genetic segregation
[/dʒəˈnɛtɪk ˌsɛɡrɪˈɡeɪʃən/]
nounfemininepl: segregações genéticas
segregação genética
1. The separation of alleles or chromosomes during meiosis, resulting in gametes with different genetic compositions
Genetic segregation occurs during meiosis when homologous chromosomes separate, ensuring each gamete receives only one allele for each gene.
A segregação genética ocorre durante a meiose quando os cromossomos homólogos se separam, garantindo que cada gameta receba apenas um alelo para cada gene.
2. Mendel's principle that describes how traits are inherited and distributed in offspring based on the separation of alleles
The law of genetic segregation explains why two heterozygous parents can produce offspring with recessive traits.
A lei da segregação genética explica por que dois pais heterozigotos podem produzir descendentes com traços recessivos.
3. The observable pattern of trait distribution in successive generations following predictable ratios
In his pea plant experiments, Mendel observed genetic segregation resulting in a 3:1 phenotypic ratio in the F2 generation.
Nos seus experimentos com plantas de ervilha, Mendel observou segregação genética resultando em uma proporção fenotípica de 3:1 na geração F2.
This term is fundamental to biology education in both Brazilian and American curricula, typically introduced at the high school level when studying Mendelian genetics. It is essential terminology in genetic counseling and medical genetics in both countries. The concept is taught through Gregor Mendel's classical experiments and remains a cornerstone of understanding inheritance patterns in modern genetics.
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