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Haploid

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haploid
Referring to an organism or cell having only one member of each pair of homologous chromosomes and hence only one copy (allele) of each gene or genetic locus. Gametes and bacterial cells are haploid. See also diploid.



the chromosome set with only one member of each chromosome pair
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...

For instance, a human germ cell (a sperm or an egg cell) is haploid, which means it contains only one of each of the 23 chromosomes of the human genome, or it only has half the diploid (2n) number of a human somatic cell (which is 46).


is the quality of a cell or organism having a single set of chromosomes. Organisms that reproduce asexually are . Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent).

Doubled haploidy
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Haploid, Diploid
Diploid cells (2N) have two complete sets of chromosomes. The body cells of animals are diploid.
Haploid cells have one complete set of chromosomes. In animals, gametes (sperm and eggs) are haploid.

Cells that contain only one member of each homologous pair of chromosomes ( number = n). At fertilization, two gametes fuse to form a single cell with a diploid number of chromosomes.

Haploid
Only one copy of each chromosome per cell. (Prokaryotes are haploid, although more than one copy of a chromosome may be transiently present in the cell, depending on the rate of DNA replication and the growth rate.) ...

cell
(hap-loyd) [Gk. haploos, single + ploion, vessel]
A cell containing only one set of chromosomes (n).
Hardy-Weinberg equilibrium ...

haploid /HAP-loid/ adj. (1) in the case of a single-celled eukaryotic organism, having a single complete set of chromosomes; (2) in the case of a multicellular eukaryotic organism, having a single complete set of chromosomes in each somatic cell.

(meaning simple in Greek) cells bear one copy of each chromosome.

Haploid: A single set of chromosomes (half the full set of genetic material) as in the egg and sperm (germ)cells of animal ...

cells containing one copy of each chromosome.
hemoglobin a red pigment that binds oxygen and carbon dioxide molecules and carries them through the bloodstream.
herbivores animals that eat plants.

Haploid cell. A cell containing only one set, or half the usual (diploid) number, of chromosomes.

: The number of chromosomes in a sperm or egg cell, half the diploid number. NHGRI ...

Haploid having one set of chromosomes
(haplo = half; ploid = a set of chromosomes)
Hematoma local swelling‚ tumor‚ or bruise filled with blood
(hemo = blood; -oma = tumor) ...

number (n): The number of chromosomes in the gamete after meiosis. In humans, the number is 23.

Haploid - Having only one set of chromosomes.
Jacket Cell - A component of the cell layer that covers the reproductive organs of plants and prevents them from drying out.

and diploid are terms referring to the number of sets of chromosomes in a cell. Gregor Mendel determined his peas had two sets of alleles, one from each parent. Diploid organisms are those with two (di) sets.

Haploid - gametophyte, produces gametes (then syngamy)
Diploid - sporophyte, produces spores (meiosis)
Primitively, the haploid state is the dominant stage
the diploid is only briefly seen ...

cells can live indefinitely in the condition. However, if two cells of opposite mating types meet, they can fuse and enter the diploid phase of the cell cycle.
This is not as rare event as you might expect.

Haploid (n)-- one set chromosomes
Diploid (2n)-- two sets chromosomes
Most plant and animal adults are diploid (2n)
Eggs and sperm are haploid (n) ...

The reduced, or N, number of chromosomes, typical of gametes, as opposed to the diploid, or 2N, number found in somatic cells. In certain groups, mature organisms may have a number of chromosomes.

Haploid a term referring to cells which contain only a single copy of each chromosome.
Hardy-weinberg principle states that the proportion of dominant and recessive alleles of a particular gene remains the same if certain conditions are met.

The stage of a plant life cycle that produces gametes (by mitosis). It alternates with a diploid sporophyte generation.

The haploid (1N) products of meiosis are known as gametes.
During meiosis, homologous chromosomes align with one another in a process known as synapsis.

The nuclei of the sperm and ovum fuse in fertilization.
The ruptured follicle develops into the corpus luteum.
If the released oocyte is not fertilized, the corpus luteum degenerates.

A. 2 haploid daughter cells
B. 4 diploid daughter cells
C. 2 diploid daughter cells
D. 4 haploid daughter cells - CORRECT!! ...

Gametophyte. stage in the life cycle of a plant
Generation time. The time period from birth to average age of reproduction
Genetic drift. Changes in allele frequencies that can be ascribed to random effects ...

Meiosis produces haploid cells, which contain just one member of every chromosome pair characteristic of an organism.

Plants exhibit life cycles that involve alternating generations of diploid forms, which contain paired chromosome sets in their cell nuclei, and forms, which only possess a single set.

During the growth and extension of the tube, the generative nucleus, behind the tube nucleus, divides by mitosis to produce 2 male haploid gametes. The pollen tube enters the ovule through the micropyle and penetrates the embryo sac wall.

See also: See also: Diploid, Chromosome, Organ, Cell, Cells

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