Puas yog fucus haploid lossis diploid?

Cov txheej txheem:

Puas yog fucus haploid lossis diploid?
Puas yog fucus haploid lossis diploid?

Video: Puas yog fucus haploid lossis diploid?

Video: Puas yog fucus haploid lossis diploid?
Video: CLASS 12 BIOLOGY REPRODUCTION 2024, Hlis ntuj nqeg
Anonim

Fucus yog ntau lub cev xim av algae nrog lub neej voj voog piv rau tib neeg (Daim duab 7-9). Cov kab mob is diploid thiab tib lub hlwb haploid yog gametes, uas tuaj nyob rau hauv ob hom: qe loj, unflagellated thiab me me, flagellated phev.

Puas yog Fucus yog Haplontic?

Nws muaj Haplodiplotic life cycle. Lub fucus muaj lub voj voog lub neej diplontic. Ob tug txiv neej thiab poj niam fuse nyob rau hauv ostiole ntawm lub pob.

Ploidy ntawm Fucus yog dab tsi?

Fucus (rockweed), xim av alga, qhia txog keeb kwm ntawm lub neej diploid. Lub zygote ( 2n) dhau los ua embryo (sporophyte hluas heev) thiab loj hlob mus rau hauv cov laus Fucus nrog receptacles ntawm qhov kawg ntawm algae. … Syngamy tshwm sim thaum ob lub fuse thiab dhau los ua zygote (2n).(Nco ntsoov tias tsuas yog gametes yog 1n.)

YPuas yog xim av algae haploid lossis diploid?

Txhua xim av algae muaj ntau lub cellular thiab txhua tus mus dhau ib tiam neeg: diploid (2n) thiab haploid (n) theem alternate.

Lub cev ntawm Fucus yog dab tsi?

Cov nroj tsuag lub cev ntawm Fucus muaj leathery, parenchymatous, dichotomously branched ribbon-zoo li frond, qia-zoo li stipe thiab ib tug basal disc-zoo li holdfast los yog hapteron los ntawm uas nws yog txuas rau lub substratum (Fig. 109A).

Pom zoo: