7. generation - the act of producing offspring or multiplying by such production multiplication, propagation facts of life, procreation, reproduction, breeding - the sexual activity of conceiving and bearing offspring biogeny, biogenesis - the production of living organisms from other living organisms ...
when William Herschel used a microscope to establish that coral had the characteristic thin cell membranes of an animal.[6] Presently, corals are classified as species of animals within the sub-classes Hexacorallia and Octocorallia of the class Anthozoa in the phylum Cnidaria.[7] Hexacorallia incl...
This study examines the impacts of physical and chemical stressors on the rates of asexual reproduction of the invasive planarian Girardia tigrina. 320 wild-caught planaria (mixed size class) were kept individually in Petri dishes such that their individual rates of fission through fragmentation ...
Tunicates are marine filter feeding organisms representing the sister group of vertebrates [1] and the only chordates with species exhibiting asexual reproduction (by budding or blastogenesis) [2]. Ascidians, the major class of tunicates, are sessile animals including both solitary and colonial speci...
The protein encoded by this gene belongs to the class of so-called homeobox transcription factors. Similar homeoticgenesare also present in humans and animals, where they also control pivotal developmental processes. Whether a congener of BELL1 is a master regulator of embryo development in humans ...
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In a very large population,n0is the equilibrium size of the mutation-free class. We examined the casen0> 1 and developed one approximation for intermediate values ofNandsand one for large values ofNands. For intermediate values, the expected time at which the ratchet advances increases linearly...
Production of mitotic spores has been reported for various species of the Agaricomycetes but is generally rather neglected and the extent of asexual sporulation in this class of Basidiomycetes is unknown. The typical life cycle of Agaricomycetes comprise
- Genetic control - Only option if seeds not produced - May be easier than seed germination - Bypass juvenile characteristics - Get established faster than seedlings - Cost effective – commercial mass reproduction - Can combine two different plants10/13/2013 3Concepts important in asexual ...
Recombination can substantially reduce the requisite mutational load, compared to clonal reproduction, when there is buffering and/or reinforcing epistasis and also when there is positive assortative mating for fitness. Recombination is advantageous because it reduces the negative (variance reducing) linkage...