The genetic block was effective at the level of agglutinated cells in two instances, or before that in two other cases. Mutations of particular interest affected meiosis as well, when homozygous diploid strains were constructed. In these strains azygotic meiosis was inducible by the addition of ...
What type of reproduction involves only one parent that produces genetically identical offspring by budding or by the division of a single cell or the entire organism into two or more parts?The division of the cytoplasm in eukaryotic cells, to produce two cells, is called \\ cytokin...
‘homeodomains’) HD1 and HD2, one in each mating type.MATαcells express a DNA-binding protein (alpha-box protein) that activates transcription of its alpha sex pheromone, as well as receptors to sense the pheromone secreted by compatible cells of theMATamating type. TheMATacells have a ...
Interestingly, in female plants of dioecious Silene, the smut can cause masculinisation of the phenotype and the formation of anther-like structures (Ruddat et al.., 1991). Teliospores undergo meiosis on the host plant, and the resulting haploid cells bud off sporidia that eventually ...
Which type of cell division forms a tumor? What type of cell division generates most of the cells in the human body? a) mitosis b) meiosis c) cytokinesis d) dyad formation Which cell division is called a reductional division? Which nuclear division, meiosis I...
Microsurgical extirpation of oocytes from complexes (OOX cumulus cells) only partially promoted Nppc mRNA expression by ampullae in vitro (Fig. 1e). However, co-culture of ampullae with denuded oocytes (three oocytes/μL ) restored Nppc mRNA Scientific Reports | 7:39711 | DOI: 10.1038/...
Mating-type control and differentiation - Nielsen - 2004 () Citation Context ...trogen source, fission yeast cells of opposite mating type (P and M) undergo morphological changes that allow them to mate to form diploid zygotes, which subsequently undergo meiosis and sporulation (=-=Nielsen, ...
The 26S proteasome is the proteolytic machinery of the ubiquitin-dependent proteolytic system responsible for most of the regulated intracellular protein degradation in eukaryotic cells. Previously, we demonstrated meiotic cell cycle dependent phosphorylation of α4 subunit of the 26S proteasome. In this...
The genus Neurospora also includes homothallic species--ones in which a single haploid nucleus carries all the information necessary to form fruiting bodies, undergo meiosis, and produce new haploid spores. One such species, N. terricola, contains one copy each of the A and the a sequences ...
Spermatogenesis is a complex biological process involving a number of cellular events including mitosis, meiosis, cell migration, apoptosis and differentiation, which enable the germ cells to undergo several developmental stages, from spermatogonia to primary and secondary spermatocytes, round spermatids and...