小中大【求助】求高手指点一下~~~
最近小弟看一篇文献,里面有这样一句话:Interestingly, heterochromatin silencing is also partly compromised in strains with mutations in two different DNA polymerase-α subunits.
搞不懂heterochromatin silencing到底是什么意思,异染色质不就是不表达的基因吗?怎么又加了一个沉默啊 那样一来意思难道就是异染色质区表达了?!
拜求各位大神指点一下啊 实在搞不懂……谢谢啦谢谢啦~~
另外,文献说"DNA polymerase-α primase is required before elongation by DNA polymerase-ε”,就这一点也不是很懂,望高手解释一下,刚入门小弟一个 求带领~~~:t(