asexual reproduction


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asexual reproduction

[ā′seksh·ə·wəl ‚rē·prə′dək·shən]
(biology)
Formation of new individuals from a single individual without the involvement of gametes.
References in periodicals archive ?
A multitude of genes are involved in apomixis which express in different tissues and time, and interact and restrain each other, so it is hard to clone genes that control the expression of sexual and asexual reproduction from apomictic plants (Hu and Wang, 2008).
The rarity of asexual reproduction among Mesocestoides tetrathyridia (Cestoda).
For example, sexual reproduction can destroy favorable allelic combinations during meiosis, and compared to asexual reproduction, sexually reproducing organisms only contribute half of their genetic material to offspring.
Compare and contrast sexual and asexual reproduction on advantages and disadvantages for the production of life and the richness of biological diversity.
He demonstrated that in colonies where budding had been inhibited or blocked by gamma-irradiation, asexual reproduction could be restored by means of microinjection with naive lymphocyte-like cells.
coli and the New Science of Life (2008), says new evidence from a colony of New Zealand snails explains how sex simply improves the fitness of a population more reliably than asexual reproduction.
Polyploidy can lead to asexual reproduction and self-compatibility, so newly formed polyploids may be able to maintain viable populations without having a large group of mates to choose from.
The other major approach to reproducing is asexual reproduction.
In his view, the difference between budding and some forms of asexual reproduction by special cells was sufficiently slight that the exclusion of Sprosswechsel from Generationswechsel could not be justified (Celakovsky, 1874; pp.
We have the rule for registering hybrids that the plant should be grown through successions of asexual reproduction to ensure that 1.
We consider as "asexual" reproduction both vegetative (isidia and soredia) and asexual reproduction (picnidia).