6/ 6 pts
Question 1
Consider the following DNA sequence: 3-AAC TAC TGT GTA -5'
a. Write out the complementary RNA sequence, including the 5" and 3.
b. Translation starts on which end of the RNA (5' or 3')?
c. ldentify the start codon in the complementary sequence you wrote in part a. of this question.
Your Answer:
A.5'-UUG AUG ACA CAU-3'
B. translation begins on the 5' end of the RNA strand
C.AUG
-UUG AUG ACA CAU -3’
W
ol
c. AUG
, True or False: Transcription of DNA into mRNA requires an RNA primer.
e
fi_)' False
3/6pts
Question 3
Why must the DNA within eukaryotes be complexed with histone proteins, but not in bacteria? What
happens to these complexes during DNA replication?
Your Answer:
In eurkaryotic cells, DNA is condensed with the proteins to form chromatin. Then during the DNA
around the
replication process the chromatin relaxes, and after replication the DNA condenses back
histones again.
to be stored within a tiny
There is a huge amount of DNA within a eukaryotic cell, and it needs
into chromatin that help to
space within the nucleus. Therefore, it is complexed with proteins
for DNA replication to occur, the
condense it into an extremely compact form. When it is time
as soon as replication is
complexes relax due to the proteins dissociating from it. Then
histone proteins and recondenses.
complete at a certain point, the DNA winds around the
s ~amnnnant not answered
Question 1
Consider the following DNA sequence: 3-AAC TAC TGT GTA -5'
a. Write out the complementary RNA sequence, including the 5" and 3.
b. Translation starts on which end of the RNA (5' or 3')?
c. ldentify the start codon in the complementary sequence you wrote in part a. of this question.
Your Answer:
A.5'-UUG AUG ACA CAU-3'
B. translation begins on the 5' end of the RNA strand
C.AUG
-UUG AUG ACA CAU -3’
W
ol
c. AUG
, True or False: Transcription of DNA into mRNA requires an RNA primer.
e
fi_)' False
3/6pts
Question 3
Why must the DNA within eukaryotes be complexed with histone proteins, but not in bacteria? What
happens to these complexes during DNA replication?
Your Answer:
In eurkaryotic cells, DNA is condensed with the proteins to form chromatin. Then during the DNA
around the
replication process the chromatin relaxes, and after replication the DNA condenses back
histones again.
to be stored within a tiny
There is a huge amount of DNA within a eukaryotic cell, and it needs
into chromatin that help to
space within the nucleus. Therefore, it is complexed with proteins
for DNA replication to occur, the
condense it into an extremely compact form. When it is time
as soon as replication is
complexes relax due to the proteins dissociating from it. Then
histone proteins and recondenses.
complete at a certain point, the DNA winds around the
s ~amnnnant not answered
