: Meiosis . ; Mitosis . ; Mitosis and Meiosis .
نویسندگان
چکیده
منابع مشابه
Mitosis and Meiosis
Introduction As we discussed in class, biological growth is a multi-dimensional phenomena. In essence, the basic unit of life, the cell, must duplicate itself. One "mother" cell must become two "daughter" cells, through the process of Cell Division, mostly MITOSIS. This is a completely asexual event and involves replication of the nucleus and its constituents and dividing up of the cytoplasm, t...
متن کاملTurning Meiosis into Mitosis
Apomixis, or asexual clonal reproduction through seeds, is of immense interest due to its potential application in agriculture. One key element of apomixis is apomeiosis, a deregulation of meiosis that results in a mitotic-like division. We isolated and characterised a novel gene that is directly involved in controlling entry into the second meiotic division. By combining a mutation in this gen...
متن کاملChromosome segregation in mitosis and meiosis.
A MODEL FOR CHROMOSOME BEHAVIOR DURING MITOSIS AND MEIOSIS .................................... .. The Mitotic Cell Cycle .....................................................................•............................................ Interphase ........................................................................................................................................ . Metaphase ...
متن کاملChromosome cohesion in mitosis and meiosis.
During mitosis and meiosis sister chromatids are held together by protein complexes. This cohesion is important not only for pairwise alignment of chromosomes on the mitotic spindle but also for the generation of tension across centromeres – it counteracts the pulling force of spindle microtubules, which ensures the bipolar attachment of chromosomes. Chromosome cohesion thus enables accurate ch...
متن کاملKinetochore Orientation in Mitosis and Meiosis
Kinetochores are the major point of contact between spindle microtubules and chromosomes. They are assemblies of more than 50 different proteins and take part in regulating and controlling their own interaction with the spindle. We review recent advance in understanding how kinetochores are properly placed onto the chromosome, and how their interaction with the microtubules of the spindle is re...
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ژورنال
عنوان ژورنال: American Anthropologist
سال: 1978
ISSN: 0002-7294,1548-1433
DOI: 10.1525/aa.1978.80.2.02a01210