Question

Question 14 25 ph Why is the P element not active In germline cells that are P cytatype (have P ctoplasp A halrpln RNA Is formed from two adjacent P elements in Inverted orlentaton which : triggers epigenetic methylation of the transposase Inverted repeats A cellular protein in germline cells, but not in somatic cells, blocks intron 3 processing : causing the transposase to be nonfunctional. :Readthrough of cellular transcripts into the P element In the reverse direction lead to the production of double stranded RNA forming between the P transcript and the celular antisense strand. This triggers an epigenetic-base degradation of transposase mRNA : A hairpin RNA is formed by read-through from a P-element promater triggers DNA : methylation of the P-element in germline cells, but not in somatic tdissues.

Answer 1