a level biology - Explain how the fox coat undergoes seasonal colour change

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zarahh09
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Explain how the fox coat undergoes seasonal colour change

is it because : The foxes produce fewer MSH receptors in the summer. Without these receptors, MSH has no effect and no melanin is made in the hair follicles.
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qwert7890
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(Original post by zarahh09)
Explain how the fox coat undergoes seasonal colour change

is it because : The foxes produce fewer MSH receptors in the summer. Without these receptors, MSH has no effect and no melanin is made in the hair follicles.
Is there an associated question with context?
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zarahh09
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(Original post by qwert7890)
Is there an associated question with context?
Arctic foxes have brown fur in summer and white in winter, the winter coat grows under the brown coat in the summer.

When does the winter coat become visible?
Winter coat is grown during summer. It grows under the brown summer coat and is revealed when the summer coat is moulted in autumn.
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