How can you tell that the karyotype shown here is male?
A) The 23rd pair of chromosomes is XX.
B) The 23rd pair of chromosomes is XY.
C) The 23rd pair of chromosomes is YY.
D) The 23rd pair of chromosomes is YO.
E) There are only 22 pairs of chromosomes.
Answer: B
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Which is not a correct pairing of a bone and its common name?
A. Clavicle - collar bone B. Patella - knee cap C. Scapula - shoulder blade D. Talus - heel E. Tibia - shin
The reason it is more appropriate to call an erythrocyte a "formed element" rather than a "cell" is that erythrocytes
A. are actually dead. B. lack a nucleus and organelles. C. have lots of inclusion molecules. D. are not red. E. can form a rouleau when moving through a capillary.
You look directly at your hand, then turn the palm away from you to look at the dorsal side. This movement is the radius rotating around the ulna and is occurring at the
A) ulnar notch. B) radial notch. C) radial tuberosity. D) ulnar head. E) coronoid process.
The region of skin that provides a tough barrier against pathogens and trauma is the:
A) subcutaneous layer. B) epidermis. C) hypodermis. D) dermis.