The diagram below shows the map for Pst I restriction sites around the BRCA1 gene for...

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The diagram below shows the map for Pst I restriction sites around the BRCA1 gene for two alleles of the gene, and a southem blot of DNA far four people that are either homazygous for one of the two alleles or are heterozygous for these alleles. The DNA was digested with the restriction enzyme Pstl and probed with a radioactively labeled DNA from a cloned copy of the BRCA1 gene. Which individual(s) islare homozygous for allele 27 Choose the best answer. Allele 1 BRCAI Est I Est I 6 kb Allele 2 8 kb 1 2 3 4 Select one: O A. 2 and 3 O B. You cannot determine homozygous individuals without information from their affspring O C. 1 and 4 O D. 1 O E. 4 The diagram below shows the map for Pst I restriction sites around the BRCA1 gene for two alleles of the gene, and a southem blot of DNA far four people that are either homazygous for one of the two alleles or are heterozygous for these alleles. The DNA was digested with the restriction enzyme Pstl and probed with a radioactively labeled DNA from a cloned copy of the BRCA1 gene. Which individual(s) islare homozygous for allele 27 Choose the best answer. Allele 1 BRCAI Est I Est I 6 kb Allele 2 8 kb 1 2 3 4 Select one: O A. 2 and 3 O B. You cannot determine homozygous individuals without information from their affspring O C. 1 and 4 O D. 1 O E. 4

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