telomere

[ tel-uh-meer, tee-luh‐ ]

/ ˈtɛl əˌmɪər, ˈti lə‐ /

noun

the segment of DNA that occurs at the ends of chromosomes.

Origin of telomere

First recorded in 1935–40

Words nearby telomere

telodynamic, Teloekbetoeng, telogen, telolecithal, telomerase, telomere, telomerization, telophase, telos, telotaxis, telpher

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for telomere

Harley, 58, is a pioneer in telomere research, and a rigorous scientist.
New Anti-Aging Pill Under Fire|Thea Singer|April 11, 2011|DAILY BEAST
But it's only now that the medical community is closing in on telomere testing for the average patient.
The New Science of Reverse Aging|Danielle Friedman|November 7, 2010|DAILY BEAST

British Dictionary definitions for telomere

telomere

/ (ˈtɛləˌmɪə) /

noun

genetics either of the ends of a chromosome

Word Origin for telomere

C20: from Greek telos end + meros part

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for telomere

telomere

[ (tel-uh-meer) ]

The long end sequences of a DNA strand occurring at the tip of the chromosomes; a type of repetitive DNA that usually consists of one hundred to fifteen hundred copies of a single DNA sequence.

notes for telomere

During DNA replication, small parts of the telomere are lost with each cycle. Scientists think that this loss may be related to the aging process.

Medical definitions for telomere

telomere

[ tĕl′ə-mîr′, tē′lə- ]

n.

Either end of a chromosome; a terminal chromosome.

Scientific definitions for telomere

telomere

[ tĕl′ə-mîr′, tē′lə- ]

Either of the sections of DNA occurring at the extreme ends of each chromosome in a eukaryotic cell. Telomeres consist of highly repetitive sequences of DNA that do not code for proteins, but function as caps to keep chromosomes from fusing together. The length of the telomere influences the stability of genetic information just interior of the telomere, since the nucleotide sequences at the ends of a chromosome are not copied by DNA polymerase. Successive copying can thus shorten telomeres, sometimes to the point that functional genes near the telomeres are lost, and this may play a role in cellular senescence and age-related diseases. In germ cells, stem cells, and some cancer cells, shortened telomeres can be extended by the enzyme telomerase, thus keeping both the telomeres and the genes near them functioning. Most somatic cells do not express telomerase, and the shortening of telomeres during each round of cell division may be part of the natural aging of cells.

单词	telomere
释义	telomere [ tel-uh-meer, tee-luh‐ ] / ˈtɛl əˌmɪər, ˈti lə‐ / noun the segment of DNA that occurs at the ends of chromosomes. Origin of telomere First recorded in 1935–40 Words nearby telomere telodynamic, Teloekbetoeng, telogen, telolecithal, telomerase, telomere, telomerization, telophase, telos, telotaxis, telpher Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for telomere Harley, 58, is a pioneer in telomere research, and a rigorous scientist. New Anti-Aging Pill Under Fire\|Thea Singer\|April 11, 2011\|DAILY BEAST But it's only now that the medical community is closing in on telomere testing for the average patient. The New Science of Reverse Aging\|Danielle Friedman\|November 7, 2010\|DAILY BEAST British Dictionary definitions for telomere telomere / (ˈtɛləˌmɪə) / noun genetics either of the ends of a chromosome Word Origin for telomere C20: from Greek telos end + meros part Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cultural definitions for telomere telomere [ (tel-uh-meer) ] The long end sequences of a DNA strand occurring at the tip of the chromosomes; a type of repetitive DNA that usually consists of one hundred to fifteen hundred copies of a single DNA sequence. notes for telomere During DNA replication, small parts of the telomere are lost with each cycle. Scientists think that this loss may be related to the aging process. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for telomere telomere [ tĕl′ə-mîr′, tē′lə- ] n. Either end of a chromosome; a terminal chromosome. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for telomere telomere [ tĕl′ə-mîr′, tē′lə- ] Either of the sections of DNA occurring at the extreme ends of each chromosome in a eukaryotic cell. Telomeres consist of highly repetitive sequences of DNA that do not code for proteins, but function as caps to keep chromosomes from fusing together. The length of the telomere influences the stability of genetic information just interior of the telomere, since the nucleotide sequences at the ends of a chromosome are not copied by DNA polymerase. Successive copying can thus shorten telomeres, sometimes to the point that functional genes near the telomeres are lost, and this may play a role in cellular senescence and age-related diseases. In germ cells, stem cells, and some cancer cells, shortened telomeres can be extended by the enzyme telomerase, thus keeping both the telomeres and the genes near them functioning. Most somatic cells do not express telomerase, and the shortening of telomeres during each round of cell division may be part of the natural aging of cells. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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