In Dorset sheep, Callipyge expression is controlled by genom…
In Dorset sheep, Callipyge expression is controlled by genomic imprinting: lambs express the trait only if they inherit the Callipyge allele (CP) from their sire and the normal allele (CN) from their dam. If a normal ram (Ram M) is bred to a Callipyge ewe (Ewe O) what is the probability their offspring will express the Callipyge trait? Ram M was sired by a Callipyge ram and out of a homozygous normal ewe.
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