Black fur and long tails will be present in half of the offspring of the bbtt x bbtt hybrid.
50% of all creatures will have characteristic long tails and black fur. Explained: The given cross is a form of back cross in which a recessive parent and an organism from the f1 generation are combined. There will be 50% BbTt and 50% BBtt as a result.
The black mouse under investigation may have the BB or Bb genotype, according to Mendelian genetics. It would be cross-tested with a genotype bb (white fur phenotypic) in order to ascertain the genotype.
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