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Related Concept Videos

Monohybrid Crosses01:20

Monohybrid Crosses

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Monohybrid Crosses01:20

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Law of Independent Assortment02:03

Law of Independent Assortment

While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
Law of Independent Assortment02:03

Law of Independent Assortment

While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
Chromosomal Theory of Inheritance01:39

Chromosomal Theory of Inheritance

In 1866, Gregor Mendel published the results of his pea plant breeding experiments, providing evidence for predictable patterns in the inheritance of physical characteristics. The significance of his findings was not immediately recognized. In fact, the existence of genes was unknown at the time. Mendel referred to hereditary units as “factors.”
Dihybrid Crosses01:18

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Related Experiment Video

Updated: May 30, 2026

A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae
10:39

A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae

Published on: September 17, 2020

Mendel, 150 years on.

T H Noel Ellis1, Julie M I Hofer, Gail M Timmerman-Vaughan

  • 1Institute of Biological, Environmental & Rural Sciences, Aberystwyth University, Gogerddan Campus, Aberystwyth, Ceredigion SY233EB, UK.

Trends in Plant Science
|July 22, 2011
PubMed
Summary
This summary is machine-generated.

Gregor Mendel

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Published on: September 29, 2011

Area of Science:

  • Genetics
  • Molecular Biology
  • Plant Science

Background:

  • Reviewing Gregor Mendel's foundational work on inheritance mechanisms.
  • Examining pea (Pisum sativum) gene segregation studies from the 18th and 19th centuries.

Observation:

  • Four of Mendel's seven pea gene characters have been molecularly identified.
  • Investigating the molecular basis of gene inheritance and character segregation.

Findings:

  • Identified genes encode enzymes (R, Le), a regulator (I), and a transcription factor (A).
  • Characterized mutations include transposon insertion (r), amino acid insertion (i), splice variant (a), and missense mutation (le-1).

Implications:

  • Understanding the molecular nature of Mendelian genes provides insight into inheritance.
  • Discusses the potential molecular basis for the remaining uncharacterized pea traits.