MGG exam 11 questions & answers
rated A+ latest update 2025/2026
Which sequence is present in the mature mRNA but not translated? - correct answer ✔✔UTR
Which RNA polymerase transcribes rRNAs? - correct answer ✔✔RNA pol 1
What must happen before RNA polymerase II will attach and begin to transcribe mRNA? -
correct answer ✔✔All of the promoter element sites must be bound by their respective
transcription factors
Since there is no specific stop site in eukaryotic transcription, where do you think they would
label the end of an eukaryotic mRNA in the gene graphic of a genome browser program? -
correct answer ✔✔poly(A) site
What is the first step in splicing out of an intron? - correct answer ✔✔The 2' OH of an interior
adenosine attacks the 5' splice site
What are the consequences of alternative splicing? - correct answer ✔✔Different mRNA
variants can be made for different tissues from a single gene
A "consensus sequence" is: - correct answer ✔✔a sequence comprising the most common base
in the population at each position
What is a natural consequence of the development of paralogs? - correct answer ✔✔One of the
paralogs stays functional and the other is evolutionarily free to mutate
, When looking at the sequence of a pseudogene, how can you tell it was derived via reverse
transcription? - correct answer ✔✔poly(A) tract present and no introns or promoter
In globin evolution in mammals, several evolutionary events occurred. Which of the following
events did NOT occur? - correct answer ✔✔Reduction from a large set to a smaller, more
compact set of globins
What does "LTR" stand for? - correct answer ✔✔long terminal repeat
What happens to the viral RNA template in retroviral/LTR retrotransposon replication? - correct
answer ✔✔Viral RNase H degrades it during synthesis of the cDNA strand
The ends of the retroviral RNA are R-U5 at the 5' end and U3-R at the 3' end. How are these
converted to U3-R-U5 (LTR)? - correct answer ✔✔template switching
According to the replication model we studied, where do LINES insert in the genome? - correct
answer ✔✔At poly(T) sites
Which task does the transposase of DNA transposons NOT perform? - correct answer
✔✔Reverse transcription to create DNA form of the transposon
What is found at the ends of the DNA transposon, making it possible for the transposase to grab
both ends at the same time? - correct answer ✔✔Tandem Inverted Repeat
In DNA replication, what happens when a portion of the template "bubbles out" and then
replication continues? - correct answer ✔✔The new strand loses a few extra nucleotides
are there introns in bacteria - correct answer ✔✔no
rated A+ latest update 2025/2026
Which sequence is present in the mature mRNA but not translated? - correct answer ✔✔UTR
Which RNA polymerase transcribes rRNAs? - correct answer ✔✔RNA pol 1
What must happen before RNA polymerase II will attach and begin to transcribe mRNA? -
correct answer ✔✔All of the promoter element sites must be bound by their respective
transcription factors
Since there is no specific stop site in eukaryotic transcription, where do you think they would
label the end of an eukaryotic mRNA in the gene graphic of a genome browser program? -
correct answer ✔✔poly(A) site
What is the first step in splicing out of an intron? - correct answer ✔✔The 2' OH of an interior
adenosine attacks the 5' splice site
What are the consequences of alternative splicing? - correct answer ✔✔Different mRNA
variants can be made for different tissues from a single gene
A "consensus sequence" is: - correct answer ✔✔a sequence comprising the most common base
in the population at each position
What is a natural consequence of the development of paralogs? - correct answer ✔✔One of the
paralogs stays functional and the other is evolutionarily free to mutate
, When looking at the sequence of a pseudogene, how can you tell it was derived via reverse
transcription? - correct answer ✔✔poly(A) tract present and no introns or promoter
In globin evolution in mammals, several evolutionary events occurred. Which of the following
events did NOT occur? - correct answer ✔✔Reduction from a large set to a smaller, more
compact set of globins
What does "LTR" stand for? - correct answer ✔✔long terminal repeat
What happens to the viral RNA template in retroviral/LTR retrotransposon replication? - correct
answer ✔✔Viral RNase H degrades it during synthesis of the cDNA strand
The ends of the retroviral RNA are R-U5 at the 5' end and U3-R at the 3' end. How are these
converted to U3-R-U5 (LTR)? - correct answer ✔✔template switching
According to the replication model we studied, where do LINES insert in the genome? - correct
answer ✔✔At poly(T) sites
Which task does the transposase of DNA transposons NOT perform? - correct answer
✔✔Reverse transcription to create DNA form of the transposon
What is found at the ends of the DNA transposon, making it possible for the transposase to grab
both ends at the same time? - correct answer ✔✔Tandem Inverted Repeat
In DNA replication, what happens when a portion of the template "bubbles out" and then
replication continues? - correct answer ✔✔The new strand loses a few extra nucleotides
are there introns in bacteria - correct answer ✔✔no
