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Found Haploid 36 times.

Displaying results 1 to 10.

1. Acrosome
A membrane-bound section at the tip of the head of a sperm which contains lytic enzyme s (hyaluronidase in mammalian sperm) which break down the outer coat of the egg and allow the sperm to inject its haploid DNA .

2. Alternation of generations
A life cycle in which a multicellular diploid stage is followed by a haploid stage and so on; found in land plants and many algae and fungi.

3. C value
A measure of the amount of DNA in the haploid genome of an organism, which can be by mass or by molecular weight.

4. Chlamydomonas
A genus of green algae consisting of more than 600 species worldwide, living in marine, freshwater, soil, and even snow environments. They are single cell ed eukaryotic organisms ranging from 5 to 100 micrometers long which can be roughly spherical, egg shaped, or elliptical. Most species have two flagella (coming out the same side) for swimming. Most of the time they are haploid and reproduce by dividing into two ( binary fission ); when they are stressed they can form gamete s which fuse to form diploid cyst s which later divide into four haploid cells. Taxonomically they have been classified under plants, animals, and protist s. Several species from this genus are important model organisms for the study of cell biology , molecular biology , genetics , plant physiology , and biotechnology . The species most commonly used in scientific experiments is Chlamydomonas reinhardtii (also known as C. reinhardi or C. reinhardii).

5. Conjugate
Paired together. * In chemistry , this refers to an acid and a base which can convert to each other by the gain or loss of a proton (a hydrogen nucleus), which together are called a "conjugate acid-base pair." It can also refer to two liquids in equilibrium with each other. * In mycology (the study of fungi ), this refers to a dikaryon with two haploid nuclei in it.

6. Conjugate division
The nuclear division of both haploid nuclei in a dikaryon at the same time (in a dikaryon which has two nuclei). The term is relevant to the biology of fungus .

7. Copy number
* The number of copies of a particular sequence of DNA , a particular gene , or a particular set of genes, in the haploid genome of an organism. * The number of plasmid s per bacterium . Plasmids which are replicated easily and often are called "high-copy-number plasmids"; plasmids which are more strictly controlled in their replication are called "low-copy-number plasmids." The different types have different uses to a geneticist.

8. Diploid
A full set of genetic material, consisting of paired chromsome s one chromosome from each parental set. Most animal cells except the gamete s have a diploid set of chromosomes. The diploid human genome has 46 chromosomes. Compare haploid .

9. Endosperm (albumen)
Nutritive tissue in a seed; in angiosperm s it's triploid and is formed in the embryo sac after fertilization. In gymnosperm s, it's haploid and is derived from the sterile portion of the female gametophyte . Compare perisperm .

10. Gamete
Mature male or female reproductive cell ( sperm or ovum ) with a haploid set of chromosome s (23 for humans).

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