Navigation Links
Macronucleus


A macronucleus is the larger type of nucleus in ciliates. Macronuclei are polyploid and undergo direct division without mitosis. It controls the non-reproductive cell functions, the everyday tasks, such as metabolism. During conjugation, the macronucleus disintegrates, and a new macronucleus is formed by karyogamy of the micronuclei. The macronucleus...
Full article >>>

relatively large nucleus believed to influence many cell activities. It occurs in suctorian and ciliate protozoans (e.g., Paramecium). The macronucleus is associated with one or more smaller micronuclei, which are necessary for conjugation and autogamy (reproduction by exchange between the nuclei of different individuals and of the same individuals,...
Full article >>>

macronucleus synonyms. macronucleus usage examples and macronucleus quotes. ... macronucleus definition. macro·nu·cleus (mak′rō no̵̅o̅′klē əs) noun ...
Full article >>>

a large, polyploid macronucleus that contains the active genes that run the cell. ... The old macronucleus disintegrates and a new one is formed from the ...
Full article >>>

A complex DNA error-correction system that likely evolved from an ancient self-defense mechanism is still active in ... This macronucleus houses about 15 ...
Full article >>>

Development of the somatic macronucleus in some ciliates presents an extreme ... macronucleus, with each chromosome amplified to a high copy number, with some ...
Full article >>>

The macronucleus is highly polyploid (~800n in P. tetraurelia), divides ... During sexual events, the old macronucleus is degraded and replaced by a new one, ...
Full article >>>

Each cell contains a germ line micronucleus and a somatic macronucleus. ... All endogenous RPB3 genes in the macronucleus could be replaced by RPB3-HA (Fig. ...
Full article >>>

Paramecium caudatum. 1. Macronucleus. 2. Micronucleus. 3. Contractile vacuoles ... Note the large, kidney-shaped macronucleus that controls most of the metabolic ...
Full article >>>

Note the large, kidney-shaped macronucleus that controls most of the metabolic ... within a depression on the macronucleus) is the much smaller micronucleus, which ...
Full article >>>

... ciliate Chilodonella uncinata, the macronucleus is extensively fragmented such ... The macronucleus has a greater number of smaller chromosomes and is the site of ...
Full article >>>

... 6000 loci in the developing macronucleus (YAO and GOROVSKY 1974; YAO et al. ... The wide, open boxes represent the macronucleus-retained flanking regions. ...
Full article >>>

... called the macronucleus which controls ... Color the macronucleus red. ... 7. What do the macronucleus and micronucleus do? 8. Define conjugation. ...
Full article >>>

Macronucleus - Wikipedia, the free encyclopedia ... macronucleus /mac·ro·nu·cle·us/ (-noo'kle-us) the larger of two types of nuclei ...
Full article >>>


'"/>


(Date:7/11/2014)... "mouse TRAP" to capture the early signs of kidney ... the Journal of Clinical Investigation . Their new ... extract cellular and genetic information from a variety of ... Institute for Medical Research in 2008, TRAP involves attaching ... of the cell type of interest. Scientists can then ...
(Date:7/11/2014)... from the Max Planck Institute for Medical Research in ... understanding photosynthesis, the process by which the Earth first ... and which is therefore crucial for all higher forms ... the first direct visualization of a crucial event in ... specific protein complex, photosystem II, splits water into hydrogen ...
(Date:7/11/2014)... division of the striatum is also involved in ... of substance P in the striatal marginal division ... his team, College of Biophotonics, South China Normal ... P receptor, neurokinin 1 was highly expressed in ... rats. Unilateral or bilateral injection of an antisense ...
Breaking Biology News(10 mins):A first direct glimpse of photosynthesis in action 2
... disease that can lead to life-threatening heart and digestive ... thought, according to research from The University of Texas ... years now, and this year the number of disease-causing ... integrative biology and philosophy at The University of Texas ...
... the most stressful thing that can happen to anybody. But ... of traumatic experiences. Most humans come to terms with it ... How weaning takes place, however, can have a dramatic effect on ... this is so, at least for horses, comes from the latest ...
... Over the next decade, the population of cancer survivors over ... "We can expect a dramatic increase in the ... a history of cancer," said Julia Rowland, Ph.D., director of ... Control and Population Sciences at the National Cancer Institute (NCI). ...
Cached Biology News:Chagas disease may be a threat in South Texas, says researcher 2The short goodbye: Weaning foals 2The short goodbye: Weaning foals 3Older cancer survivor population to increase substantially 2
Other biology dictionary