📖 what
What are telomeres?
Human BiologyGenetics
Quick Answer
Telomeres are repetitive DNA sequences at the ends of chromosomes that help protect genetic material during cell division. They typically shorten as cells divide.
The Full Story
Telomeres are caps made of repeating DNA sequences and associated proteins that sit at the ends of chromosomes. In humans, the repeat sequence is TTAGGG, repeated thousands of times. They help prevent chromosomes from fraying or sticking to one another, and they shorten a little each time many cells divide. Telomere maintenance is linked to aging, cancer biology, and the enzyme telomerase.
Key Facts
1.Human telomeres contain TTAGGG repeats
2.Telomeres shorten with many rounds of cell division
3.Telomerase can extend telomeres in some cell types
YouTube Angle
Suggested video title for this topic:
"The tiny chromosome caps that may influence aging"