DNA profiling was less useful in identifying remains from the 2004 tsunami than in criminal cases because
A) the DNA after the tsunami was too wet to analyze.
B) the tsunami left few bodies with collectible DNA.
C) not enough repeats were profiled.
D) none of the victims were listed in the FBI's files.
B) the tsunami left few bodies with collectible DNA.
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Regions at the ends of chromosomes that prevent chromosomes from sticking to each other are called ____
a. satellites b. telomeres c. centromeres d. q zones e. p zones
Match the statement with the type of DNA damage.
A) depurination B) pyrimidine dimer formation C) deamination 1) caused by spontaneous hydrolysis of a glycosidic bond 2) induced by ultraviolet light 3) DNA glycosylase can repair this damage 4) occurs with G but not C
The stage of Lyme disease that is characterized by arthritis is the
A. primary. B. third. C. second. D. fourth.
It has been recently determined that the gene for Duchenne muscular dystrophy (DMD) is more than 2000 kb (kilobases) in length; however, the mRNA produced by this gene is only about 14 kb long. What is a likely cause of this discrepancy?
A) The introns have been spliced out during mRNA processing. B) The DNA represents a double-stranded structure, whereas the RNA is single-stranded. C) The exons have been spliced out during mRNA processing. D) When the mRNA is produced, it is highly folded and therefore less long. E) There are more amino acids coded for by the DNA than by the mRNA.