BETA
Examples ofmegaspore
Dictionary> Examples ofmegaspore
megasporeisn’t in the Cambridge Dictionary yet. You can help!
Add a definition
As the functionalmegaspore, the megagametophyte is genetically identical to the egg cell.
From theCambridge English Corpus
The nucellus is uniseriate, contains a thin-walled seedmegaspore, and appears to be connected to the integument towards the chalaza only.
From theCambridge English Corpus
No isolated megaspores were found associated with the sporophylls.
From theCambridge English Corpus
The nucellus is poorly preserved but appears uniseriate, and is attached to the integument only at its base, and contains a thin-walledmegasporethat lacks developed megagametophyte tissues.
From theCambridge English Corpus
Within each ovule, amegasporedevelops by mitosis into a megagametophyte.
From
This example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.The tetrasporic pattern is characterized by cell plates failing to form after either meiosis 1 or 2, and results in one four-nucleatemegaspore.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Toward the center of each sorus and developing first are the megasporangia, each of which will produce a single large femalemegaspore.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.In gymnosperms, three of the four haploid spores produced in meiosis typically degenerate, leaving one survivingmegasporeinside the nucellus.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Thismegasporebecomes larger and the nucleus of it undergoes mitosis three times until there are eight nuclei.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.As with all seed-plants, the lyginopteridalean ovules had just one functional seedmegasporewithin the nucellus.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Only one is a functionalmegasporewhereas the others stay dysfunctional or degenerate.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.One kind, the megasporangium, produces only a single large spore (amegaspore).
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Within the seed coat, themegasporedevelops into a tiny gametophyte, which in turn produces one or more egg cells.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Generally speaking, themegaspore, or large spore, germinates into a female gametophyte, which produces egg cells.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.This type of megagametophyte develops from themegasporethrough three rounds of mitotic divisions.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.The female gametophyte protrudes from themegasporeand bears a small number of archegonia, each containing a single egg.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Three cells die and one that is most distant from the micropyle develops into themegaspore.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.The megagametophyte develops within themegasporeof extant seedless vascular plants and within the megasporangium in a cone or flower in seed plants.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.Themegasporethat remains divides mitotically and develops into the female gametophyte (megagametophyte) which eventually produces one or more eggs.
FromThis example is from Wikipedia and may be reused under a CC BY-SA license.
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
- a-cut-above
- acute
- acute angle
- acute-angle
- acute asthma
- acute attack
- acute awareness
- acute crisis
- acute discomfort
- acute distress
- acute embarrassment
- acute event
- acute exposure
- acute facility
- acute hospital
- acute illness
- acute infection
- acute inflammation
- acute injury
- acutely
- acuteness
- acute observation
- acute pain
- acute phase
- acute radiation