The diagram below represents a structure found in most cells. What does section A in the diagram most likely represent?
O A. chromosome undergoing a mutation
B. part of a gene for a particular trait
C. protein composed of folded chains of base subunits
OD. biological catalyst

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.