Protein Synthesis

A mutation changes one base in a DNA sequence. Why might this result in a different protein being produced—or no protein at all?

A scientist deletes one base from a gene sequence. Predict how this will likely affect the resulting protein, and explain why.

How does the process of transcription ensure that only the necessary genes are expressed in a specific cell type, such as a nerve or muscle cell?

Why is the sequence of bases in a gene important in determining the shape and function of a protein?

If a cell produces a defective protein that does not function properly, what are two possible steps in the protein synthesis process where an error may have occurred? Explain.

Imagine a protein needs to be produced quickly in response to an infection. How might a cell speed up protein synthesis, and what trade-offs could that cause?

Two organisms have similar traits but different DNA sequences. Explain how this is possible in terms of protein synthesis.

Why might a silent mutation (a change in the DNA that does not change the amino acid) still affect the efficiency or regulation of protein production?