seed
a characteristic reproductive structure of seed plants that consists of an embryo, enclosed by a seed coat, and a food-storage tissue; see endosperm
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Seed
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Dictionary » S » Seed Vessel
Seed Vessel
The ripened and variously modified walls of a plant ovary.
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seed -- A structure produced by seed plants which encapsulates the embryo. The seed often provides nourishment during germination, but may lie dormant for many years first.
seed Structure produced by some plants in which the next generation sporophyte is surrounded by gametophyte nutritive tissues. An immature sporophyte in an arrested state of development, surrounded by a protective seed coat. PICTURE ...
seed
An adaptation for terrestrial plants consisting of an embryo packaged along with a store of food within a resistant coat.
segregation ...
Seed Plants (Division Spermatopsida)
Gymnosperms
Fossil from the Devonian period reveal fernlike plants that were heterosporous; that is, produced two kinds of spores.
microspores (male) and
megaspores (female).
seed piece. Portion of a potato tuber containing at least one eye that is planted to produce a new potato plant.
seedcotton. Harvested lint that is still attached to seeds; i.e., the lint before ginning.
seed - reproductive unit formed from a fertilized ovule, consisting of embryo and seed coat, and in some cases an endosperm (Glossary of PM) ...
seed
Formed from a fertilized ovule, it is the body from which a new plant develops. It is comprised of an outer coat enclosing a food source (which may be stored in the cotyledon), and an embryo.
single seed descent A seed generation method where all of the progeny are descended from a single parent plant. Each subsequent generation is obtained in this manner.
Slides Information about a hybridized slide or chip.
Federal Seed Act. See U.S. Department of Agriculture.
FIFRA. The Federal Insecticide, Fungicide, and Rodenticide Act. See Environmental Protection Agency.
seed plants retain the female gametophyte on the sporophyte
Spores/Pollen
spores for resisting environmental degradation ...
seed ferns Fossil plants with fernlike foliage but producing seeds belonging to the division Pteridospermophyta.
seeding In mariculture, the release of cultured juvenile individuals to enrich a natural stock.
Provides seed from up to 200 different lines of Thale cress for academic and ... International Arabidopsis Meeting (ICAR) 2009 - Edinburgh, UK. EICC 30 ... Arabidopsis ...
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[L. semen - seed; L. ferre - to bear]. The tightly coiled tubules found within the testes of vertebrates containing germ cells that are differentiated into spermatozoa.
endospore - seed-like structure; formed to preserve life when conditions turn bad ...
Hybrid: Seed or plants produced as the result of controlled cross-pollination as opposed to seed produced as the result of natural pollination. Hybrid seeds are selected to have higher quality traits (for example, yield or pest tolerance).
A. the dented seed and short traits are unlinked.
B. he would not have concluded any of the above.
C. all traits in peas assort independently of each other.
Often only flowers and sets seed during the second year. Biodiversity: The total variation in life, including the number of species, the degree of genetic variation within species, the different types of ecosystems, ...
A chickadee, for example, carries one sunflower seed at a time from a feeder to a nearby branch, secures the seed to the branch between its feet, pecks it open, eats the contents, and repeats the process.
Mendel's success also came from limiting his investigations to only a few traits of the pea plant: flower color, seed shape, seed color, plant height, etc. He also selected plants that had different manifestations of each trait (phenotypes).
Given an initial population either generated randomly or using the simple molecule ethane as a seed, the GA randomly adds, removes and alters atoms and molecular fragments with the aim of generating molecules that fit the given constraints.
The lobules (lobuli hepatis) form the chief mass of the hepatic substance; they may be seen either on the surface of the organ, or by making a section through the gland, as small granular bodies, about the size of a millet-seed, ...
Ingo Potrykus and his colleagues found that geranyl geranyl diphosphate (GGPP), a precursor to carotenoid production, is present in rice seed.
Triploid tissue in a seed, formed from fusion of two haploid female and one haploid male nucleus.
Related Terms:
Haploid ...
The adventitious presence of GM material is the unintended occurrence of plant material from crops improved through modern biotechnology in other seed, food and feed.
It is a plant model system of choice because of the additional advantages of short generation time (about five weeks), high seed production (up to 40,000 seeds per plant) and natural self-pollination ...
In peas, the locus for seed texture (smooth or wrinkled) and seed color (yellow or green) are on two different chromosomes so they assort independently.
spermatos - seed, semen; Gr. kytos - a hollow vessel; modern usage cyt- denotes a cell]. An immature diploid germ cell found in the testis that arose from a spermatogonium and that will undergo two meiotic divisions to become four spermatids.
This hypothesis, which scientists still use today, says that a pea plant (And all other life forms) have two genes, for tallness, making a gene pair. They also have a gene pair for every other trait, including seed shape, seed color, or in humans, ...
Achene a type of fruit‚ such as a dandelion fruit‚ which "looks like" a seed and does not burst open when ripe
(a- = not‚ without; chen = yawn‚ open‚ gape) ...
You drink the water, the cyst passes the stomach where acid weakens the cyst wall, and in the intestine, the little caraway seed-like sporozooites invade the intestinal wall and produce more cysts. Sporozooites are shown escaping their cysts.
From that point, one haploid male nucleus combines with a female nucleus and the other haploid male nucleus combines with a polar nucleus. If successful, an embryo and seed/fruit develop respectively.
For instance, some vacuoles contain pigments that give certain flowers their characteristic colors. The central vacuole also contains plant wastes that taste bitter to insects and animals, while developing seed cells use the central vacuole as a ...
 See also: Plant, Organ, Animal, Trans, Animals
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