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The average occurrence of mutations in a species per a given unit of time.

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التحسين

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نوع المصطلح: اسم
المرادف (المرادفات)
مسرد المصطلحات
المجال / النطاق: بيولوجيا
الفئة: بيولوجيا الخلايا
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أدب; أدب عام

The metrical unit by which a line of poetry is measured. A foot usually consists of one stressed and one or two unstressed syllables. An iambic foot, which consists of one ...

мутација

تعليم; مفردات SAT (اختبار الكفاء الدراسية)

The act or process of change.

мутација

بيولوجيا; المَجين؛ جينوم

Any heritable change in DNA sequence. See also: polymorphism.

мутација

أنثروبولوجيا، علم الإنسان; الأنثربولوجيا الفيزيائية

An alteration of genetic material such that a new variation is produced. For instance, a trait that has only one allele (A) can mutate to a new form (a). A mutation can be a ...

нервен систем

بيولوجيا; بيولوجيا الخلايا

One of eleven major body organ systems in animals; coordinates and controls actions of internal organs and body systems, receives and processes sensory information from the ...

нето секундарна продуктивност

بيولوجيا; بيولوجيا الخلايا

The rate at which consumer and decomposer biomass is produced in a community.

нерви

بيولوجيا; بيولوجيا الخلايا

Bundles of neuronal processes enclosed in connective tissue that carry signals to and from the central nervous system.

нектонски организми

بيولوجيا; بيولوجيا الخلايا

Also called swimmers. One of the two main types of organisms in the pelagic zone of the marine biome.

нефрон

بيولوجيا; بيولوجيا الخلايا

A tubular structure that is the Þltering unit of the kidney; consists of a glomerulus and renal tubule.

природна селекција

بيولوجيا; بيولوجيا الخلايا

The process of differential survival and reproduction of Þtter genotypes; can be stabilizing, directional, or disruptive. Better adapted individuals are more likely to survive to ...