by North-Holland Pub. Co. : sole distributors for U.S.A., Elsevier/North Holland in Amsterdam, New York .
Written in English
Includes bibliographies and index.
|Statement||C. J. Bostock and A. T. Sumner.|
|Contributions||Sumner, A. T. 1940- joint author.|
|LC Classifications||QH600 .B67|
|The Physical Object|
|Pagination||xviii, 525 p. :|
|Number of Pages||525|
|LC Control Number||77011994|
This book presents an overview of various aspects of chromosome research, written by leading experts of the respective fields, combining classic and recent molecular biological results. The variety and comprehensiveness make it a handbook of chromosome research for all scientists, teachers and graduate students interested in this : $ Key Terms. nucleosome: any of the subunits that repeat in chromatin; a coil of DNA surrounding a histone core; histone: any of various simple water-soluble proteins that are rich in the basic amino acids lysine and arginine and are complexed with DNA in the nucleosomes of eukaryotic chromatin; chromatin: a complex of DNA, RNA, and proteins within the cell nucleus out of which chromosomes. If the DNA from all 46 chromosomes in a human cell nucleus was laid out end to end, it would measure approximately two meters. However, the diameter would be only 2 nm. Considering that the size of a typical human cell is about 10 µm (, cells lined up to equal one meter), DNA must be tightly packaged to fit in the cell’s nucleus. Eukaryotic chromosomes are now finely dissected at various molecular levels to enhance our understanding of the evolutionary history of organisms.
In eukaryotes, chromosomes are linear structures. Every eukaryotic species has a specific number of chromosomes in the nucleus of each cell. For example, in humans, the chromosome number is 46, while in fruit flies, it is eight. Chromosomes are only visible and distinguishable from one another when the cell is getting ready to divide. Telomeres are capping regions that exist on the ends of chromosomes that protect the chromosome from degradation during replication. A centromere is the single point region on a chromosome that aids organization during replication by connecting two sister chromatids (the original chromosome and its replicated partner). Chromosome structure. The chromosomes of eukaryotic cells are larger and more complex than those found in prokaryotes, but each unreplicated chromosome nevertheless consists of a single molecule of gh linear, the DNA molecules in eukaryotic chromosomes are highly folded and condensed; if stretched out, some human chromosomes would be several centimeters long—thousands of times. In eukaryotes, chromosomes are linear structures. Every eukaryotic species has a specific number of chromosomes in the nuclei of its body’s cells. For example, in humans, the chromosome number is 46, while in fruit flies, it is eight. Chromosomes are only visible and distinguishable from one another when the cell is getting ready to divide.
The eukaryotic chromosomes are more complicated than procaryotic. They encode more information (coding and non-coding parts) so we recognize bigger count of chromosomes in Eukaryota. They encode more information (coding and non-coding parts) so we recognize bigger count of chromosomes . The Eukaryotic Chromosome. STUDY. PLAY. Chromatin. made of DNA and proteins-DNA is one linear molecule with genes interspersed with introns-DNA has different levels of organization such as telomeres, centromeres, coding regions, hypercondensed regions, methylated regions. Problem posed to DNA. Genre/Form: Electronic books: Additional Physical Format: Online version: Bostock, C.J. Eukaryotic chromosome. Amsterdam ; New York: North-Holland Pub. Co.: Sole. Eukaryotic Chromosomes The large amount of genomic DNA in a eukaryotic cell is tightly packaged in chromosomes contained within a specialized organelle, the nucleus. With the exception of the sex chromosomes, diploid eukaryotic organisms such as humans have two copies of each chromosome, one inherited from the father and one from the mother.