Question: Is Archegoniophore haploid or diploid?

What is an Archegoniophore?

: the stalk or other outgrowth of a prothallium upon which archegonia are borne (as in liverworts of the genus Marchantia) — compare carpocephalum.

What is Archegoniophore and Antheridiophore?

Antheridiophore bears the male sex organ antheridia while Archegoniophore bears the female sex organ archegonia. … Antheridia are embedded in the upper surface of each lobes and the pit like cavities having the antheridia is called the antheridial chambers.

Is Archegoniophore sporophyte or gametophyte?

Each such “umbrella”, or archegoniophore, is not itself a sporophyte but is in fact gametophyte tissue. The part of the “umbrella” at the top of the stem is called the female receptacle or carpocephalum. The receptacle is initially on the thallus surface and the stalk grows to raise it.

Are Antheridiophores haploid?

The haploid thalli (single thallus) are dioecious: they produce either (female) archegoniophores or male antheridiophores. Moreover, in Marchantia asexual reproduction occurs by means of fragmentation of the thallus or via gemmae produced from cells of gemma cups.

Is the sporophyte haploid or diploid?

In the sporophyte phase a diploid (having two sets of chromosomes) plant body grows and eventually produces spores through meiosis. These spores divide mitotically to produce haploid (having a single set of chromosomes) gamete-producing bodies called gametophytes.

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Is Archegoniophore present in Funaria?

Funaria. Hint: Sexual reproduction occurs by the formation of archegoniophore. Archegoniophore bears the female sex organs archegonia. Archegonia are formed on the lower surface of the gametophyte near the apical notch, region of the most rapid cell division.

Is Antheridiophore and Archegoniophore present in Pteridophytes?

In pteridophytes Antheridia and Archegonia are present directly without being present on antheridiophores and archegoniophores respectively. Antheridiophores and archegoniophores are present in certain bryophytes such as Ferns.

How can you differentiate the two specimens containing Antheridiophore and Archegoniophore?

How Is Antheridiophore Different From Archegoniophore?

  1. Antheridiophore are present only in male plants.
  2. Antheridiophore bears the male sex organ antheridia.
  3. Fertilization does not occur in the antheridiophore.
  4. Antheridiophores is composed of a stalk and a disc-like portion called a receptacle.

What is Antheridiophore?

: a gametophore bearing antheridia only (as in certain mosses and liverworts)