Q- At which of these vertebral levels does the trachea bifurcate?
A- Seventh cervical
B- First thoracic
C- Fourth thoracic
D- Sixth thoracic
Q- Which of the following differentiates Dubin-Johnson syndrome from Rotor syndrome?
A- Black pigmentation of the liver
B- Conjugated hyperbilirubinemia
C- Level of liver enzymes
D- Mode of inheritance
Q- Which one of the following proteins surrounds the nuclear envelope?