Sign in to save your progress, vote, and build your own decks.Sign in
Cell Bio Test Prep I
38 cards·by Simiankolya
DNA replication begins when a _ opens the DNA and unwinds it
Helicase
The 2nd step of DNA replication: A _ begins to make short RNA _
Primase, primers
In order for a DNA polymerase to start replication, it needs a correct pair of _ on the _ to start
Bases, RNA primer
In a replication bubble, the leading strand is formed from _' to _'
5, 3
In a replication bubble, the lagging strand is read from _' tp _'
3, 5
In order to extend the template strand after replication, a _ is needed
RNA primer
In order to extend the _ strand after replication, an RNA primer is needed
Template
In the first step of transcription, an _ binds to the enhancer, finds the _
RNA polymerase, promoter
In the first step of transcription, an RNA polymerase binds to the _, finds the promoter
Enhancer
As transcription begins, the end of the new RNA strand gains a _ protein and a _
Capping, PolyA tail
The _ is found before the promoter
Enhancer
The _ is found between the enhancer and the 5' UTR
Promoter
The _ is found between the Promoter and the start codon
5' UTR
The _ is found between the 5' UTR and the exon
Start codon
The _ is found between the start codon and the intron
Exon
The _ is found between the exon and the 3' UTR
Intron
The _ is found between the intron and the terminator
3' UTR
The _ is found after the 3' UTR
Terminator
UTR stands for _
Untranslated region
Repressors can bind to _
Enhancers
_ can bind to enhancers
Repressors
The start codon is _, and codes for _
AUG, methionine
The stop codons are _, _, and _, and code for the _
UGA, UAG, UAA, release factor
In a lac operon, the repressor binds to the operator when _ is present and _ is absent
Glucose, lactose
In the lac operon, the cap and repressor both bind when glucose is _ and lactose is _
Absent, absent
In the lac operon, the cap binds and the repressor doesn't bind when _ is present and _ is absent
Lactose, glucose
Splicing takes place when a _ brings the coding region around an _ together, forming it into a _
structure and cutting it loose
snRNP, intron, lariat
During DNA replication, the _ is extended in a 5' -> 3' direction, with short DNA strands called
Okazaki fragments
RNA primer
During DNA replicaiton, the _ proteins prevent re-annealing of the DNA strands
Single stranded DNA binding
During DNA replication, _ forms the Okazaki fragments from the _
DNA polymerase III, RNA primer
During DNA replication, _ joins the Okazaki fragments together
Ligase
Adenine and Guanine are _
Purines
Thymine and Cytosine are _
Pyrimidines
Adenine and Thymine form _ hydrogen bonds with each other
2
Guanine and Cytosine form _ hydrogen bonds with each other
3
RNA has an extra _ group between the base and the phosphodiester bind
OH
RNA has _ instead of Thymine
Uracil
RNA has Uracil instead of _
Thymine