2952
The genes expressed during the embryonic ( zeta ) or fetal and adult stage ( alpha 2 and alpha 1 ) can be modified by point mutations which affect either the processing - translation of mRNA or make the polypeptide chains extremely unstable .
 GENE: zeta; GENE: alpha 2; GENE: alpha 1
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: zeta; GENE: alpha 2; GENE: alpha 1