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Frage 42

In rabbits, allele B is dominant to allele b. Which genotypes produce exactly the same phenotype?

  1. The mixed pair Bb and the recessive pair bb
  2. The dominant pair BB and the recessive pair bb
  3. None of them: all three genotypes look different
  4. The dominant pair BB and the mixed pair BbRichtige Antwort

Erklärung

One dominant allele is enough for the dominant characteristic to appear, so a rabbit with two dominant alleles looks the same as one with a mixed pair. Expecting three appearances because there are three genotypes overlooks the masking that removes any visible difference between those two.

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Frage 42: In rabbits, allele B is dominant to allele b. Which… · Genetics Basics · Questena