Diagram illustrating the Universal Genetic Code Chart used in protein synthesis, including mRNA codons and amino acids for various species.

It looks like you've uploaded a page from a biology worksheet titled "Protein Synthesis Practice 3", which includes the Universal Genetic Code Chart and two questions related to interpreting mRNA codons and amino acid sequences.

However, you mentioned that there is an image with a task, but I don't see any additional pages or diagrams (like the "next page" referenced in the instructions) containing the actual data for species A and species B. The provided image only shows:

- The Universal Genetic Code Chart.
- Two incomplete questions:
1. Fill in missing amino acids for species A.
2. Fill in missing mRNA bases for species B.

But without the amino acid sequence or mRNA strand for species A and B (which should be on the next page), I can’t complete the task.

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🔍 What You Need to Provide:

To help you solve this problem, please provide either:
- The amino acid sequence for species A (so I can determine the corresponding mRNA codons).
- Or the mRNA strand for species B (so I can fill in missing bases based on the genetic code).

Alternatively, if you have a second page of the worksheet, please upload it or describe the information given for species A and B.

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✔ Example of How This Works:

Let’s say for species A, the amino acid sequence is:

> MET – LEU – THR – SER – STOP

Using the Genetic Code Chart, we can find the corresponding mRNA codons:

- MET → AUG (start codon)
- LEU → CUU, CUC, CUA, or CUG
- THR → ACU, ACC, ACA, or ACG
- SER → UCU, UCC, UCA, or UCG
- STOP → UAA, UAG, or UGA

So the mRNA would be something like:
AUG-CUU-ACU-UCU-UAA

And vice versa — if you're given mRNA and need amino acids, just look up each codon in the chart.

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📌 Summary:

Please provide the missing data (either the amino acid sequence for species A or the mRNA strand for species B), and I’ll walk you through solving both problems step by step using the Universal Genetic Code Chart.

Once I have that, I can:
- Translate mRNA → amino acids (for species A)
- Transcribe amino acids → mRNA codons (for species B)

Just reply with the missing information!