7.3 The eukaryotic chromosome

Whilst the bulk of eukaryotic DNA is packaged by proteins different from those in the eubacterial chromosome, the principles of bending DNA and neutralising the negative charges in its backbone are shared. Eukaryotic cells have considerably larger genomes than do prokaryotes (in most cases over 1000 times the size of the E. coli genome – see Author(s): The Open University

Introduction to the Environmental Change Institute
Introduction to research groups and activities at the Environmental Change Institute.
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8.2 Chromosome scaffolds

Most of the chromosomal DNA chains within the interphase nucleus are believed to be held on a scaffold or backbone structure made from various proteins, with loops of between 20 and 200 kb extruding from attachment sites. This chromosome structure is shown schematically in Figure 40. The scaffold, as well as permitting further compaction, serves to bring the DNA together in organised regions. There are many different protein components of these scaffolds, amongst them DNA topoisomerases.


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Indigenous Peoples' Legal Water Forum 2009 Session 9
A forum to explore the rights of Indigenous peoples to be involved in the governance of freshwater. Law Professor Lee Godden and Director of the Centre for Resources, Energy and Environmental law, University of Melbourne, Australia, "Indigenous Property Rights to Water: Environmental Flows, Cultural Values and Tradeable Property Rights in Australia".
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3.2 Physiological changes during entry

Under normal euthermic circumstances, animals kept in an ambient temperature of 0° C would be expected to show a marked increase in metabolic rate and adaptive thermogenesis. However, the response in hibernators is the opposite. Figure 11 shows data from a woodchuck (Marmota monax; Figure 8) about to enter torpor. Following a period of 2 hours or so when T b is held more or less constant, but oxygen consumption and heart rate are highly irregular, the woodchuck lowe
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Efficient Computer-User Interface in Electronic Mail Systems
This research explores the question of improving user- computer interface. The approach is one of observing and codifying various parameters that influence the efficiency of interface in the context of electronic mail tasks. In the paper the authors observe 'expert' and 'regular' users of a mail system and analyze the sources of efficiency. It is clear that experts use a different, more specialized, set of commands in performing standard mail tasks. While experts perform these tasks with fewer e
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The Sanitary and Phytosanitary Measures (SPS) Agreement: Law, Science and Globalising Markets
The SPS Agreement is one of the most innovative and controversial aspects of the World Trade Organization (WTO). This agreement uses science as a benchmark for assessing the legality of Member State regulation and has, in high profile cases such as EC Hormones and EC Biotech, been used to condemn regulatory measures as unlawful. The agreement, and the institutions which develop and apply it, walk a precarious middle line between trade and public health/environmental protection. This lecture will
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Cogs v2
Cogs v2 - John Savage Keywords:UNSPECIFIED
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Cruz in 2016 U.S. presidential race
Republican Texas Senator Ted Cruz confirms plans to run for president in the 2016 election. Paul Chapman reports. Subscribe: http://smarturl.it/reuterssubscribe More updates and breaking news: http://smarturl.it/BreakingNews Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including business, financial, national, and international news. For over 160 years, Reuters has maintain
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The new Bing...your questions answered

There has been quite a lot of buzz going around about the updates and changes to Bing. So we thought it was a prime opportunity to speak to the design manager,Robert Dietz and program manager, Nathan Buggia about the new release and answer some of your questions directly. You've got questions...we've got answers.

 

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3.3 Optical amplifiers

Figure 22 shows in outline one possible structure for an Erbium-doped fibre amplifier (EDFA).

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Bibliography

Ahmed, A. (1987) Better Mathematics, London, HMSO.

DfEE (2001) Key Stage 3 National Strategy: Framework for Teaching Mathematics: Years 7, 8 and 9, London, DfEE.

NCTM (1989) Curriculum and Evaluation Standards for School Mathematics Reston VA, National Council of Teachers of Mathematics.


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Bayeux Tapestry
Animated version of the Bayeux Tapestry. Starts about halfway through the original work at the appearance of Halley's Comet and concludes at the Battle of Hastings in 1066.
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Lesson 06 - One Minute Luxembourgish
In lesson 06 of One Minute Luxembourgish you will learn to introduce yourself. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Languages at our website - http://www.oneminutelanguages.com. One Minute Luxembourgish is brought to you by the Radio Lingua Network and is ©Copyright 2008.Author(s): No creator set

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5 Conclusion

International economic relationships are constituted in large part by international trade and investment. I have argued that the current trade regime, apparently one of voluntary adherence to negotiated rule-making, is actually systematically weighted against the needs of developing countries. This asymmetry is rooted in a context where rich countries are eager to prescribe free trade for others but reluctant to impose it on themselves and able to avoid doing so. Its consequences are exacerba
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The Rainbow analysed
For centuries the rainbow has been an object of wonder for scientists and mathematicians. It has taken 2000 years to discover many of its secrets. This five track album uses 3D imagery to explain exactly how light is deflected off rain droplets to form the bow like shape we see. This material forms part of The Open University course MU120 Open mathematics. The iTunes
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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

1.2 Resource availability and species diversity

A wide range of ecosystems has been studied in terms of their species diversity and the availability of resources. Each produces an individual relationship between these two variables, but a common pattern emerges from most of them, especially when plant diversity is being considered. This pattern has been named the humped-back relationship and suggests diversity is greatest at intermediate levels of productivity in many systems (Figure 1.5).

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An Interactive Database (HizmO) for Reconstructing Lost Modernist Izmir:
The research project in progress in the School of Architecture at the Izmir Institute of Technology includes documentation and reconstruction (by 3D modeling in electronic media) of damaged and lost early modern buildings in the Izmir region. The research aims to analyze the differences between Izmir modern buildings and Universal Modern Style, and preserve information on architectural heritage for future generations. The project is at the phase of developing an interactive web-based historical
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Urban World van McKinsey
Schermafbeelding_2016-01-15_om_15.40.25.png

Deze app maakt het mogelijk om data van onder meer het bruto binnenlands product, de populatie en het gemiddeld inkomen van huishoudens te vergelijken, tussen verschillende steden wereldwijd.


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1.3 Using ratios

Time conversions are also ratios. The ratio of time measured in minutes to time measured in seconds is one to sixty (1:60), as there are sixty seconds in a minute.

Example 2

Adam's grandfather ran a mile in Author(s): The Open University

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Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share