Central Dogma of Molecular Biology
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1
Gene expression involves the the "reading" of what
DNA
2
How many chromosomes do humans have
46
3
Gene expression leads to the synthesis of what
proteins
4
What takes genetic instructions to the sites of protein synthesis
messenger ribonucleic acid
5
What does mRNA do
takes genetic instructions to the sites of protein synthesis
6
What do messenger ribonucleic acid molecules consist of
4 different nucleic acids strung together in various sequences
7
When does DNA leave the nucleus
never
8
Transcription
process of assembling a strand of mRNA that contains information of a gene
9
transcript
trancribed strand of mRNA interspaced between protein coding genes
10
Promoter
end of the gene where the RNA synthesizing enzyme RNA polymerase binds to initiate transcription
11
What do transcription factors do
regulate the binding of RNA polymerase to the promoter
12
RNA synthesyzing enzyme is called
RNA polymerase
13
terminator
stop sequence where the RNA polymerase recognizes as the end point for transcription
14
What does the RNA polymerase recognize as the end point for transcription
terminator
15
coding sequences of DNA
exons
16
noncoding sequences of DNA
introns
17
Do initial transcripts contain introns or extrons
both
18
List two things that happen in RNA splicing
introns are removed from the initial transcript, remaining exons are fused together
19
Where are mRNA transcripts synthesized and spliced
within the nucleous
20
where do mRNA transcripts leave the nucleous
pores in the nucleus envelope
21
proteins are assembled out of what
amino acids
22
Briefly summarize the central dogma of molecular biology
DNA, transcription, mRNA, translation, protein
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