Why don't cells last the entire lifetime of an organism?
The removal of the RNA primer following DNA replication leads to a shortening of the chromosome and eventual cell death.
DNA
- How is the correct DNA strand chosen for the template for the process of transcription?
- What is transcription, and where does it take place?
- Why do retroviruses not follow the central dogma?
- How does single stranded RNA replicate?
- Ribosomes are a collection of ___ that are needed for ___.
- What does the central dogma say?
- Describe the different types of RNA.
- How do DNA and RNA differ?
- What is PCR (polymerase chain reaction)?
- What are telomeres?
- The ___ function of DNA polymerase reduces the number of mistakes by the square of the frequency of the error rate.
- What is the enzyme found in 90% of human cancers and may be responsible for the continuous division of cancer cells?
- What makes the first repair of mistakes during DNA replication?
- How does DNA replication differ between bacteria and eukaryotes?
- What is the order of synthesis of the lagging strand in replication?
- In what direction is the new DNA strand synthesized during replication?
- Why is RNA incorporated into the DNA molecule during DNA replication?
- From where does the energy necessary for making a DNA molecule come?
- At the end of DNA replication, two DNA molecules are produced, each one consisting of a parental strand and a new strand. What type of replication is this?
- What are mutations?
- What characteristic of DNA allows it to replicate and to do transcription?
- The two strands of DNA are antiparallel. What does this mean?
- What accounts for the uniform diameter of DNA?
- Describe the molecular architecture of DNA.