n.
Either of the two daughter strands of a replicated chromosome that are joined by a single centromere and separate during cell division to become individual chromosomes.
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chromatid
American Heritage Dictionary:
chro·ma·tid |
n.
Either of the two daughter strands of a replicated chromosome that are joined by a single centromere and separate during cell division to become individual chromosomes.
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Oxford Dictionary of Biochemistry:
chromatid |
one of the two daughter strands of a duplicated chromosome that become apparent between early prophase and metaphase in mitosis and between diplotene and second metaphase in meiosis.
| chromatic, chromaffin tissue, chromaffin | |
| chromatin, chromatin body, chromatin compaction |
Saunders Veterinary Dictionary:
chromatid |
Either of two parallel filaments joined at the centromere which make up a chromosome, and which divide in cell division, each going to a different pole of the dividing cell and each becoming a chromosome of one of the two daughter cells.
- sister c. — a chromatid formed by a replicating chromosome during interphase; because they are derived from the one homolog and joined at the center they are exact copies of each other.
Random House Word Menu:
categories related to 'chromatid' |
- Genetics, Heredity, and Evolution - chromatid: individual strand of double-stranded chromosome in mitosis
Wikipedia on Answers.com:
Chromatid |
A chromatid is one of the two identical copies of DNA making up a duplicated chromosome, which are joined at their centromeres, for the process of cell division (mitosis or meiosis). They are called sister chromatids so long as they are joined by the centromeres. When they separate (during anaphase of mitosis and anaphase 2 of meiosis), the strands are called daughter chromosomes.
In other words, a chromatid is "one-half of a replicated chromosome".[1] It should not be confused with the ploidy of an organism, which is the number of homologous versions of a chromosome.
Dyad
A dyad is a pair of sister chromatids. This occurs in prophase I of meiosis. After DNA replication, the two sister chromatids align side-by-side and appear to have an undivided centromere, in contrast to mitosis, in which each chromatid appears to have its own separate centromere.
The term dyad can also be used to describe protein morphology.[2]
References
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Look up chromatid in Wiktionary, the free dictionary. |
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
Related topics:
 | non-sister chromatid |
| acentric |
| acrocentric |
Related answers:
 | Why use non-sister chromatids and not sister chromatids in crossover? Read answer... |
| What is the function of chromatids? Read answer... |
| When do chromatids separate? Read answer... |
Help us answer these:
 | What are sister chromatids and when do sister chromatids separte? |
| Why use nonsister chromatids and not sister chromatids? |
| What are chromatids and what holds two chromatids together? |
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Copyrights:
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 | American Heritage Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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Oxford Dictionary of Biochemistry. Oxford University Press. Oxford Dictionary of Biochemistry and Molecular Biology © 1997, 2000, 2006 All rights reserved. Read more | |
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| Saunders Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| Random House Word Menu. © 2010 Write Brothers Inc. Word Menu is a registered trademark of the Estate of Stephen Glazier. Write Brothers Inc. All rights reserved. Read more |
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| Wikipedia on Answers.com. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Chromatid. Read more |
- What are chromatids?
- What is chromatid?
- What is a chromatid?
- What is chromatids?
- Where are chromatids attached?
- What is a chromatid made of?
- When is a chromatid a chromatid?
- IS sister chromatids the same as chromatid arms?
- What chromatids and sister chromatids look like?
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Mentioned in
- –id (suffix)
- spindle
- Mosaicism (genetics)
- crossing over (in genetics)
- chromosome (material – in anatomy)
- Sister chromatid exchange
- Mitosis (cell biology)
- Pseudogenes
- Chromosomal Banding
- Metacentric
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