13) 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.

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.