24 February 2014
Group #: _____
Title: Investigation 9A and 9B: Transcription and Translation
Pre-Lab Discussion Questions:
1.) Describe how each of the following are involved in transcription.
a.) Template Strand:
This is fundamentally the complementary strand to the complementary strand of the original
strand in transcription.
In transcription, the mRNA molecule combines a number of things into a consistent whole from
the template strand of DNA.
c.) Base Pairing:
In base pairing, Uracil is the base instead of Thymine, meaning Adenine would pair with Uracil
2.) Describe how each of the following are involved in translation.
In translation, this molecule takes complementary copies of code sequences from DNA and
carries them from the nucleus to the ribosomes.
The tRNA molecule relocates each amino acid to the ribosome as clearly identified in the coded
messages in mRNA.
c.) rRNA/ Ribosome:
In translation, ribosomes are the main scene of protein synthesis. The rRNA molecule keeps
ribosomes in a certain area and helps establish the starting point of the rRNA message.
d.) Amino Acid:
Amino acids make proteins, linking together to form long polypeptide chains.
3.) State where each of the following processes takes place in a cell.
a.) DNA Replication:
Takes place in the nucleus.
Takes place in both the nucleus and cytoplasm.
Takes places only in the cytoplasm.
Through the manipulation of beads, to simulate the processes of transcription and translation.
• Pop-it beads: 40 black, 40 white, 32 green,
32 red, 20 pink
• DNA molecules from Investigation 9A
• Masking tape
• Modeling clay
• mRNA molecule from...