EASY
AS and A Level
IMPORTANT
Earn 100
What can be found in both DNA and messenger RNA (mRNA)?
50% studentsanswered this correctly
Important Questions on Nucleic Acids and Protein Synthesis
MEDIUM
AS and A Level
IMPORTANT
How would you justify the statement that the discovery of the structure of DNA is one of the most important discoveries ever made by humans?
EASY
AS and A Level
IMPORTANT
Name the bond formed when two amino acids join by condensation.
MEDIUM
AS and A Level
IMPORTANT
Which statement about base pairing in nucleic acids is not correct?
MEDIUM
AS and A Level
IMPORTANT
How many different triplets can be coded for using four different bases?
EASY
AS and A Level
IMPORTANT
Nucleic acids are made of chains of:
HARD
AS and A Level
IMPORTANT
Annotate the above drawing to explain the replication of DNA.
HARD
AS and A Level
IMPORTANT
The given table shows all the mRNA codons for the amino acid leucine. Complete the table by entering, for each codon, the tRNA anticodon that would bind with it and the DNA triplet from which it was transcribed.
| mRNA codon | tRNA anticodon | DNA triplet from which mRNA was transcribed |
| UUA | ||
| UUG | ||
| CUU | ||
| CUC | ||
| CUA | ||
| CUG |
HARD
AS and A Level
IMPORTANT
Complete the table to distinguish between the processes of transcription and translation.
| Transcription | Translation | |
| Site in a cell where it occurs | ||
| The molecule used as a template | ||
| Molecule produced | ||
| Component molecules (monomers) of molecule produced |
||
| One other molecule that is essential for the process to occur |
