The elbow and knee are examples of ________ joints.
A. cartilaginous
B. ball-and-socket
C. fibrous
D. synovial
E. immovable
Answer: D
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Reactions that break down food sources to fuel the energy needs of a cell are called anabolic, whereas those that result in net energy storage are called catabolic
A. true B. false
In which soil would the cactus receive the most appropriate amount of water for its needs?
a. soil A b. soil B c. soil C d. It would receive the appropriate amount of water from all the soil types.
Analysis of DNA fragments in gel electrophoresis is based on
A. DNA having an overall negative charge and moving to the positive pole. B. DNA fragments being stained so that they can be seen. C. application of an electric current through the gel causing DNA fragments to migrate. D. larger fragments moving slowly and remaining closer to the wells. E. All of the choices are correct.
Before a desired gene can be spliced into a bacterial plasmid cloning vector, the gene must first be from the original DNA.
A. precisely cut, with a restriction enzyme, B. glued, with ligase, C. injected into a bacterial cell or a virus, having different sequences D. injected into a stem cell, to determine any unwanted traits E. All of the answer choices are correct.