Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Genetic Lingo01:11

Genetic Lingo

Overview
Background and Environment Affect Phenotype02:27

Background and Environment Affect Phenotype

Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
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.
Law of Segregation01:49

Law of Segregation

When crossing pea plants, Mendel noticed that one of the parental traits would sometimes disappear in the first generation of offspring, called the F1 generation, and could reappear in the next generation (F2). He concluded that one of the traits must be dominant over the other, thereby causing masking of one trait in the F1 generation. When he crossed the F1 plants, he found that 75% of the offspring in the F2 generation had the dominant phenotype, while 25% had the recessive phenotype.
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, which...
Test Cross01:39

Test Cross

Alleles are different forms of the same gene. Humans and other diploid organisms inherit two alleles of every gene, one from each parent.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

How precise are mutation rate estimates? Comparison of different approaches to estimate de novo mutation rates.

Heredity·2026
Same author

Evolution of a ZW sex determination system in sticklebacks.

Science advances·2026
Same author

Assessing the Genetic Health and Conservation Value of an Introduced Urban Population of a Critically Endangered Parrot.

Evolutionary applications·2026
Same author

Balanced polymorphism underlies long-standing adaptation for seasonal camouflage in the least weasel.

Communications biology·2026
Same author

Population Genomics of Endangered Lenoks (Brachymystax spp.) in China Reveals the Presence of Cryptic Species.

Systematic biology·2026
Same author

Changing food availability and its effect on the heritability of offspring size in woodland passerine birds.

The Journal of animal ecology·2025
Same journal

Population Differentiation and Polygenic Selection in the Finnish Ayrshire Cows Selected on Genomic Information.

Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie·2026
Same journal

Impact of Estimating Genetic Variance in the Target Group on Reliability Metrics of the Linear Regression Validation Method Under Selection.

Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie·2026
Same journal

Evaluating the Predictive Value of Estimated Breeding Values of Piétrain Sires for Uniformity and Survival in Their Crossbred Progeny.

Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie·2026
Same journal

Genetic Evaluation of Growth Rate and Kleiber's Ratio Traits in Deccani Sheep Using Bayesian Inference.

Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie·2026
Same journal

Thermal Thresholds and Genetic Sensitivity in Barrel Racing Performance of Quarter Horses Across Temperature-Humidity Indices.

Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie·2026
Same journal

Unravelling the Genetic Structure of Local and Mainstream Red-Pied Cattle Breeds Using Genomics and Extended Pedigree Analysis.

Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie·2026
See all related articles

Related Experiment Video

Updated: Jun 25, 2026

Quantification of Macronutrients Intake in a Thermogenetic Neuronal Screen using Drosophila Larvae
07:24

Quantification of Macronutrients Intake in a Thermogenetic Neuronal Screen using Drosophila Larvae

Published on: June 11, 2020

It's the genotype, stupid!

Juha Merilä

    Journal of Animal Breeding and Genetics = Zeitschrift Fur Tierzuchtung Und Zuchtungsbiologie
    |February 12, 2009
    PubMed
    Summary

    No abstract available in PubMed .

    More Related Videos

    Genotyping of Staphylococcus aureus by Ribosomal Spacer PCR (RS-PCR)
    08:51

    Genotyping of Staphylococcus aureus by Ribosomal Spacer PCR (RS-PCR)

    Published on: November 4, 2016

    Optogenetic Random Mutagenesis Using Histone-miniSOG in C. elegans
    04:51

    Optogenetic Random Mutagenesis Using Histone-miniSOG in C. elegans

    Published on: November 14, 2016

    Related Experiment Videos

    Last Updated: Jun 25, 2026

    Quantification of Macronutrients Intake in a Thermogenetic Neuronal Screen using Drosophila Larvae
    07:24

    Quantification of Macronutrients Intake in a Thermogenetic Neuronal Screen using Drosophila Larvae

    Published on: June 11, 2020

    Genotyping of Staphylococcus aureus by Ribosomal Spacer PCR (RS-PCR)
    08:51

    Genotyping of Staphylococcus aureus by Ribosomal Spacer PCR (RS-PCR)

    Published on: November 4, 2016

    Optogenetic Random Mutagenesis Using Histone-miniSOG in C. elegans
    04:51

    Optogenetic Random Mutagenesis Using Histone-miniSOG in C. elegans

    Published on: November 14, 2016