What shows zygotic meiosis?

The zygotic meiosis is found in the haplontic life cycle, in which meiosis occurs in zygote. The gametic meiosis occurs in some fungi, in which meiosis occurs in the cells of diploid organisms to form haploid gametes.

In which of the following zygotic meiosis occurs?

Complete answer: Zygotic meiosis occurs in chlamydomonas. When the zygote divides meiotically or when zygote undergoes reduction division after division of nucleus i.e. after karyogamy it is called as zygotic meiosis. Zygote is a stage that is formed after fertilization.

Do gymnosperms show zygotic meiosis?

In bryophytes and pteridophyte- Sporic meiosis takes place. It produces haploid spores. And each spore gives rise to gametophyte body. … So that meiosis in gymnosperms is considered as gametic meiosis.

Do bryophytes show zygotic meiosis?

Thinking Process All algae except Fucus, Ectocarpus, Dictyota and a few other, show haplontic life cycle or zygotic meiosis, Bryophytes and pteridophytes show haplodiplontic life cycle and undergo sporic meiosis.

Is zygotic meiosis found in spirogyra?

Spirogyra bears haploid plant body forming zygospores after the gametic fusion. The nucleus of these zygospores undergoes zygotic meiosis thus forming four haploid nuclei. … So, green algae that is the Spirogyra undergoes zygotic meiosis. Hence, the correct answer is option (B).

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Who shows zygotic meiosis?

The zygote undergoes meiotic division to form haploid spores and thus zygotic meiosis occurs in most algae. The haploid spores undergo mitosis to form haploid gametophytes. The gametophyte is the free-living, dominant phase in organisms with a haplontic life cycle. Gymnosperms are higher plants that produce seeds.

Does zygotic meiosis occur in Fucus?

Zygotic meiosis is the characteristic of a) Fucus b) Funaria c) Marchantia d) Chlamydomonas. In zygotic meiosis, meiotic division happens in zygote resulting in the development of haploid individuals. Thallophytes have dominant gametophytic generation i.e., the proximity of haploid individuals.

What is zygotic meiosis Class 11?

The zygotic meiosis is found in the haplontic life cycle, in which meiosis occurs in zygote. The gametic meiosis occurs in some fungi, in which meiosis occurs in the cells of diploid organisms to form haploid gametes.

Why is zygotic meiosis called initial meiosis?

1. Zygotic or initial meiosis: In some lower plants meiosis takes place in the zygote (at the initial stage; when the zygote develops) and the resulting organisms are haploid. It is called zygotic or initial meiosis.

Does meiosis occur in zygotes?

Gametes fuse in fertilization to produce a diploid zygote, but that zygote immediately undergoes meiosis to produce haploid spores. … Fertilization produces a diploid zygote that undergoes mitosis to produce the diploid version of the plant, called a sporophyte, which then produces haploid spores by meiosis.

Do gymnosperms show Sporic meiosis?

All plants except Thallophyta. … Other members of the plant kingdom like bryophytes, pteridophytes, gymnosperms, and angiosperms, when form diploid zygote, undergo sporic meiosis to form a multicellular sporophyte and then give rise to haploid spores which make new plants.

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Do bryophytes show Sporic meiosis?

As do all plants, bryophytes alternate a gametophytic generation with a sporophytic one (a sporic meiosis, a life cycle in which meiosis gives rise to spores, not gametes). Each of the haploid (1 n) spores is capable of developing into a multicellular, haploid individual, the gametophyte.

In which of the following organisms zygote undergoes meiosis?

Two organisms of opposing sex contribute their haploid gametes to form a diploid zygote. The zygote undergoes meiosis immediately creating four haploid cells . these cells undergo mitosis to create the organisms.

Which algae shows zygotic meiosis?

Chlamydomonas has haplontic life cycle hence showing zygotic meiosis or initial meiosis.

Does Chara shows zygotic meiosis?

It shows zygotic meiosis in which meiosis arises in zygote just after karyogamy. As a result, a diploid cell produces haploid cells.

Is zygotic meiosis found in Chara?

In such a life cycle, all cells are haploid except zygote. This is because meiosis occurs in the zygote itself resulting into four haploid cells that give rise to hapolid plants.

Question : Zygotic meiosis is characteristic of.

Question Zygotic meiosis is characteristic of
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