![subject](/tpl/images/cats/biologiya.png)
Only the proteins that the bacteria escherichia coli (e. coli) needs are synthesized at any given time. for example, when lactose is available in the environment, e. coli will express the lac genes that allow it to break down lactose to obtain energy. when lactose is not present, these genes are not expressed. mc012-1.jpg which prevents the lac genes in the dna of e. coli from being expressed most of the time? the lac repressor the lac operator the lac promoter the lac locator
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 03:30
Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 06:00
Explain why ecosystem diversity results in species diversity in a healthy biosphere
Answers: 3
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 08:00
What advantages does a pedigree have over a written passage?
Answers: 3
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 08:30
What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna
Answers: 2
You know the right answer?
Only the proteins that the bacteria escherichia coli (e. coli) needs are synthesized at any given ti...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2021 20:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2021 20:00
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
Spanish, 16.12.2021 20:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 16.12.2021 20:00
![question](/tpl/images/cats/biologiya.png)
Biology, 16.12.2021 20:00
![question](/tpl/images/cats/biologiya.png)
Biology, 16.12.2021 20:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2021 20:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2021 20:00
![question](/tpl/images/cats/fizika.png)
Physics, 16.12.2021 20:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2021 20:00