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100
This determines the newly synthesized strand during DNA replication?
What is the template strand?
100
Enzyme responsible for unwinding DNA molecule and forming replication fork
What is helicase?
100
Most abundant type of RNA
What is rRNA?
100
Type of bond between paired bases of DNA double helix
What are hydrogen bonds?
100
One way to prevent viral infection in humans
What is vaccination?
200
Reason why viruses are considered obligate parasites?
What is they need a cell to reproduce?
200
Rules that state adenine=thymine, and guanine equals cytosine
What is Chargaffs Rules?
200
Scientist who purified heat killed S cells, and tested for the ability to transform live R cells
Who is Oswald Avery?(McCarty , Macleod)
200
Assimilation of external DNA into a cell
What is transformation?
200
In their experiment, Hershey and Chase knew that DNA contains ____________, but protein does not.
What is phosphorus?
300
These are coding segments in a stretch of DNA
What are exons?
300
How the leading and lagging strands of DNA replication different?
What is they leading strand runs in the same direction as replication fork, and the lagging strand runs in the opposite direction?
300
Term for DNA strands chemically running in opposite directions
What is antiparallel?
300
This separates molecules by movement due to size and electrical charge
What is gell electrophoresis?
300
If these proteins were destroyed, all of the DNA wouldn't fit in the nucleus
What are histones?
400
This relieves the strain ahead of the DNA replication fork
What is topoisomerase?
400
How eukaryotes differ in replication from prokaryotes
What is having many origins of replication?
400
Name one viral disease that effects humans and other veretbrates
What is rabies, west nile etc
400
This adds nucleotides to the end of a growing DNA strand
What is DNA polymerase (III) ?
400
Term for viral DNA that has combined with host cell DNA (chromosome?
What is prophage?
500
A mutation in this section of DNA could influence the binding of RNA polymerase to the DNA
What is the promoter?
500
These cleave nucleic acids at specific sites
What are restriction enzymes?
500
The reason why DNA replication elongates only in 5' to 3' direction
What is DNA polymerase only adds nucleotides to the free 3' end?
500
Coordinated control of gene expression in bacteria
What is the operon model?
500
Reason why DNA has a uniform diameter
What is purines always pair with pyrimidines?