Determine the mRNA sequence that is coded by the following strand of DNA.
Sense strand: A T G G G T T C A
Antisense strand: T A C C C A A G T
Replication and transcription both involve DNA.
Complete Table 1 by using a tick (✓) to indicate which features apply to each of the processes. Use a cross (X) for features that do not apply. The first row has been completed for you.
Table 1
Feature |
Replication |
Transcription |
a double-stranded molecule is produced |
✓ |
X |
hydrogen bonds are broken |
||
Only one strand of DNA acts as a template |
||
phosphodiester bonds are formed |
||
RNA polymerase is used |
Figure 1 shows the exposed bases (anticodons) of two tRNA molecules involved in the
synthesis of a protein.
Figure
UGC |
AAC |
Complete the boxes to show the codon sequence of bases found along the corresponding section of the mRNA strand.
Name the structures labelled X, Y and Z in Figure 2
Figure 2
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