Axons are short extensions of the cell body of the neuron ar
     Axons:  are short extensions of the cell body of the neuron  are involved in the synthesis and release of neurotransmitters  are fairly tolerant of the toxic effects of chemicals  receives messages from other nerve cells  Among over 2000 approved food additives:  Evaluation for aneuploidy involves determination of the gain or loss of complete sets of chromosomes.  Most tests evaluate phenotypic changes and attempt to draw conclusions about the actual gene damage.  Evaluation of chromosomal damage involves looking for evidence of alteration in chromosomal structure and number.  Positive controls always are included. 
  
  Solution
Answers :
1. d. Axons are involved in the synthesis and release of neurotransmitters.
2. b. Most tests evaluate phenotypic changes and attempt to draw conclusions about the actual gene damage.

