相关实验视频

Updated: Jan 18, 2026

Assessing Species-specific Contributions To Craniofacial Development Using Quail-duck Chimeras
09:38

Assessing Species-specific Contributions To Craniofacial Development Using Quail-duck Chimeras

Published on: May 31, 2014

11.3K

三种加利福尼亚的遗传多样性模式最好通过气候和景观变化来解释

Phred M Benham1,2, Carla Cicero1, Michelle M Davila1

  • 1Museum of Vertebrate Zoology, University of California Berkeley, Berkeley, California, USA.

Molecular ecology
|September 8, 2025
PubMed
概括

市场狩猎对的遗传多样性影响最小. 相反,气候和景观的变化导致了加利福尼亚州的人口波动和遗传负载,甘贝尔和山种群.

关键词:
加利福尼亚州保护基因组学项目它们属于Odontophoridae.保护基因组学 保护基因组学人口学 人口学 人口学遗传多样性 遗传多样性

更多相关视频

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern04:10

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern

Published on: March 8, 2020

6.6K
Genetic Variant Detection in the CALR gene using High Resolution Melting Analysis08:46

Genetic Variant Detection in the CALR gene using High Resolution Melting Analysis

Published on: August 26, 2020

5.3K

相关概念视频

Genetics of Speciation02:16

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
20.9K
Genetic Variation01:25

Genetic Variation

Genetic variation is the diversity in DNA sequences found among individuals of the same species. This diversity is crucial for a species' survival because it helps organisms adapt to environmental changes. Genetic variation begins with fertilization, where an egg and sperm cell merge. Each of these cells carries 23 chromosomes, up to 46 in the fertilized egg. Chromosomes are long DNA strands that contain genes, the basic units of heredity.
Genes exist in different versions called alleles,...
1.2K
Gene Flow02:39

Gene Flow

Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
37.5K
Formation of Species01:31

Formation of Species

Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
44.7K
Hardy-Weinberg Principle01:49

Hardy-Weinberg Principle

Diploid organisms have two alleles of each gene, one from each parent, in their somatic cells. Therefore, each individual contributes two alleles to the gene pool of the population. The gene pool of a population is the sum of every allele of all genes within that population and has some degree of variation. Genetic variation is typically expressed as a relative frequency, which is the percentage of the total population that has a given allele, genotype or phenotype.
76.0K
Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).
62.1K