Genes Come in Pairs

Mendel deduced that pure-bred parents have two copies of the same gene for each trait.

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16154. Genes Come in Pairs

DNAFTB Animation 2: Gregor Mendel explains how he discovered that genes come in pairs by studying pea plants.

  • ID: 16154
  • Source: DNALC.DNAFTB

16182. Some genes are dominant.

DNAFTB Animation 4: Gregor Mendel explains the rules of inheritance.

  • ID: 16182
  • Source: DNALC.DNAFTB

16169. Concept 3: Gene's don't blend.

Mendel discovered that pure-bred plants did not produce offspring with blended traits.

  • ID: 16169
  • Source: DNAFTB

16181. Some genes are dominant.

DNAFTB Concept 4: Mendel identifies dominant and recessive genes.

  • ID: 16181
  • Source: DNALC.DNAFTB

16168. Problem 2: Genes come in pairs

Repeat Mendel's experiments with an eighth trait.

  • ID: 16168
  • Source: DNAFTB

16190. Some genes are dominant.

DNAFTB Problem 4: Cross pure-bred pea plants to identify dominant flower color.

  • ID: 16190
  • Source: DNALC.DNAFTB

16207. Problem 5: Genetic inheritance follows rules.

Perform a dihybrid cross.

  • ID: 16207
  • Source: DNAFTB

16313. Problem 12: Evolution begins with the inheritance of gene variations.

DNAFTB Problem 12:Explore "hybrid vigor."

  • ID: 16313
  • Source: DNALC.DNAFTB

16301. Evolution begins with the inheritance of gene variations.

Animation 12 George Shull used corn to study gene variation.

  • ID: 16301
  • Source: DNALC.DNAFTB

16191. Concept 5: Genetic inheritance follows rules.

Different gene combinations result in different dominant/recessive ratios in offspring.

  • ID: 16191
  • Source: DNAFTB