In case of polyem Explanation: Presence of more than one embryo in a noob is known as polyembryony. Cov embryos tsim los ntawm synergids yog haploid nyob rau hauv qhov. Cov embryos tsim los ntawm nucellus yog diploid nyob rau hauv xwm.
Yuav ua li cas yog lub ploidy ntawm embryo uas tsim los ntawm synergid nyob rau hauv rooj plaub ntawm polyembryony?
teb tag:
Nws yog diploid hauv xwm. Qhov no qhia tias embryo A uas tsim los ntawm cov synergids yuav muaj ploidy ntawm n thiab embryo B uas tsim los ntawm nucellus yuav muaj ploidy ntawm 2n.
Yuav ua li cas yog polyembryony tiag?
Tseeb polyembryony yog qhov piv txwv ntawm kev tsim cov embryos nrog qhov projection rau hauv ib lub hnab embryo. Cov embryos ntxiv yog tsim los ntawm cleavage ntawm ib tug zygote los yog los ntawm antipodal hlwb thiab synergids.
Qhov twg ntawm cov noob Polyembryonic yog ib qho tsim los ntawm kev sib koom ua ke thiab ib qho tsim los ntawm nucellus yog haploid thiab yog vim li cas?
Thaum muaj polyembryony, yog tias lub embryo tsim los ntawm synergid thiab lwm yam los ntawm lub nucleus uas yog haploid thiab qhov twg yog diploid? Teb: Embryo tsim los ntawm synergid ishaploid li ploidy ntawm synergidyog haploid. Embryo tsim los ntawm nucellus yog diploid raws li ploidy ntawm nucellus yog diploid.
Puas yog piv txwv zoo tshaj ntawm polyembryony?
Kev tsim tawm ntawm ob lossis ntau tshaj ob lub embryos los ntawm ib lub noob lossis qe fertilized yog hu ua Polyembryony. Cov no zoo tib yam rau ib leeg tab sis txawv ntawm cov niam txiv raws li lawv cov caj ces pleev. Citrus txiv hmab txiv ntoo, Opuntia thiab lwm yam yog cov piv txwv zoo tshaj plaws ntawm polyembryony.
