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Identify which genotype parent combination(s) would yield the following phenotypes in mouse offspring:
· only white fur offspring
· only black fur offspring
· mixture of black and white offspring (two different genotype combinations possible)

(This is a written response).

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wiseowl2018

Answer:

· Only white fur offspring: The homozygous recessive.

· Only black fur offspring: The homozygous dominant.

· Mixture of black and white offspring: The heterozygous codominance.

Explanation:

  • When there is same types of alleles in the genotype the condition is known as homozygous.
  • If both alleles are dominant or recessive the phenotype will be Black or white.
  • There is another phenomenon when both the alleles are expressed equally giving phenotype which contains both trait is known as codominance.
  • The third statement is for the codominance phenomenon.

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