![subject](/tpl/images/cats/biologiya.png)
Biology, 23.10.2021 23:10 nerdypineapple
Hair is primarily composed of a protein called, keratin. Some regions of the polypeptide chain may take on a twisting shape.
The twisting of the polypeptide chain is an example of which protein structure level?
quaternary
primary
secondary
tertiary
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 17:30
If the birth rate of a population of dolphins is 2.0, the death rate is 0.5, and the population size is 100, what is this dolphin's population growth?
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 05:50
Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 06:30
Which of the following is a common response to cell signaling?
Answers: 2
![question](/tpl/images/cats/biologiya.png)
You know the right answer?
Hair is primarily composed of a protein called, keratin. Some regions of the polypeptide chain may t...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.10.2019 00:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 17.10.2019 00:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.10.2019 00:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.10.2019 00:30
![question](/tpl/images/cats/mat.png)
Mathematics, 17.10.2019 00:30
![question](/tpl/images/cats/es.png)
Spanish, 17.10.2019 00:30
![question](/tpl/images/cats/istoriya.png)
History, 17.10.2019 00:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 17.10.2019 00:30
![question](/tpl/images/cats/mat.png)