Match the correct fact to the correct biotechnology procedure.
a) dna probes; used to identify genes in a dna sample.
b) human genome project; a large scale effort to clone a human.
c) polymerase chain reaction; the last step of dna fingerprinting.
d) plasmid; special genes from an organism that will be placed in vectors to be cloned into new organisms.

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Which of the following is not a way in which a vascular plant's xylem and phloem are similar?

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

Which law represents a balanced chemical equation?