TLS Online TPP Program

#Question id: 37959


In the context of pollen embryogenesis, which of the following best describes the "commitment to androgenesis"? 

#Plant Biotechnology
  1. The overexpression of pollen maturation genes immediately after meiosis. 
  2. The abolition of pollen maturation gene expression. 
  3. The doubling of mitochondria prior to the first sporophytic division. 
  4. The exclusive upregulation of gametophytic pathway genes.