Protein Synthesis Worksheet for learning DNA to mRNA to protein translation.

I will solve the "Protein Synthesis Worksheet" by following the directions step-by-step. The worksheet involves transcribing DNA to mRNA and then translating the mRNA into amino acids using the genetic code.

Step 1: Transcribe the DNA to mRNA (for the first sequence)

The first DNA sequence given is:
`T A C G C T C A G A T A G`

According to the rules of transcription, we pair each DNA base with its complementary RNA base:
- DNA `A` pairs with RNA `U`
- DNA `T` pairs with RNA `A`
- DNA `C` pairs with RNA `G`
- DNA `G` pairs with RNA `C`

So, transcribing the DNA sequence:
- `T` -> `A`
- `A` -> `U`
- `C` -> `G`
- `G` -> `C`
- `C` -> `G`
- `T` -> `A`
- `C` -> `G`
- `A` -> `U`
- `G` -> `C`
- `A` -> `U`
- `T` -> `A`
- `A` -> `U`
- `G` -> `C`

This gives us the mRNA sequence: `A U G C G A G U C U A U C`

Step 2: Translate the mRNA to Amino Acids (for the first sequence)

Next, I need to use the genetic code to translate the mRNA sequence into amino acids. I will break the mRNA sequence into codons (groups of three bases):

- Codon 1: `AUG` -> This is the start codon, which codes for Methionine (Met).
- Codon 2: `CGA` -> This codes for Arginine (Arg).
- Codon 3: `GUC` -> This codes for Valine (Val).
- Codon 4: `UAU` -> This codes for Tyrosine (Tyr).
- Codon 5: `C` -> This is an incomplete codon (only one base), so it does not code for an amino acid.

Therefore, the amino acid sequence for the first part is: Met - Arg - Val - Tyr

Step 3: Answer the fill-in-the-blank questions

Question 2: "mRNA is made during (transcription/translation)."
- mRNA is synthesized from a DNA template in a process called transcription.

Question 3: "mRNA is made in the (cytoplasm/nucleus)."
- In eukaryotic cells, transcription occurs in the nucleus.

Step 4: Transcribe the DNA to mRNA (for the second sequence)

The second DNA sequence given is:
`C T A C A A G C G T T A G A`

Transcribing this sequence:
- `C` -> `G`
- `T` -> `A`
- `A` -> `U`
- `C` -> `G`
- `A` -> `U`
- `A` -> `U`
- `G` -> `C`
- `C` -> `G`
- `G` -> `C`
- `T` -> `A`
- `T` -> `A`
- `A` -> `U`
- `G` -> `C`
- `A` -> `U`

This gives us the mRNA sequence: `G A U G U U C G C A A U C U`

Step 5: Translate the mRNA to Amino Acids (for the second sequence)

Breaking the mRNA sequence into codons:

- Codon 1: `GAU` -> This codes for Aspartic Acid (Asp).
- Codon 2: `GUU` -> This codes for Valine (Val).
- Codon 3: `CGC` -> This codes for Arginine (Arg).
- Codon 4: `AAU` -> This codes for Asparagine (Asn).
- Codon 5: `CU` -> This is an incomplete codon (only two bases), so it does not code for an amino acid.

Therefore, the amino acid sequence for the second part is: Asp - Val - Arg - Asn

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Final Answer

Here is the completed worksheet:

First Sequence:
- DNA: `T A C G C T C A G A T A G`
- mRNA: `A U G C G A G U C U A U C`
- Amino Acids: Met - Arg - Val - Tyr

Fill-in-the-blank Questions:
2. mRNA is made during transcription.
3. mRNA is made in the nucleus.

Second Sequence:
- DNA: `C T A C A A G C G T T A G A`
- mRNA: `G A U G U U C G C A A U C U`
- Amino Acids: Asp - Val - Arg - Asn