24小时热门版块排行榜    

查看: 975  |  回复: 1

一路到头

木虫 (小有名气)

[求助] polydA是什么意思?

polydA是什么意思?

[ 来自小组 正能量之家 ]
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

hxs-520

金虫 (正式写手)

迷途小书虫

【答案】应助回帖


感谢参与,应助指数 +1
一路到头(myprayer代发): 金币+1, 赠人玫瑰手有余香,感谢你的慷慨解囊,期待你的精彩。 2013-06-01 10:48:13
网上找的,还比较详细,希望有帮助
Sequences with short repeating units
simple sequence repeat (SSR) are composed of short (1 to 5 bp), tandemly repeating units that are exact in identity and repetition. Although the elongation of SSR tracts may be due to more than one mechanism, much is thought to be the result of slip-strand replication errors. In the process of nascent strand formation, reannealing can occur. And when the strands contain repetitive elements, such as with SSR tracts, the annealing can be imperfect, leading to the addition of the same elements. The errors become permanent when an additional round of replication occurs before they are discovered by repair enzymes.

Some biochemists use the descriptor polymeric and modifications thereon in order to describe a repeat more precisely, e.g.:
homopolymer or heteropolymer
poly()
        dU/dY
        dU.dY
        dU:dY
        poly(dU).poly(dY)
    polypurine.polypyrimidine

The most abundant SSR tracts are the homopolymer repeats poly(dA).poly(dT) and poly(dG).poly(dC).
One world, one dream
2楼2013-06-01 03:17:30
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 一路到头 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[基金申请] 关于代码变化问题,想知道的进来 +3 且听虎啸 2026-08-07 5/250 2026-08-07 16:50 by wdc28
[基金申请] 关于filecode +3 布布和一二 2026-08-07 4/200 2026-08-07 16:34 by 医学老男孩
[基金申请] filecode与中标关系的预测 +3 布布和一二 2026-08-07 3/150 2026-08-07 15:09 by gltch
[基金申请] filecode变化情况 +6 布布和一二 2026-08-07 22/1100 2026-08-07 14:45 by 且听虎啸
[论文投稿] 十年后又回来了,论文投稿求助 +4 哈哈114477 2026-08-01 4/200 2026-08-07 14:39 by jgy194592
[基金申请] 大家散了吧,后缀研究没有意义,别浪费时间了,过好目前的每一天,不要焦虑 +5 Tide man 2026-08-06 7/350 2026-08-07 13:11 by 医学老男孩
[基金申请] 关于豆爷回答的JTJC与%2F数量 +4 yang182083 2026-08-06 6/300 2026-08-07 12:43 by 虫友是什么虫
[基金申请] filecode +14 等待解的谜 2026-08-06 19/950 2026-08-07 12:20 by wlwhappy
[基金申请] 基金中了 +11 laoda193707 2026-08-06 11/550 2026-08-07 10:54 by TT和NN
[基金申请] filecode +8 布布和一二 2026-08-06 11/550 2026-08-06 20:41 by tangpu318
[基金申请] 求各位大神看下 100+6 hpkpkpkp 2026-08-05 33/1650 2026-08-06 14:49 by zhiyanjiang
[基金申请] 影响面上的因素 +8 布布和一二 2026-08-05 11/550 2026-08-06 10:41 by 宝贝虫子
[基金申请] 8月时间戳变的,举个手。玩一下,释放压力 +9 archvillain 2026-08-04 11/550 2026-08-05 20:06 by wlwhappy
[基金申请] 好消息?这个有何含义??? +8 Tide man 2026-08-05 10/500 2026-08-05 16:14 by xmuxiaoyu
[考博] 【2027博士申请】纳米药物递送方向 20+3 13586093586 2026-08-03 4/200 2026-08-05 09:59 by lfy8008
[基金申请] 有没有H口的?有收到消息的吗? +3 超级海虾 2026-08-04 3/150 2026-08-04 17:26 by 学教育滴
[基金申请] 纯娱乐,不喜欢勿喷 +7 Tide man 2026-08-04 10/500 2026-08-04 15:10 by loufangrui
[基金申请] 面上提前没消息,有中的吗 +14 archvillain 2026-08-02 18/900 2026-08-04 14:42 by archvillain
[基金申请] 娱乐 +4 Tide man 2026-08-03 4/200 2026-08-04 11:51 by wgch518
[基金申请] 什么时候能放榜呀? +3 Jacob678 2026-08-03 3/150 2026-08-03 16:14 by gltch
信息提示
请填处理意见