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Segregation


segregation
Mendel's first law; The separation of the members of a homologous pair of chromosomes into different gametes through the process of meiosis
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...
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(2) Genetically, the production of two separate phenotypes, corresponding to two alleles of a gene, either in different individuals ( meiotic segregation) or in different tissues (mitotic segregation).
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The segregation of differentiating traits is Mendel's First Law.
The 3:1 ratio is consistent with each plant having two copies of the "gene" and randomly passing one copy through the gametes (pollen or egg).
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Mendel's law of segregation essentially has three parts.
Alternative versions of genes account for variations in inherited characters. This is the concept of alleles. Alleles are different versions of genes that impart the same characteristic.
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segregation Separation of replicated chromosomes to opposite sides of the cell. Distribution of alleles on chromosomes into gametes during meiosis.
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Segregation The normal biological process whereby the two pieces of a chromosome pair are separated during meiosis and randomly distributed to the germ cells.
Sequence See: base sequence ...
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segregation
the separation of homologous chromosomes during anaphase 1 of meiosis, producing gametes containing only one allele of each gene.
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Law of Segregation
The principles that govern heredity were discovered by a monk named Gregor Mendel in the 1860's. One of these principles is now called Mendel's law of segregation.
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law of segregation
Mendel's first law, stating that allele pairs separate during gamete formation, and then randomly re-form pairs during the fusion of gametes at fertilization.
leaching ...
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Chromosome segregation in meiosis
Meiosis produces four genetically varied gametes ...
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Principle of Segregation
Mendel's principle of segregation states that paired factors (genes) separate during gamete formation (meiosis).
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Post-meiotic segregation
The type of segregation produced when a recombinant DNA molecule contains an uncorrected mismatched base pair; at the next replication, normal base pairing occurs producing one mutant progeny and one wild-type progeny.
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principle of segregation One of Mendel's observations on the behavior of hereditary units during gamete formation.
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Related Terms: Segregation
The separation of allelic differences from one another. Segregation may occur at the first or second division of meiosis, or at the first mitosis after meiosis (postmeiotic segregation).
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: The situation referring to segregation of two or more genes together as a unit. Genetic linkage is thought to arise to accommodate genes that function best in each other's company, i.e.
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The return of an Afrikaner-led National Party government by the overwhelmingly white electorate in 1948 signaled the advent of the policy of apartheid (Afrikaans: "separateness" of the races, or political and social segregation of black and white ...
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The second thing you have to do is coordinate the activities of very large numbers of proteins. DNA replication involves thousands proteins probably. And chromosome segregation probably involves a thousand proteins.
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This statement is often called Mendel's rule of segregation.
If an organism has two unlike factors (we call them alleles) for a characteristic, one may be expressed to the total exclusion of the other (dominant vs recessive).
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Rabs 5, 21 and 22 have all been localized to the early endocytic pathway and have been shown to share a number of characteristics to merit their segregation into a single functional endocytic group.
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In other words cold water makes baby female fish form, it doesn't kill male baby fish. The same embryo could be male or female depending on the temperature it is raised at (i.e. Mendelian segregation does not influence the sex ratio in this species.
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