Genes don't blend.
Mendel discovered that pure-bred plants did not produce offspring with blended traits.
In general, offspring appear to be a mixture of parental characteristics. However, Mendel found that this is not true for the pea plant traits that he chose to study. Pure-bred pea plants when crossed did not produce offspring with blended traits. For example, one might expect that a cross between pure-bred green-seeded and pure-bred yellow-seeded pea plants to produce offspring with seeds of an intermediate green-yellow color. After all, color blending happens when paint is mixed together. However, Mendel found that this cross produced offspring with only one color yellow. No intermediate blends were seen, and the green color seemed to have disappeared.
mendel, pure-bred pea plants, parental characteristics, pea plant traits, color blending, offspring, blended traits, seeds,intermediate blends, mixture.
- ID: 16169
- Source: DNALC.DNAFTB
DNAFTB Animation 3: Gregor Mendel explains that breeding short and tall pea plants didn't produce a medium-sized plant.
Mendel deduced that pure-bred parents have two copies of the same gene for each trait.
DNAFTB Problem 3:Breed pea plants to observe flower color.
Repeat Mendel's experiments with an eighth trait.
DNAFTB Problem 4: Cross pure-bred pea plants to identify dominant flower color.
DNAFTB Concept 4: Mendel identifies dominant and recessive genes.
DNAFTB Animation 4: Gregor Mendel explains the rules of inheritance.
DNAFTB Animation 2: Gregor Mendel explains how he discovered that genes come in pairs by studying pea plants.
Children resemble their parents.
DNAFTB Problem 1: Test your knowledge of Mendel's techniques.