Question
click below
click below
Question
Normal Size Small Size show me how
12.3
Question | Answer |
---|---|
The three possible models of replication were | ___Conservative____, semi-conservative, and dispersive. |
Meselson & Stahl determined that replication was | __Semi-conservative____. |
___Helicase____ does what? | unwinds and separates the DNA. |
__Topoisomerase____ does what? | relieves supercoiling. |
What stranded binding protein coat the single stranded DNA to protect it from degradation? | Single |
___Primers____ are | small pieces of RNA to provide a 3’ hydroxyl group for DNA polymerase to add a nucleotide and are provided by the enzyme primase. |
DNA ____Polymerase____ | is the enzyme that adds the nucleotides to the newly growing DNA strand. |
___Replication_____ takes place in the | 5’ to 3’direction. |
___Telomeres____ are | the ends of the chromosome which track how many times a cell has replicated. |
According to the video the leading strand replicates in a... | __Continuous__ manner, while the lagging strand replicates in short pieces called Okazaki fragments. |
What does Exonuclease do? | removes the RNA ___Primer__ from the new DNA strands. |
What does DNA ___Ligase__ do? | joins all of the pieces of DNA in the new strands together by covalently bonding the sugar phosphate backbone. |
What is telomerase? | an enzyme that can maintain the ends of the chromosomes and is activated in cancer. |
Prokaryotes have a | __Circular____ chromosome. |
In prokaryotes, DNA molecules are located in the | Nucleus |
In eukaryotes, nearly all the DNA is found in the | Nucleus |
The diagram below shows the process of DNA | replication |
The main enzyme involved in linking individual nucleotides into DNA molecules is | DNA polymerase |
During replication, which sequence of nucleotides would bond with the DNA sequence TATGA? | ATACT |
In eukaryotic chromosomes, DNA is tightly coiled around proteins called | histones |
When prokaryotic cells copy their DNA, replication begins at | one point on the DNA molecule |
The three possible models of replication were | ___Conservative____, semi-conservative, and dispersive. |
Meselson & Stahl determined that replication was | __Semi-conservative____. |
___Helicase____ does what? | unwinds and separates the DNA. |
__Topoisomerase____ does what? | relieves supercoiling. |
What stranded binding protein coat the single stranded DNA to protect it from degradation? | Single |
___Primers____ are | small pieces of RNA to provide a 3’ hydroxyl group for DNA polymerase to add a nucleotide and are provided by the enzyme primase. |
DNA ____Polymerase____ | is the enzyme that adds the nucleotides to the newly growing DNA strand. |
___Replication_____ takes place in the | 5’ to 3’direction. |
___Telomeres____ are | the ends of the chromosome which track how many times a cell has replicated. |
According to the video the leading strand replicates in a... | __Continuous__ manner, while the lagging strand replicates in short pieces called Okazaki fragments. |
What does Exonuclease do? | removes the RNA ___Primer__ from the new DNA strands. |
What does DNA ___Ligase__ do? | joins all of the pieces of DNA in the new strands together by covalently bonding the sugar phosphate backbone. |
What is telomerase? | an enzyme that can maintain the ends of the chromosomes and is activated in cancer. |
Prokaryotes have a | __Circular____ chromosome. |
In prokaryotes, DNA molecules are located in the | Nucleus |
In eukaryotes, nearly all the DNA is found in the | Nucleus |
The diagram below shows the process of DNA | replication |
The main enzyme involved in linking individual nucleotides into DNA molecules is | DNA polymerase |
During replication, which sequence of nucleotides would bond with the DNA sequence TATGA? | ATACT |
In eukaryotic chromosomes, DNA is tightly coiled around proteins called | histones |
When prokaryotic cells copy their DNA, replication begins at | one point on the DNA molecule |
Compared to eukaryotic cells, prokaryotic cells contain | about one thousandth as much DNA. |
How many cells are present after 80 minutes? | 16 |
If the DNA of this bacterium is 4 million base pairs in length, how many total molecules of A,T,C, and G are required for replication to be successful? | 4 million |