In protostomes, into what does the blastopore develop?
a. mouth
b. coelom
c. anus
d. germ layer
a. mouth
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Which of the following is not an anatomical change that would be associated with a transition from four to two legs?
A. S-shaped spine B. repositioned foramen magnum C. narrower human foot D. wider stance E. None of the answer options are correct.
Why do plasmids make such excellent cloning vectors?
a. They are small and circular. b. They each have hundreds of restriction endonuclease cut sites. c. They replicate independently of the chromosomal DNA. d. They have uracil instead of thymine.
A person with type B blood can receive a transfusion of either type O blood or type AB blood.
a. True b. False
Meiosis and mitosis are cell processes that involve cell division. Which other statement is true about both meiosis and mitosis?
A) Both produce cells that contain half of the genetic information of the parent cell. B) Both produce cells that are used by the organism for repairing tissue damage. C) Both duplicate DNA and divide cytoplasm to create daughter cells. D) Both produce gametes for sexual reproduction.