Which of the following is often used in forensic science to distinguish one sequence of DNA from another by comparing the sequence of the strands at specific loci?
A. DNA fingerprinting
B. gene therapy
C. antisense therapeutic
D. cloning
Answer: A
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In what way are monotremes similar to more ancestral chordate lineages, as opposed to more recently evolved mammals?
A) Monotremes lay eggs; other mammals bear live young. B) Monotremes perform little parental care; other mammals use lactation to feed offspring. C) Monotremes do not have jaws; other mammals do. D) Monotremes are ectothermic; other mammals are endothermic. E) Monotremes perform external fertilization; other mammals perform internal fertilization.
Viruses defy characterization as living organisms even though they possess nucleic acids and proteins. The reason why viruses are not considered to be alive is because they
A. form spontaneously. B. cannot form spontaneously. C. cannot reproduce without a host cell. D. lack genetic material.
Why would a scientist use DNA fingerprinting to answer a question about human migration?
A) to determine what race a person belongs to B) to determine the paternity of an individual C) to determine the frequency of a particular allele in different populations D) to determine whether a recessive allele gave an advantage in a particular environment
Which of the following is not a possible destination for vesicles leaving the Golgi apparatus?
a. The plasma membrane b. The exterior of the cell c. Lysosomes d. Mitochondria