The chromatin remodeling and histone acetylation were associated with transcription activation.是什么意思？

The chromatin remodeling and histone acetylation were associated with transcription activation.

真核基因活化与染色质的重建及组蛋白的乙酰化相关.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

chromatin

n. 染色质，核染质；

例句
The chromatin remodeling and histone acetylation were associated with transcription activation.
真核基因活化与染色质的重建及组蛋白的乙酰化相关.

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

histone

n. 组蛋白；

例句
The chromatin remodeling and histone acetylation were associated with transcription activation.
真核基因活化与染色质的重建及组蛋白的乙酰化相关.

acetylation

n. 乙酰化作用；

例句
The chromatin remodeling and histone acetylation were associated with transcription activation.
真核基因活化与染色质的重建及组蛋白的乙酰化相关.

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

associated

vt. 合伙，合营，联合，结合，联想；vi. 联系(associate的过去式和过去分词)，联盟，陪伴；n. 合伙人，伴侣，同志，联想物，附随物，会员集体；adj. （用于联合企业的名称）联合的，有关联的，联合的；

例句
Genetic abnormalities are more often associated with faults in paternal DNA than in maternal DNA.
相对于母本DNA,基因畸变往往更多地与父本DNA上的缺陷相关。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

transcription

--

例句
The chromatin remodeling and histone acetylation were associated with transcription activation.
真核基因活化与染色质的重建及组蛋白的乙酰化相关.

activation

n. 活化，激活，[化]活化作用，致活；

例句
A computer controls the activation of an air bag.
电脑控制着气囊的启动。