Alee's SI Worksheet for October 15 2009

Alee's SI Worksheet for October 15 2009 - BSC 2010 Alee's...

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BSC 2010 – Alee’s SI Review Sessions Name: ________________________________ Thursday, October 15, 2009 Three Types of Linkage ____________________________________ – Refers to genes that reside on the X chromosome ____________________________________ – Refers to those (very few) genes that reside only on the Y chromosome ____________________________________ – Refers to genes that reside on the same autosome Today, we are going to focus on the sex genes and sex linkage. Definitions: _____________________________________ – Genes that reside on both the X and Y (their tips) _____________________________________ – Genes that reside only on the Y (not on X) _____________________________________ = Sex-determining region of Y; Holandric gene that encodes _____________ (Testes-determining factor; TDF is regulatory protein that initiates the development of maleness in the early mammalian embryo) _____________________________________ – Refers to sex that always produces different gametes relative to the sex chromosomes (e.g., human males) _____________________________________ – Refers to sex that always produces the same gamete relative to the sex chromosomes (e.g., human females) _____________________________________ – Refers to a gene of a normal diploid individual which is represented by only one allele (not two) (e.g., an X-linked gene of male fruit flies and humans)
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Alee's SI Worksheet for October 15 2009 - BSC 2010 Alee's...

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