Describe how replication begins at a predetermined point (origin) and occurs bi-directionally and how replication occurs semi discontinuously.
Describe how replication begins at a predetermined point (origin) and occurs bi-directionally and how replication occurs...
DNA replication begins at the Origin of replication , creating one __________ and two replication forks.
Fill in Blank. This was only given. DNA replication begins at the Origin of replication , creating one __________ and ____________.
Question 7 (1 point) Saved DNA replication occurs through the semi-conservative replication mechanism; what was observed in the Meselson and Stahl experiment, in which DNA purified from E. coli growing on 14N-medium was centrifuged in a density gradient tube, by the third generation of DNA replication? One band representing "light" DNA OTwo bands: a light density band and a faint hybrid density band Three bands: one each of light density, hybrid density, and high density bands One band representing "heavy"...
DNA replication at each origin occurs only once during the cell cycle because of: a) specificity of the origin-recognition complex (ORC) b) S phase CDK phoshporylating MCM helicase c) MCM helicase loading by M phase cyclins d) G1 cyclin/CDK activation of E2F
Which statement does not describe a fundamental feature of DNA replication? It is semiconservative. It requires a template. It involves polymerizing deoxyribonucleotides only. It begins at a DNA location known as an origin.
How many replication forks depart from an origin of replication? one two three four five QUESTION 10 A new DNA strand elongates only in the 5 to 3 direction because DNA polymerase can only add nucleotides to the free 3'end. replication must progress toward the replication fork. the polarity of the DNA molecule prevents addition of nucleotides at the 3'end. Okazaki fragments prevent elongation in the 3 to 5 direction DNA polymerase begins adding nucleotides at the end of the...
Describe the role of reverse transcriptase in HIV replication cycle. Describe all of its roles and the components involved in carrying out its function. Describe antigenic shift in Flu virus and describe where and how it occurs,
21) When an error occurs in DNA replication, how does the cell know which nucleotide on which strand should be corrected? (10 points) 22) During conjugation, the bacterial chromosome is usually not exchanged. Describe a situation where the bacterial chromosome could be exchanged between microbes? (10 points)
Meselson and Stahl’s experiment showed that DNA replication occurs via a semiconservative mechanism. Using the same methods that were used in their experiment describe the content of the DNA double helices (how many or what percent would be all heavy? all light? half-heavy?) after 5 rounds of replication.
1. Describe one experiment that can test the hypothesis that DNA replication is semi conservative. Describe the results of this experiment if replication was conservative. And if it was distributive? 2. What type of chemical bond contributes to the specificity of base paring in the DNA? Are there any other chemical or physical factors in the structure o f the DNA molecule contributing to the thermodynamic stability of the DNA? 3. List the m ajor differences between DNA and RNA....