Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Q: Schimke immuno-osseous dysplasia (OMIM 242900) is an uncommon autosomal-recessive multisystem disease caused by mutations in SMARCAL1 (swi/snf-related, matrix-associated, actin-dependent regulator of chromatin, subfamily a-like 1), a gene encoding a putative chromatin remodeling protein. Neurologic manifestations identified to date relate to enhanced atherosclerosis and cerebrovascular disease. Based on a clinical survey, we determined that half of Schimke immuno-osseous dysplasia patients have a small head circumference, and 15% have social, language, motor, or cognitive abnormalities. Postmortem examination of 2 Schimke immuno-osseous dysplasia patients showed low brain weights and subtle brain histologic abnormalities suggestive of perturbed neuron-glial migration such as heterotopia, irregular cortical thickness, incomplete gyral formation, and poor definition of cortical layers. We found that SMARCAL1 is highly expressed in the developing and adult mouse and human brain, including neural precursors and neuronal lineage cells. These observations suggest that SMARCAL1 deficiency may influence brain development and function in addition to its previously recognized effect on cerebral circulation.

A: Mutations in which gene cause Schimke immune-osseous dysplasia?
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Q: Reprimo (RPRM), is a gene located at human chromosome 2q23 whose expression in conjunction with p53, along with other genes which are p53-induced, is associated with the arrest of the cell cycle at the G2 phase.Reprimo's protein product is a highly glycosylated polypeptide which, upon its expression, is localized to the cytoplasm where it is primarily active.

A: What species is Reprimo specific to?
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Q: In 1977, Hawker Siddeley became a founding component of the nationalised British Aerospace (BAe).

A:
By what was Hawker Siddeley replaced?
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