Electrophoresis draws individual strands of dna across a gel gradient. this process displays the length of each piece of dna in a unique code of lines. this type of technology allows scientists to —

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.

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous

Abacteriophage typically attaches to the bacterium and then