1.The persistence of bacteria throughout evolutionary time is due to their genetic homogeneity (i.e.,sameness).2.They divide by binary fission,without mitosis or meiosis.3.Genetic variation in bacteria is not known to occur,nor should it occur,becaus

来源：学生作业帮助网编辑：六六作业网时间：2024/11/18 04:33:29

1.Thepersistenceofbacteriathroughoutevolutionarytimeisduetotheirgenetichomogeneity(i.e.,sameness).2.

1.The persistence of bacteria throughout evolutionary time is due to their genetic homogeneity (i.e.,sameness).2.They divide by binary fission,without mitosis or meiosis.3.Genetic variation in bacteria is not known to occur,nor should it occur,becaus
1、persistence (n.)持续;持久
bacteria (n.) pl.of bacterium 细菌
evolutionary (a.) 发展的,进化的,渐进的
homogeneity (n.) 同种;同质
这句话大意是：
细菌在整个进化过程中的持续性取决于它们的基因性.
（我也不知道这句话什么意思,只能给你翻译了.）
2、binary 二元的,由二部分构成的
fission 分裂
mitosis 有丝分裂
meiosis 减数分裂
它们直接分裂成两部分,不需要有丝分裂或减数分裂.
（这不是最简单的细胞分裂方式,即无丝分裂么）
3、asexual 无性的
因为细菌是无性生殖,所以细菌中的基因突变是不可知的,理论上不应该发生的.
4、Bacterial (a.)细菌的,细菌引起的
conjugate (vt.)使结合,使成对(vi.)结合(a.)结合的
mutually (ad.)互相,彼此
菌类细胞成对结合在一起彼此交换它们的基因物质（核酸）.
5、它们的基因物质都包含在（细胞核的）核膜中.
（如果这句话和上面几句有上下文联系,这句话应翻译为：）
（他们的基因物质都包含在拟核区域中.）

4，第一个说的是同质性是进化原因，错，第二个说原核生物不进行有丝和减数分裂，错，3说细菌不突变，错，5说原核的基因组都在核中，更错。

1 细菌在进化过程中之所以能存在是因为同质性
2 细菌以二分裂的方式繁殖,没有有丝分裂和减数分裂
3 细菌的基因突变没有形成,也不应该形成,原因在于他们进行无性生殖
4 细菌细胞结合来交换彼此的遗传物质
5 细菌的遗传物质存在于特定的核区域内
1错...同质性不是进化的原因哦
2错..细菌虽然说一般情况下进行二分裂生殖,但是已经有研究证实,细菌存在有...

全部展开

收起

下列叙述有关原核生物是正确的？
1 .遗传的同质性是细菌持续进化的原因。
2.他们主要进行二分裂，而不进行有丝分裂或减数分裂。
3.细菌的基因变异至今没有发现，或者根本没有发生，因为他们采用无性繁殖方式。
4.细菌通过结合完成遗传物质的交换与突变。
5.他们的遗传物质都在核膜中。
...

全部展开

下列叙述有关原核生物是正确的？
1 .遗传的同质性是细菌持续进化的原因。
2.他们主要进行二分裂，而不进行有丝分裂或减数分裂。
3.细菌的基因变异至今没有发现，或者根本没有发生，因为他们采用无性繁殖方式。
4.细菌通过结合完成遗传物质的交换与突变。
5.他们的遗传物质都在核膜中。
4是对的吧

收起

There is nothing can take the place of persistence是什么意思 The Persistence Of 额.我日记本封面的句子啊~ Persistence of viruses是什么意思 persistence of embryologic remnants是什么意思 persistence her persistence paid off when she was offered the job of pay off It reminds Alex ,and anyone with a dream,of the courage and persistence it takes 翻译 people are concerned that the persistence of high levels of unemployment has undermined..people are concerned that the persistence of high levels of unemployment has undermined people's confidence （in ）the economy's ability （to create） unempl 英语翻译they catapulted us from the industrial age to the digital age.It took plenty of imagination,persistence and nerve. 英语翻译In front of the all empty,spelling is patience and persistence.请兄弟姐妹们帮忙翻译翻译. 能帮我分析下句子成分和语法吗?But only one reminds me of the courage and persistence it takes to stay the course in the Shadowland. belive is the starting point for success,persistence is the end of success相信是成功的起点,坚持是成功的终点我觉得不的通顺【计算机英语】I think the reason for the common approach of IsValid as ...I think the reason for the common approach of IsValid as some kind of general,catch-all test might be because of too much focus on persistence. The key__sucess lies in persistence and hard work A to B of 请问选哪个啊.最好给解释下为什么, Nothing in the world can take piace persistence语法讲解 It reminds Alex ,and anyone with a dream,of the courage and persistence it takes to stay句法分析完整句子 It reminds Alex ,and anyone with a dream,of the courage and persistence it takes to stay the course in the shadowland.帮我分析下这英语翻译A description of how disruption,persistence,and dynamic reconstitution of organizational routines resulting from the discontinuous technological change brought about by the introduction of novel technologies in organizations.在organizati 1.The persistence of bacteria throughout evolutionary time is due to their genetic homogeneity (i.e.,sameness).2.They divide by binary fission,without mitosis or meiosis.3.Genetic variation in bacteria is not known to occur,nor should it occur,becaus