Tegesé saka "parasexuality" ing bausastra Basa Inggris

PANGOCAP SAKA PARASEXUALITY ING BASA INGGRIS

parasexuality  [pærəˌsɛkʃʊˈælətɪ]

APA TEGESÉ PARASEXUALITY ING BASA INGGRIS?

Siklus parasexual

Parasexual cycle

Siklus parasexual, prosès khusus kanggo kelompok jamur lan organisme sel tunggal, minangka mekanisme nonsexual kanggo ngirim materi genetik tanpa meiosis utawa pangembangan struktur seksual. Bab iki pisanan diterangake dening ahli genetika Italia, Guido Pontecorvo taun 1956 nalika sinau ing famili Aspergillus. Siklus parasexual diprakarsani kanthi fusi hiphae sajrone nukleus lan komponen sitoplasma liyane ngubengi sel sing padha. Fusi saka inti sing ora kaya inti ing sel heterokaryon ngasilake nukleus diploid, sing dianggep ora stabil lan bisa ngasilake segregant kanthi rekombinasi sing ngliwati mitosis nyebrang lan haploidization. Penyeberangan Mitotic bisa nyebabake pertukaran gen ing kromosom; nalika haploidization mbokmenawa ngandhut nondisjuncts mitosis sing sacara acak mengongkon kromosom lan nyebabake produksi sel aneuploid lan haploid. Kaya siklus seksual, parasexualitas menehi spesies kesempatan kanggo ngrampungake genome lan ngasilake genotipe anyar ing turunan. Ora kaya siklus seksual, proses ora koordinasi lan sacara khusus mitosis. Siklus parasexual mirip reproduksi seksual.

The parasexual cycle, a process peculiar to fungi and single-celled organisms, is a nonsexual mechanism for transferring genetic material without meiosis or the development of sexual structures. It was first described by Italian geneticist Guido Pontecorvo in 1956 during studies on Aspergillus nidulans. A parasexual cycle is initiated by the fusion of hyphae during which nuclei and other cytoplasmic components occupy the same cell. Fusion of the unlike nuclei in the cell of the heterokaryon results in formation of a diploid nucleus, which is believed to be unstable and can produce segregants by recombination involving mitotic crossing-over and haploidization. Mitotic crossing-over can lead to the exchange of genes on chromosomes; while haploidization probably involves mitotic nondisjunctions which randomly reassort the chromosomes and result in the production of aneuploid and haploid cells. Like a sexual cycle, parasexuality gives the species the opportunity to recombine the genome and produce new genotypes in their offspring. Unlike a sexual cycle, the process lacks coordination and is exclusively mitotic. The parasexual cycle resembles sexual reproduction.

Definisi saka parasexuality ing bausastra Basa Inggris

Definisi parasexuality ing kamus iku parasexual behavior.

PERTALAN SAKA PARASEXUALITY

Weruhi pertalan saka parasexuality menyang 25 basa nganggo Basa Inggris pamertal multi basa kita.

pertalan saka parasexuality saka Basa Inggris menyang basa liyané kang kasuguhaké ing perangan iki kajupuk saka pertalan statistik otomatis; ing ngendhi inti unit pertalan yaiku tembung «parasexuality» ing Basa Inggris.

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BUKU BASA INGGRIS KAKAIT KARO «PARASEXUALITY»

Temukaké kagunané saka parasexuality ing pilihan bibliografi iki. Buku kang kakait dening parasexuality lan pethikan cekak kang padha kanggo nyediyakaké panggunané ing sastra Basa Inggris.

Sexualities in History: A Reader

PARASEXUALITY. AND. GLAMOUR. The Victorian Barmaid as Cultural Prototype PETER BAILEY Sexuality, we are now told, plausibly enough, is everywhere.1 Yer recent scholarship, for all its advances, has done litrle to register or interprer ...

Kim M. Phillips, Barry Reay, 2002

A Textbook of Fungi

e.g. In Aspergillus- nidulans (n = 8) nuclei detected are with n = 1 7 (2n + 1 ), 1 5 ( 2n - 1 ), 16, 12, 11, 10, 9 and 8 so this leads to a strong support for haploidization. Parasexuality is a practical means for producing genetic variation, which is ...

Rajni Gupta, 2004

Parasexuality

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.

Frederic P. Miller, Agnes F. Vandome, McBrewster John, 2010

Microbial Technology

Even with the help of the low concentration of p-flurophenylamine benlate stimulate haplodization, so that fungus undergoes parasexual cycle. Parasexuality is being described in sexual fungi, it is not found in Neurospora crassa or Podospora ...

Rajni Gupta, K. G. Mukerji, 2001

An Introduction to Mycology

5. Products of meiosis readily recognized and 5. Recombinants cxc ur among vegetative isolated. tells. Recognized by use of suitable markers Although there are no examples of parasexuality in lower fungi, para- sexuality is still considered a ...

R. S. Mehrotra, K. R. Aneja, 1990

Text Book Of Botany Diversity Of Microbes And Cryptogams

Applications of Parasexuality The phenomenon of parasexuality is applied in several industrial processes. Most of the fungi which are significant in industries belong to the imperfect group of fungi and they reproduce by parasexual cycle.

Singh

FUNDAMENTALS OF PLANT PATHOLOGY

13.4.2 Parasexuality/Parasexual Cycle Several common mitosporic fungi, including Penicillium, Aspergillus, F usarium and T richoderma, appears to have abandoned sexual reproduction because their sexual stages are not seen in laboratory ...

N. G. RAVICHANDRA, 2013

Trichoderma And Gliocladium: Basic Biology, Taxonomy and ...

11.3 Variation in the nuclear genome resulting from asexual genetic recombination 11.3.1 Classical parasexuality For many years, fungi have been known to undergo somatic hybridization. This work originally was developed and analyzed ...

Gary E. Harman, C. P. Kubicek, 2002

Biology Of Conidial Fungi

species over the past 20 yr, and a list of their original references is given in Table I. This list includes only examples for which there is genetic evidence of parasexuality from laboratory studies modeled on the pioneering work with A. nidulans.

Garry T. Cole, 2012

Fungal Biology

Nonsexual. variation: parasexuality. Many common mitosporic fungi, such as Aspergillus, Penicillium, Fusarium, and Trichoderma, seem largely to have abandoned sexual reproduction, because their sexual stages are not seen in laboratory ...

J. W. Deacon, 2013