You are asked to study a new species, and you are presented with a miniscule amount of DNA from that species. If you do not find a way to increase the volume of the DNA sample, you will not be able to work with the sample at all. which of these techniques amplifies DNA?
A. electrophoresis.
B. PCR.
C. DNA fragmentation.
D. cladistics.
B. PCR.
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Which of the following statements DOES NOT support the hypothesis that neoteny contributed to the evolution of modern humans from our common ancestor with chimpanzees?
A. Juvenile Great Apes have large heads (relative to body size) and are less hairy than adult Great Apes. B. Neoteny involves changes in the developmental timing of gene regulation, consistent with the observation that the genome sequence of human and chimp are 99% identical. C. It has been suggested that the human mentality, characterized by questioning and playfulness, are characteristics of juvenile Great Apes. D. Sexual maturity occurs earlier in Great Apes than in humans.
What is the current status of the Human Genome Project? What will be an ideal response?
The frequency of a certain genotype in a population is called _____________________. Fill in the blank(s) with the appropriate word(s)
Which of the following is NOT a nitrogenous waste product produced by the excretory systems of animals?
A. ammonia B. urea C. bile pigments D. uric acid