Chromosome

A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.

Chromosomes vary widely between different organisms. The DNA molecule may be circular or linear, and can be composed of 100,000 to 10,000,000,000nucleotides in a long chain. Typically, eukaryotic cells (cells with nuclei) have large linear chromosomes and prokaryotic cells (cells without defined nuclei) have smaller circular chromosomes, although there are many exceptions to this rule. Also, cells may contain more than one type of chromosome; for example, mitochondria in most eukaryotes and chloroplasts in plants have their own small chromosomes.

In eukaryotes, nuclear chromosomes are packaged by proteins into a condensed structure called chromatin. This allows the very long DNA molecules to fit into the cell nucleus. The structure of chromosomes and chromatin varies through the cell cycle. Chromosomes are the essential unit for cellular division and must be replicated, divided, and passed successfully to their daughter cells so as to ensure the genetic diversity and survival of their progeny. Chromosomes may exist as either duplicated or unduplicated. Unduplicated chromosomes are single linear strands, whereas duplicated chromosomes contain two identical copies (called chromatids) joined by a centromere.

Archaeologists Find Skeletons, Gold Coins In Buried Pompeii Shop

Edit WorldNews.com 24 Jun 2016

In the workshop was an oven that archaeologists think might have been used to make bronze objects.The excavation of that and a second ancient shop started in May near a necropolis in the Herculaneum port area. Archaeologists are puzzling over what kind of business the second shop did ... tomb of an adult, complete with funerary vases ... Pompeii and nearby Herculaneum were ancient Roman towns....

photo: NASA / JPL-Caltech/MSSS

File - This low-angle self-portrait of NASA's Curiosity Mars rover shows the vehicle above the "Buckskin" rock target, where the mission collected its seventh drilled sample.

NASA Curiosity rover discovers unexpected mineral on Mars

Edit Deccan Chronicle 26 Jun 2016

NASA's Curiosity rover has discovered an unexpected mineral in a rock sample on Mars, a finding that suggests the red planet hosted explosive volcanoes during its evolution. The Mars Science Laboratory rover, Curiosity, has been exploring sedimentary rocks within Gale Crater since landing in August 2012 ... ‘On Earth, tridymite is formed at high temperatures in an explosive process called silicic volcanism ... ....

photo: AP / Lefteris Pitarakis

File - Some of the four Kenyans who are taking The British government to court, with left-right; Wambugu Wa Nyingi, Jane Muthoni Mara, Paulo Nzili, outside the Royal Courts of Justice, in central London, Thursday, April 7, 2011, as four elderly Kenyans who claim that they were severely beaten and tortured by British officers during an anti-colonial rebellion in the 1950s are taking their case to court in London.

Kenyan, 94, testifies about killings by British soldiers

Edit The Guardian 26 Jun 2016

Court in central London hears witness recall being beaten and seeing companions shot dead during Mau Mau insurgency. @owenbowcott. Nelson Njao Munyaka witnessed two companions being shot dead by British soldiers; he carried their corpses to a white settler’s farm in Kenya’s Rift Valley. Both victims had taken the Mau Mau oath and been trying to escape ... Related. UK to compensate Kenya's Mau Mau torture victims ... Twitter ... ....

photo: AP / Hadi Mizban

Iraqi Counterterrorism force advance their positions in Fallujah, Iraq, Wednesday, June 22, 2016. Pockets of Islamic State fighters continue to hold neighborhoods along the north and west of the city

Iraqi commander: Fallujah 'fully liberated' from IS

Edit Boston Herald 26 Jun 2016

BAGHDAD — A senior Iraqi commander declared that the city of Fallujah was "fully liberated" from Islamic State group militants on Sunday, after a more than monthlong military operation. Iraqi troops have entered the northwestern al-Julan neighborhood, the last area of Fallujah to remain under IS control, the head of the counterterrorism forces in the operation, Lt. Gen. Abdul-Wahab al-Saadi, told The Associated Press ... figures ... ___ ... ....

photo: AP / Tim Ireland

Demonstrators opposing Britain's exit from the European Union in Parliament Square following yesterday's EU referendum result hold a protest in London, Saturday, June 25, 2016.

Can wounds ever heal in divided UK?

Edit CNN 26 Jun 2016

(CNN)The referendum vote to quit the European Union has left the United Kingdom a more divided society than ever before. In fifty years reporting politics I have never encountered such shock and anger. the morning the result was announced my phone was red hot, mostly with younger friends convinced the older generation had, through indulging their prejudices, sold them down the river ... It's Brexit ... by Donald Trump. Read More ... future ... ....

search tools

You can search using any combination of the items listed below.

Language:

Sort type:

Arrived Within:

Search Type:

Say no to marriage between relatives

Edit Khaleej Times 26 Jun 2016

A newly released study published by IVF Fertility Middle East has revealed that consanguineous couples (those marrying first- or second-degree relatives) are a major cause of a high infertility in the Gulf region ... According to the study, parental consanguinity has been associated with both male and female infertility in multiple cases ... Among the males, it causes chromosome Y abnormalities, leading to genetic sperm defects ... ....

What if you could live forever?

Edit New York Post 26 Jun 2016

“It is a common belief that aging is inevitable and universal. Nothing could be further from the truth.”. That’s the eye-popping claim from the scientists Josh Mitteldorf and Dorion Sagan in their new book, “Cracking the Aging Code. The New Science of Growing Old — And What It Means for Staying Young .” ... There are also treatments that target telomeres, the sequences at the ends of chromosomes that get shorter every time the cell divides....

Drug resistance: A dent in the anti-malaria armour

Edit The Hindu 25 Jun 2016

The use of artemisinin came into the picture at a critical time when resistance to commonly used chloroquine was making malaria treatment highly inefficient ... Mutations in specific regions of the parasite’s kelch gene on chromosome 13 (K-13) was found to confer resistance to artemisinin ... A study published on June 23, 2016 in The New England Journal of Medicine has done precisely this and the results are quite positive ... Menard....

All a plebiscite will do is further divide us

Edit Sydney Morning Herald 25 Jun 2016

So, there are fears that should the Liberal government be re-elected, its proposed plebiscite on same sex marriage may incite ugly debate. Well, no shit Sherlock! Of course there will be hateful discussion. There was never a chance it wouldn't be repellent when what is at play is amoral at its core ... The subject of prejudice never is ... Advertisement ... It judges the worthiness of loving parents who happen to share the same set of chromosomes....

Talking About Stillbirth Prevents Storing Unhelpful Feelings Inside and the Potential Risk of Depression and ...

Edit Huffington Post 24 Jun 2016

In 2003 my life changed forever. Our first child Liam had been born successfully in 2002 and rather unexpectedly 3 months later we found out that we were expecting again ... They attempted to deliver but clearly realised something was not right and rushed straight to the hospital, where I met Sian ... Unfortunately she had Edwards Syndrome, which is a chromosomal abnormality caused by the presence of all, or part of, an extra 18th chromosome....

Modular targeting elements in the Mps1 TPR domain [Cell Biology]>

Edit PNAS 24 Jun 2016

Faithful segregation of chromosomes to two daughter cells is regulated by the formation of a bipolar mitotic spindle and the spindle assembly checkpoint, ensuring proper spindle function. Here we show that the proper localization of the kinase Mps1 (monopolar spindle 1) is critical to both these processes. Separate elements in... ....

CombiMatrix Study Published in Genetics in Medicine Establishes the Superior Diagnostic Value of Microarray Analysis ...

Edit Stockhouse 24 Jun 2016

IRVINE, Calif., June 24, 2016 (GLOBE NEWSWIRE) -- CombiMatrix Corporation (NASDAQ.CBMX), a molecular diagnostics company specializing in DNA-based reproductive health and pediatric testing services, announces the publication of data from a large retrospective study demonstrating a high success rate and superior diagnostic power of chromosomal microarray analysis for recurrent pregnancy loss testing....

CombiMatrix Study Published in Genetics in Medicine Establishes the Superior Diagnostic Value of Microarray Analysis over Karyotyping for Recurrent Pregnancy Loss Testing (CombiMatrix Corporation)

Edit Public Technologies 24 Jun 2016

German Lawmaker Addresses 60 Genders (Video)

Edit Opposing Views 24 Jun 2016

A conservative politician in Brandenburg, Germany, recently voted against a gender diversity bill, but before announcing his vote, he addressed 60 different genders (video below) ... "Dear bearers of the XX or XY chromosomes which you were all born with, live with and will die with no matter what medical procedures, injections or operations you undergo, which clothes you wear, who you would like to fool (including yourselves)...". ....

2016-2020 EU5 Pap Smear/HPV Market, Industry Key Trends, Demand, Growth, Size, Review, Share, Analysis

Edit Community news 24 Jun 2016

Summary of the report. ... The report examines market applications of DNA probes, biochips/microarrays, monoclonal antibodies, immunoassays, IT, chromosome analysis, and other technologies; profiles leading suppliers and recent market entrants developing innovative technologies and products; and identifies alternative market penetration strategies and entry barriers/risks ... About us. ... We cover more than 15 industry verticals being ... Mayur S....

Gaming with a purpose (UC Davis Health System)

Edit Public Technologies 24 Jun 2016

(Source. UC Davis Health System). FEATURE . Posted June 23, 2016. Children with 22q11.2 deletion syndrome and other neurodevelopmental disorders may benefit from a video game now in development at the UC Davis MIND Institute ... [Transcript of video below]. 'I hope that he is able to get the funding to make it a bigger video game ... A great kid.'. '22q deletion syndrome is caused by a deletion on the 22nd chromosome ... That would be awesome ... (noodl....

Biologists Use Federal Grant to Advance Epigenetics (Syracuse University)

Edit Public Technologies 23 Jun 2016

Chromatin, which condenses into chromosomes during cell division, is composed of DNA strands that are wrapped around groups of small proteins called histones ... elegans, the natural target for meiotic silencing is the male X chromosome; however, other chromosomes are targeted under certain conditions, such as when chromosome rearrangements are present....

Why Do Women Not Want To Be Feminists?

Edit Huffington Post 23 Jun 2016

Feminism. Fem-i-nism. "Feminism". feminism. I don't know what connotations the word brings to your head, but to me, it brings forth only one. A person, not a woman, but a person, who is a believer that there should be the social, economic and political equality of the sexes ... At this point out of fear that I would be shot by Emma Watson for even looking at a Y chromosome, I took the difficult decision to swallow my cyanide capsule ... oh." ... ....

'Chromosome' is featured as a movie character in the following productions:

L'amour en papier (1966)

Chromosome

ALBUMS

DMT Cowboys

Trance Scandinavian Express

The Genome Project

Chromosome

Archaeologists Find Skeletons, Gold Coins In Buried Pompeii Shop

NASA Curiosity rover discovers unexpected mineral on Mars

Kenyan, 94, testifies about killings by British soldiers

Iraqi commander: Fallujah 'fully liberated' from IS

Can wounds ever heal in divided UK?

You can search using any combination of the items listed below.

Say no to marriage between relatives

What if you could live forever?

Drug resistance: A dent in the anti-malaria armour

All a plebiscite will do is further divide us

Talking About Stillbirth Prevents Storing Unhelpful Feelings Inside and the Potential Risk of Depression and ...

Modular targeting elements in the Mps1 TPR domain [Cell Biology]>

CombiMatrix Study Published in Genetics in Medicine Establishes the Superior Diagnostic Value of Microarray Analysis ...

CombiMatrix Study Published in Genetics in Medicine Establishes the Superior Diagnostic Value of Microarray Analysis over Karyotyping for Recurrent Pregnancy Loss Testing (CombiMatrix Corporation)

German Lawmaker Addresses 60 Genders (Video)

2016-2020 EU5 Pap Smear/HPV Market, Industry Key Trends, Demand, Growth, Size, Review, Share, Analysis

Gaming with a purpose (UC Davis Health System)

Biologists Use Federal Grant to Advance Epigenetics (Syracuse University)

Why Do Women Not Want To Be Feminists?