蝇

The SOD activity decreased and MDA concentration increased significantly （P〈 0.05 ） with prolonged exposure and increased concentration of ponceau 4R, that was fitted with a time-dose-response relationship.

随着胭脂红染毒时间的延长和染毒浓度的增加，雌雄果蝇体内SOD活力明显下降、MDA含量明显升高（P〈0.05），呈剂量-反应关系。

Up to now,30 species of virus,100- plus species of bacteria and30 species of protozoon have been discovered.

蝇类传播的微生物很多，已证实病毒约30种，细菌100多种，原虫30多种并可携带多种蠕虫卵等。

Results Same conservative sites and key catalytic sites existed among SjLDH and LDHs from other species. Similarity of SjLDH compared to CsLDH, TvLDH and HsLDH was 75%, 17%, 58%-60% respectively. Phylogenetic analysis demonstrated that the evolution relation between SjLDH and DmLDH was closer than the relation between SjLDH and CeLDH, the relationship between SjLDH and HsLDH-B,-C was closer than HsLDH-A. Three trans-membrane regions were found, the region of 98aa-106aa in three hydrophilia regions located outside of membrane was inferred as the major antigen epitope. This antigen epitope had significant difference with LDHs from protozoon （ Pf ., Tg ., Tv .） and had 1-3 amino acid residue difference with MmLDH, HsLDH-A,-B,-C, and was the same with CsLDH. One of the key catalytic residues and substrate binding loop were located in this region. Tertiary structure demonstrated that 98aa-106aa was on the surface of the protein and formed a substrate binding loop, other two key catalytic sites were at the position near the loop.

结果 SjLDH与其他物种的同源序列含相同的保守位点及催化活性位点，与华支睾吸虫LDH同源性最高为75％，与阴道毛滴虫LDH同源性最低为17%，与人LDH（HsLDH-A，-B，-C）的同源性为58%~60％； SjLDH与果蝇的进化距离较秀丽隐杆线虫为近，3种人LDH中与HsLDH-B、-C的进化距离较HsLDH-A为近；该蛋白具有3个跨膜区域，3个高亲水性区域，主要的线性表位98aa~106aa位于膜外，与原虫LDH相同区域差异显著，而与其他LDH有1~3个氨基酸的差异，关键催化位点之一及底物丙酮酸结合区域位于该区域，蛋白质同源模建分析表明该区域位于蛋白表面形成环状结构，3个关键催化位点位于该区域或在其附近。

Any of various small ,biting,two - winged flies,such as a punkie or black fly.

蚊，蚋一种小的咬人的双翼飞蝇，如咬人小飞虫或黑蚊

This study demonstrates that gene pyramiding is feasible in animal breeding and the interaction between genes may affect the final results.

同时说明基因之间的互作对基因聚合后的最终效果可能存在影响。关键词基因聚合；果蝇；模拟

Raff." Asymmetric segregation of Numb: a mechanism for neural specification from drosophila to mammals ."

Raff。〈 Numb的非对称隔离：从果蝇到哺乳动物的神经分化机制〉《自然神经科学》第5卷(2002)： 1265-1269页

First, scientists bred red-eyed fruit flies from brown-eyed parents.

首先，科学家育成红眼睛的果蝇，由褐色眼睛的父母。

But researchers do not know how where the flies redo in north of America.

但研究者们还不知道蚤蝇能在北美产生多好的效果。

Cm long, the back was dark gray Reptilia quadruped animals gecko, smooth as a mirror in the wall or ceiling shuttle freely, prey mosquitoes, flies, spiders and other small insects and will not fall off.

长约10厘米、背呈暗灰色的爬行纲四足小动物壁虎，能在光滑如镜的墙面或天花板上穿梭自如，捕食蚊、蝇、蜘蛛等小虫子而不会掉下来。

At first sight, the pattern of this kind of profit of Baidu appears very brillant, but be opposite offer a price is high person bag mount, the intrigue of Baidu really as similar as certain marketplace butcher, put ad in rank front row for instance, make clear in inconspicuous place only next " promotion ", this almost with fascia submit a written statement to a higher authority " watermelon 5 wool ", small character of a small as the head of a fly follows below " 100 grams " be exactly the same.

乍一看，百度的这种赢利模式似乎非常高明，但在对出价高者的包装上，百度的伎俩确实与某些市井小贩类似，比如把广告放在排名前列，然后只在不显眼的地方注明"推广"，这几乎与招牌上书"西瓜5毛"，下面跟一行蝇头小字"100克"如出一辙。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。