tip of chromosome .

# telomere length about 15000 Base pairs .

.

Page 3: Telomeres

cont

# composed of double strands of DNA , Telomere overhangs is single strands .

Page 4: Telomeres

FUNCTION# cap function.

# control cell division.

# hold some secrets to how we age and get cancer.

Page 5: Telomeres

SHORT TELOMERES

Page 6: Telomeres

TELOMERES & AGING

# The length of telomeres is the most accurate indicator of the speed the person is aging.

# It is not yet known whether shorter telomeres are just a sign of aging – like gray hair – or contribute aging .