_____ corrects the genetic defect in an individual with a genetic disorder by _____
a. Enzyme replacement therapy; delivery of a normal gene to affected cells in the body
b. PGD; removing affected cells from an early stage embryo
c. Gene therapy; PGD
d. Gene therapy; delivery of a normal gene to affected cells in the body
e. Chorionic villus sampling; constructing karyotypes from affected cells
d
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The degree of disorder is called _________
A. energy B. work C. entropy D. potential difference E. ecology
Which of the following is not true about the sequencing of Neanderthal DNA?
A. Neanderthal mitochondrial DNA shows the same haplotypes as human DNA. B. Small amounts of Neanderthal DNA are cloned into a library, and the cloned sequences are sequenced at random. C. Sequences obtained from random clones are compared with existing human genome and chimpanzee genome data bases. D. Segments derived from Neanderthal DNA can be distinguished from segments derived from bacteria or insects by computerized analysis. E. The data provides evidence that modern humans and the Neanderthals shared a common ancestor about 700,000 years ago.
Which level of organization includes all others?
A. cell B. tissue C. organ D. organism E. population
Three species of tigers have gone extinct due to overharvesting or habitat destruction. This is an example of
A. mass extinction. B. adaptive radiation. C. sympatric speciation. D. increased extinction rate by human activity. E. background extinction rate.