Pertanyaan
Why did all the F1 offspring of Mendel's purple and white flowered pea plants always look like one of the two parental varieties?
Jawaban
Penjelasan
Step1:
Understanding Genetic VarietiesIn genetics, there are two types of traits:
dominant and recessive. A dominant trait is one that will appear in the offspring if one of the parents contributes it. A recessive trait only appears when both parents contribute it.Step2:
Mendel's Experiment Mendel conducted an experiment with pea plants, where he crossed a purple-flowered plant with a white-flowered plant. The F1 generation (first filial generation) all had purple flowers, indicating that the purple flower trait was dominant over the white flower trait.
Step3:
Dominant AlleleThe reason why all the F1 offspring of Mendel's purple and white flowered pea plants always looked like one of the two parental varieties is because one of the alleles was dominant. In this case, the allele for purple flowers was dominant over the allele for white flowers.
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