Which two coat varieties of the Collie can frequently be present within the offspring of the same litter?
Answer
Long-coated Rough Collie and short-coated Smooth Collie
The modern Collie breed exhibits two distinct coat types, both of which can manifest simultaneously in the progeny of a single breeding pair. These two varieties are the long-coated Rough Collie and the short-coated Smooth Collie. The existence of both types in one litter underscores the fact that coat length is determined by genetic factors that can vary even within closely related siblings, although historically, the focus on appearance after royal endorsement led to the standardization of these traits.
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