Related Experiment Video

Updated: May 5, 2026

Microinjection Method for Anopheles gambiae Embryos
05:39

Microinjection Method for Anopheles gambiae Embryos

Published on: July 7, 2021

4.5K

Heterosis without selectional coadaptation inDrosophila ananassae

B N Singh1

  • 1Genetics Laboratory, Department of Zoology, Banaras Hindu University, 221 005, Varanasi, India.

TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik
|November 21, 2013
PubMed

More Related Videos

Rearing and Long-Term Maintenance of Eristalis tenax Hoverflies for Research Studies10:50

Rearing and Long-Term Maintenance of Eristalis tenax Hoverflies for Research Studies

Published on: May 19, 2018

16.2K
Using the GAL4-UAS System for Functional Genetics in Anopheles gambiae06:29

Using the GAL4-UAS System for Functional Genetics in Anopheles gambiae

Published on: April 15, 2021

6.2K

Related Concept Videos

Frequency-dependent Selection01:21

Frequency-dependent Selection

When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
20.2K
Types of Selection01:46

Types of Selection

Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...
37.5K
Incomplete Dominance01:43

Incomplete Dominance

Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
19.1K
Dihybrid Crosses01:18

Dihybrid Crosses

Overview
61.4K
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.
19.0K
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).
53.1K