Why is the polymerase chain reaction (PCR) so useful for DNA fingerprinting?
A) It can produce millions of copies from tiny amounts of DNA.
B) It can be used to compare DNA from different individuals.
C) It can identify the complete sequence of a gene.
D) It can allow scientists to visualize the DNA of specific individuals.
A
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Nutrient-rich blood flows from the placenta to the fetus via the
a. ductus arteriosus. b. fossa ovalis. c. ductus venosus. d. foramen ovale. e. allantois.
Which group of organisms does not depend directly on sunlight for energy? I. Terrestrial producers II. Animal consumers III. Decomposers
A. I only B. II and III only C. II only D. III only E. I and III
Why was Haemophilus influenzae chosen by Craig Venter to test his whole-genome shotgun sequencing method?
What will be an ideal response?
Which muscle is responsible for bending the leg at the knee and turning the foot downward?
a. Gastrocnemius b. Deltoid c. Biceps femoris d. Achilles tendon e. Latissimus dorsi