DNA
Replication
Transcription
Translation
Misc.
100
DNA stands for...
Deoxyribose Nucleic Acid
100
What enzyme unwinds DNA?
Helicase
100
What is Transcription?
It is the process of creating MRNA from DNA
100
which is the main organelle involved in translation?
ribosome
100
What is 23 and me ?
A company meant to find your ancestor and your origen in the world by comparing sequences of your DNA with a database
200
Name the three components of a nucleotide...
Nitrogenous Base
Phosphate
Deoxyribose
200
What is the function of the primase?
The function is to synthesize a short strand of MRNA called Primer
200
Explain the role of MRNA in Transcription...
DNA cannot abandon the nucleus but it can be copied into MRNA that transfers the information of a gene into the cytoplasm
200
how do you call the group of three bases that determine an amioacid belonging to RNA
codon
200
What is DNA analysis?
A group of techniques by which you can compare short sequences of DNA in order to find who is the culprit of a crime or a biological parent
300
In a short summary, describe the structure of DNA...
Double stranded helix antiparell dextrogyre
300
In which direction does DNA polymerase synthesize?
5 Prime, 3 Prime
300
What nitrogenous base complement adenine?
uracile
300
what is the genetic code?
The correspondence between each codon and the aminoacid they code for
300
Mention three terms related to law enforcemente and court in English
acquitted, crime, Exonerate , beyond reasonable doubt, exhonerated, indicment, jury......
400
Define a gene...
A segment of DNA that contains information for one protein
400
SSBP stand for
Single stranded binding proteins
400
mention two structural features of RNA once transcription ends
a tail of polyA
a cup of UAG that codes for metionine
400
define two freatures of the genetic code
universal:It applies to all the living organisms, and degenerated:more than un code codes for a sigle aminoacid avoiding mutations.
400
cell cycle: in which phase DNA is replicated
During phase S
500
What are histones?
They are proteins around which DNA coils
500
what are okazaki fragments?
hort, newly synthesized DNA sequences that are formed on the lagging strand during DNA replication. They allow the cell to replicate both strands of a DNA molecule simultaneously, despite the fact that DNA polymerase can only synthesize new DNA in one direction
500
Describe how gene expression can be regulated in eucaryotic cells
by splicing introns after transacription
500
define two features of the genetic code
universal: All the living organisms have it in common
degenerated : more that one codon can codify for one aminoacid avoiding mutations if there is an error
500
cell cyle: in which phase errors in the replication can be corrected
G2