Table 1. Primers, addressed to microsatellites mapping to chromosome 21, used in the allele specific PCR of this study.

Marker	Primer 5′→3′	Product size (bp)
D21S11	TTTCTCAGTCTCCATAAATATGTG	225–280
	GATGTTGTATTAGTCAATGTTCTC
D21S1270	CTATCCCACTGTATTATTCAGGGC	285–340
	TGAGTCTCCAGGTTGCAGGTGACA
D21S1411	ATAGGTAGATACATAAATATGATGA	256–340
	TATTAATGTGTGTCCTTCCAGGC
D21S1435	CCCTCTCAATTGTTTGTCTACC	160–200
	ACAAAAGGAAAGCAAGAGATTTCA