The replication of a DNA molecule during interphase occurs during the
A. first "gap" phase.
B. S phase.
C. second "gap" phase.
D. generation "gap" phase.
E. metaphase.
B
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The part of the cochlea that converts pressure waves (from sounds) into changes in membrane potentials is the
A. scala tympani. B. modiolus. C. helicotrema. D. spiral organ. E. scala vestibuli.
Answer the following statement(s) true (T) or false (F)
1. After epiphyseal plates close in early adulthood, a synostosis remains between the epiphysis and diaphysis. 2. An articulation is any point at which two bones meet. 3. Bony joints are the most common type of joints. 4. Fibrous joints are joints at which two bones are united by hyaline cartilage. 5. Symphyses are the most common type of fibrous joints.
When does the heart begin to beat?
A. At birth B. By week 5 in the embryo C. Early in fetal development D. By week 3 in the embryo E. By the fifth month of development
The appendicular skeleton consists of
A. the bones of the upper and lower limbs. B. the bones of the trunk and lower limbs. C. the bones of the skull, upper and lower limbs. D. the bones of the head, neck, and trunk. E. the bones of the upper and lower limbs, and the bones that connect them to the axial skeleton.