Results 61 to 70 of about 1,562,582 (397)

A fragmented metazoan organellar genome [PDF]

open access: yes, 2008
Background: Animal mitochondrial (mt) genomes are characteristically circular molecules of ~16–20 kb. Medusozoa (Cnidaria excluding Anthozoa) are exceptional in that their mt genomes are linear and sometimes subdivided into two to presumably four ...
Erpenbeck, Dirk   +2 more
core   +1 more source

Size of the Whole versus Number of Parts in Genomes

open access: yesEntropy, 2011
It is known that chromosome number tends to decrease as genome size increases in angiosperm plants. Here the relationship between number of parts (the chromosomes) and size of the whole (the genome) is studied for other groups of organisms from different
Núria Forns   +3 more
doaj   +1 more source

Chromosome cohesion: A polymerase for chromosome bridges [PDF]

open access: yesCurrent Biology, 2000
How do cells ensure that sister chromatids produced during DNA replication stay connected with each other until their separation in anaphase? New insight is provided by the discovery of DNA polymerase kappa, which has been found to be required for building the connections between sister chromatids.
openaire   +2 more sources

The IQ‐compete assay for measuring mitochondrial protein import efficiencies in living yeast cells

open access: yesFEBS Letters, EarlyView.
The efficiency of mitochondrial protein import depends on the properties of the newly synthesized precursor proteins. The Import and de‐Quenching Competition (IQ‐compete) assay is a novel method to monitor the import efficiency of different proteins by fluorescence in living yeast cells.
Yasmin Hoffman   +3 more
wiley   +1 more source

Sex chromosome positions in human interphase nuclei as studied by in situ hybridization with chromosome specific DNA probes [PDF]

open access: yes, 1984
Two cloned repetitive DNA probes, pXBR and CY1, which bind preferentially to specific regions of the human X and Y chromosome, respectively, were used to study the distribution of the sex chromosomes in human lymphocyte nuclei by in situ hybridization ...
C. R. M�ller   +30 more
core   +1 more source

Fertility recovery of anther-derived haploid plants in Cape gooseberry (Physalis peruviana L.)

open access: yesAgronomía Colombiana, 2018
The cape gooseberry (Physalis peruviana L.) is one of the most important Colombian exotic fruits. Chromosome doubling of anther-derived plants is a key factor in the application of double haploid technology for the genetic improvement of crops.
Francy Garcia-Arias   +2 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Somatic Pairing in Drosophila virilis Mitosis [PDF]

open access: yes, 1975
In neuroblast cells homologous chromosomes tend to pair during prophase of mitosis. Heterochromatic elements of homologous chromosomes are widely separated in very early prophase, at which time the euchromatin is poorly stained.
Guest, William C.
core   +2 more sources

Direct and indirect control of the initiation of meiotic recombination by DNA damage checkpoint mechanisms in budding yeast [PDF]

open access: yes, 2013
Meiotic recombination plays an essential role in the proper segregation of chromosomes at meiosis I in many sexually reproducing organisms. Meiotic recombination is initiated by the scheduled formation of genome-wide DNA double-strand breaks (DSBs).
AJ MacQueen   +40 more
core   +3 more sources

AFLP linkage map of the Japanese quail Coturnix japonica

open access: yesGenetics Selection Evolution, 2003
The quail is a valuable farm and laboratory animal. Yet molecular information about this species remains scarce. We present here the first genetic linkage map of the Japanese quail.
Beaumont Catherine   +6 more
doaj   +1 more source

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