11 Questions
Antigens are foreign substances that trigger the immune system to produce antibodies.
True
Antibodies are produced by the immune system in response to antigens.
True
Antigens and antibodies are only involved in the adaptive immune response.
False
Antigens are foreign substances that trigger the immune system to produce antibodies.
True
Antibodies are produced by the immune system to destroy foreign substances such as antigens.
True
Antigens and antibodies interact directly with each other to neutralize foreign substances.
False
What is the speed of replication per fork in E. coli?
1000 bp per second
How long does it take for E. coli to replicate its single circular chromosome of 4,639,221 bp?
About 42 minutes
What is the type of DNA replication in general?
Semiconservative
How many origin sites are present for replication in circular DNA molecules in bacteria, plasmids, and some viruses?
One
What is the length of the E. coli replication origin oriC?
≈240 bp
Study Notes
Immune System
- Antigens are foreign substances that trigger the immune system to produce antibodies.
- Antibodies are produced by the immune system in response to antigens to destroy foreign substances.
- Antigens and antibodies interact directly to neutralize foreign substances.
- Antigens and antibodies are only involved in the adaptive immune response.
DNA Replication
- In E. coli, the speed of replication per fork is not specified.
- It takes E. coli approximately 40-60 minutes to replicate its single circular chromosome of 4,639,221 base pairs.
- The type of DNA replication in general is not specified.
- In circular DNA molecules, such as those found in bacteria, plasmids, and some viruses, there is typically one origin site for replication.
- The E. coli replication origin, known as oriC, is approximately 245 base pairs in length.
Test your knowledge of antigens and antibodies with this quiz! Explore how these essential components of the immune system work together to protect the body from foreign invaders.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
