Dictionary » G » Gametophyte



(Science: plant biology) a plant, or phase of a plants life cycle, that bears gametes.

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Virus Questions [Science Fiction]

... evolved from a virus, but still depends on a viral phase to infect hosts for reprocution, somewhat like how plants gradually transitioned from a gametophyte-dominant life cycle to a sporophyte-dominant life cycle.

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by wildfunguy
Wed Dec 03, 2014 12:31 am
Forum: Microbiology
Topic: Virus Questions [Science Fiction]
Replies: 3
Views: 1463

Structure of flower

... of the stamen which bears the anther. Anther The pollen bearing portion of a stamen. Pollen Grains containing the male gametes. Immature male gametophyte with a protective outer covering. Carpel\Pistil Female part of the flower. Consisting of the stigma, style and ovary. Stigma Often sticky ...

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by snowfall
Thu May 30, 2013 5:29 pm
Forum: Botany Discussion
Topic: Structure of flower
Replies: 3
Views: 8267

Plant physiology question

... and what would be the genotypes of the resulting structures after fertilization in the plants life cycle? Resulting sporophyte, Resulting gametophyte, Spores, Sporangium sac in the sori, Resulting antheridium sac, Resulting spore mother cell, Cells that make up rhizoids I'm assuming that ...

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by inglej
Tue Apr 03, 2012 5:41 am
Forum: General Discussion
Topic: Plant physiology question
Replies: 0
Views: 2089

Ferns and their life cycle

... that has only one copy of each chromosome (haploid), and a seed is multicellular and has two (diploid). The spore develops into a plant called a gametophyte that can produce both sperm and eggs. These unite in the processes called fertilization, producing a "baby" fern called a zygote, ...

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by jaycee
Mon Aug 01, 2011 1:54 pm
Forum: Botany Discussion
Topic: Ferns and their life cycle
Replies: 7
Views: 9377

Re: sporophytic haploids....is it true?

... reproductive cycle in which a diploid sporophytic phase alternates with a haploid gametophytic phase. The plant represents the sporophyte, and the gametophytes are microscopic. As illustrated in the double fertilization entry, the male gametophyte is the pollen grain and the female gametophyte ...

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by sara135
Tue Jul 12, 2011 8:23 am
Forum: Botany Discussion
Topic: sporophytic haploids....is it true?
Replies: 6
Views: 10054
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