Final answer:
Proteins that are likely to act as gene activators are (d) both H and J.
Step-by-step explanation:
Gene activators are proteins that bind to specific DNA sequences and enhance the transcription of genes. Option (d) includes both H and J proteins, indicating that these proteins have the potential to act as gene activators. These proteins likely possess DNA-binding domains that enable them to interact with regulatory regions of genes, promoting transcriptional activation.
While the specific properties of proteins G and J are not provided, it's known that gene activators typically have domains that recognize and bind to specific DNA sequences, facilitating the recruitment of RNA polymerase and other transcriptional machinery. The activation of gene expression is crucial for regulating cellular processes, and proteins with gene activator functions play a key role in controlling the timing and level of gene transcription.
In summary, (d)proteins H and J are likely to act as gene activators based on their potential to bind to specific DNA sequences and enhance the transcription of genes. The ability to activate gene expression is a fundamental aspect of cellular regulation, and proteins with gene activator functions contribute to the precise control of gene activity within a cell.