13.14. On the following figures, genes A and B are on the X chromosome (blue) and both are subject to X inactivation, while genes C and D are on chromosome 17 (an autosome; red). F and S refer to alleles encoding fast- and slow-migrating forms of the corresponding proteins that can be discriminated by electrophoresis. For women 2 and 3 in the figures that follow, indicate all the possible forms of the four proteins that could be expressed in clones made from different individual somatic cells that already had one or more Barr bodies. As an example, some clones from normal woman 1 could express the AF, BF, CF, CS, DF, and DS proteins, while other clones could express the AS, BS, CF, CS, DF, and DS proteins. None of the clones from woman 1 should make both the slow and fast forms of proteins A or B. Woman 2 is a heterozygote for a deletion of the XIC. Woman 3 is a heterozygote for a reciprocal translocation in which parts of the X chromosome and chromosome 17 have exchanged places. Woman 1 XIC BF DF AS DS XIC Woman 2 XIC AF BF DF AS BS DS Woman 3 XIC AF / DS BF AS BS CF DF
13.14. On the following figures, genes A and B are on the X chromosome (blue) and both are subject to X inactivation, while genes C and D are on chromosome 17 (an autosome; red). F and S refer to alleles encoding fast- and slow-migrating forms of the corresponding proteins that can be discriminated by electrophoresis. For women 2 and 3 in the figures that follow, indicate all the possible forms of the four proteins that could be expressed in clones made from different individual somatic cells that already had one or more Barr bodies. As an example, some clones from normal woman 1 could express the AF, BF, CF, CS, DF, and DS proteins, while other clones could express the AS, BS, CF, CS, DF, and DS proteins. None of the clones from woman 1 should make both the slow and fast forms of proteins A or B. Woman 2 is a heterozygote for a deletion of the XIC. Woman 3 is a heterozygote for a reciprocal translocation in which parts of the X chromosome and chromosome 17 have exchanged places. Woman 1 XIC BF DF AS DS XIC Woman 2 XIC AF BF DF AS BS DS Woman 3 XIC AF / DS BF AS BS CF DF
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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