<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A team of biology graduate students are performing research on epigenetics and chromosome inactivation. The goal is to silence all the genes on a chromosome at once. The team chooses to develop a model based on a known human gene that can accomplish this task in vivo. Which of the genes listed below would be a suitable model for their research?? A: SRY, B: XIST, C: Hox, D: Hedgehog, E: NF1,  <response>: This is a question about epigenetics and chromosome inactivation. The goal is to silence all the genes on a chromosome at once in vivo. To accomplish this, they need to choose a gene that is known to inactivate an entire chromosome when expressed. SRY is a gene on the Y chromosome that is important for male sex determination. It would not inactivate an entire chromosome.Hox genes are important for body segmentation during development. They would not inactivate an entire chromosome. Hedgehog is a signaling molecule involved in development. It would not inactivate a chromosome.NF1 is a tumor suppressor gene. Its inactivation would not silence a whole chromosome.XIST is a gene on the X chromosome that coats and inactivates one of the X chromosomes in females to accomplish dosage compensation. This makes XIST the best choice, since its known function matches the goal of the research.B: XIST 