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Question

A reptilian character of protherian is presence of

A
Left aortic arch
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B
T-shaped clavicle
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C
Diaphragm
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D
Seven cervical vertebrae
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Solution

The correct option is B T-shaped clavicle
B. T-shaped clavicle
EXPLANATION: T-shaped clavicle is mostly found in tetrapods. Presence of T-shaped clavicle is the character of reptiles. In protherians pectoral girdle is associated with T-shaped clavicle. The bones, which attach each upper limb to the axial skeleton form the pectoral girdle.

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